evna.care
Google Keyword Rankings for : crassula helmsii environment agency
1
Managing Invasive Non-Native Plants Booklet
https://www.midsussex.gov.uk/media/1725/managing-invasive-non-native-plants.pdf
Environment Agency Managing invasive non-native plants in or near fresh water 1. We are the Environment Agency. ... (Crassula helmsii) was introduced.
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https://www.midsussex.gov.uk/media/1725/managing-invasive-non-native-plants.pdf
Environment Agency Managing invasive non-native plants in or near fresh water 1. We are the Environment Agency. ... (Crassula helmsii) was introduced.
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2
What should I do if I already have invasive non-native species?
https://www.plantlife.org.uk/download_file/force/598/1061
New Zealand pygmyweed (aka Australian stonecrop, Crassula helmsii) is sufficient to cause ... First read the Environment Agency's booklet,.
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https://www.plantlife.org.uk/download_file/force/598/1061
New Zealand pygmyweed (aka Australian stonecrop, Crassula helmsii) is sufficient to cause ... First read the Environment Agency's booklet,.
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3
Crassula helmsii (Australian swamp stonecrop)
https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.16463
This datasheet on Crassula helmsii covers Identity, Overview, Distribution, Dispersal, Diagnosis, Biology & Ecology, Environmental ...
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https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.16463
This datasheet on Crassula helmsii covers Identity, Overview, Distribution, Dispersal, Diagnosis, Biology & Ecology, Environmental ...
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4
Controlling Crassula helmsii - impact and options
https://freshwaterhabitats.org.uk/projects/other-projects/controlling-crassula-helmsii/controlling-crassula-helmsii-impact-options/
Dominance of Crassula helmsii was shown to have a significant effect on the availability of bare ground and the abundance of native plant species. For every 10% ...
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https://freshwaterhabitats.org.uk/projects/other-projects/controlling-crassula-helmsii/controlling-crassula-helmsii-impact-options/
Dominance of Crassula helmsii was shown to have a significant effect on the availability of bare ground and the abundance of native plant species. For every 10% ...
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5
Crassula helmsii
https://gd.eppo.int/download/doc/77_datasheet_CSBHE.pdf
Crassula helmsii. Identity. Scientific name: Crassula helmsii (Kirk) Cockayne ... Environment Agency (2003) Guidance for the Control of Invasive Weeds in.
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https://gd.eppo.int/download/doc/77_datasheet_CSBHE.pdf
Crassula helmsii. Identity. Scientific name: Crassula helmsii (Kirk) Cockayne ... Environment Agency (2003) Guidance for the Control of Invasive Weeds in.
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6
Tiny mite could prove a 'mighty' weapon in the fight against ...
https://www.southwestwater.co.uk/about-us/latest-news/news-2018/tiny-mite-could-prove-a-mighty-weapon-in-the-fight-against-one-of-the-uks-most-invasive-weeds/
Dr Niall Moore, Chief Non-native Species Officer, Defra, said: “Aquatic invasive non-native species like Crassula helmsii can cause significant ...
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https://www.southwestwater.co.uk/about-us/latest-news/news-2018/tiny-mite-could-prove-a-mighty-weapon-in-the-fight-against-one-of-the-uks-most-invasive-weeds/
Dr Niall Moore, Chief Non-native Species Officer, Defra, said: “Aquatic invasive non-native species like Crassula helmsii can cause significant ...
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7
Guidance for the control of invasive weeds in or near fresh water
https://my.northtyneside.gov.uk/sites/default/files/web-page-related-files/Guidance%20for%20the%20control%20of%20invasive%20weeds%20in%20or%20near%20fresh%20water.pdf
Environment Agency (2003) Aquatic Weed. Control Operation – Revised Best Practice. Guidelines. Environment Agency and English Nature. (2002) Crassula helmsii: ...
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https://my.northtyneside.gov.uk/sites/default/files/web-page-related-files/Guidance%20for%20the%20control%20of%20invasive%20weeds%20in%20or%20near%20fresh%20water.pdf
Environment Agency (2003) Aquatic Weed. Control Operation – Revised Best Practice. Guidelines. Environment Agency and English Nature. (2002) Crassula helmsii: ...
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8
Crassula helmsii - GISD
http://www.iucngisd.org/gisd/speciesname/Crassula+helmsii
Crassula helmsii is a macrophyte native to Australia and New Zealand. It has become an especially problematic invasive in the United Kingdom ...
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http://www.iucngisd.org/gisd/speciesname/Crassula+helmsii
Crassula helmsii is a macrophyte native to Australia and New Zealand. It has become an especially problematic invasive in the United Kingdom ...
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9
2021 river basin management plans - Environment Agency
https://consult.environment-agency.gov.uk/++preview++/environment-and-business/challenges-and-choices/user_uploads/inns-challenge-rbmp-2021-1.pdf
Within the river basin planning process, the Environment Agency recorded only ... Australian swamp stonecrop (Crassula helmsii). Control at protected areas.
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https://consult.environment-agency.gov.uk/++preview++/environment-and-business/challenges-and-choices/user_uploads/inns-challenge-rbmp-2021-1.pdf
Within the river basin planning process, the Environment Agency recorded only ... Australian swamp stonecrop (Crassula helmsii). Control at protected areas.
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10
Wild plants: dangerous, invasive and protected species
https://www.gov.uk/guidance/wild-plants-dangerous-invasive-and-protected-species
You can find more information about SMR 5 on the Rural Payments Agency ( RPA ). ... Stonecrop, Australian Swamp, Crassula helmsii, (New Zealand Pigmyweed, ...
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https://www.gov.uk/guidance/wild-plants-dangerous-invasive-and-protected-species
You can find more information about SMR 5 on the Rural Payments Agency ( RPA ). ... Stonecrop, Australian Swamp, Crassula helmsii, (New Zealand Pigmyweed, ...
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11
Crassula helmsii.pdf - Aquatic Plant - Wisconsin DNR
https://dnr.wi.gov/topic/Invasives/documents/classification/Crassula%20helmsii.pdf
Aquatic Plant. Australian Swamp Stonecrop; New Zealand Pygmyweed. I. Current Status and Distribution. Crassula helmsii a. Range. Global/Continental.
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https://dnr.wi.gov/topic/Invasives/documents/classification/Crassula%20helmsii.pdf
Aquatic Plant. Australian Swamp Stonecrop; New Zealand Pygmyweed. I. Current Status and Distribution. Crassula helmsii a. Range. Global/Continental.
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12
2019.11.21 Pond restoration Malvern Hills Trust
https://www.malvernhills.org.uk/latest-news/20191121-pond-restoration/
MHT plans to restore four small ponds on Castlemorton Common which have become infested with crassula helmsii, a non-native plant which is ...
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https://www.malvernhills.org.uk/latest-news/20191121-pond-restoration/
MHT plans to restore four small ponds on Castlemorton Common which have become infested with crassula helmsii, a non-native plant which is ...
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13
Invasive weeds - Australian swamp stonecrop fact file - everysite
http://adlib.everysite.co.uk/adlib/defra/content.aspx?doc=58937&id=58954
Australian swamp stonecrop (Crassula helmsii) was introduced from Tasmania to Britain in 1911. It was first sold as an oxygenating plant in 1927.
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http://adlib.everysite.co.uk/adlib/defra/content.aspx?doc=58937&id=58954
Australian swamp stonecrop (Crassula helmsii) was introduced from Tasmania to Britain in 1911. It was first sold as an oxygenating plant in 1927.
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14
Effectiveness of eradication measures for the invasive ...
https://www.reabic.net/journals/mbi/2018/3/MBI_2018_Loop_etal.pdf
The amphibious invasive alien Crassula helmsii is native to Australasia and introduced in ... increased in the UK (Environment Agency 2003;.
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https://www.reabic.net/journals/mbi/2018/3/MBI_2018_Loop_etal.pdf
The amphibious invasive alien Crassula helmsii is native to Australasia and introduced in ... increased in the UK (Environment Agency 2003;.
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15
Proposed release of a non-native biological control agent for ...
https://planthealthportal.defra.gov.uk/assets/pras/Aculus-Consultation-Letter.pdf
of Crassula helmsii (Australian swamp-stonecrop). I am writing to invite your view on ... Releases to the Environment, and other agencies.
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https://planthealthportal.defra.gov.uk/assets/pras/Aculus-Consultation-Letter.pdf
of Crassula helmsii (Australian swamp-stonecrop). I am writing to invite your view on ... Releases to the Environment, and other agencies.
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16
Effective management of the invasive aquatic plant Australian ...
https://www.findaphd.com/phds/project/effective-management-of-the-invasive-aquatic-plant-australian-swamp-stonecrop-crassula-helmsii-in-wetlands/?p79400
... Swamp Stonecrop (Crassula helmsii) in wetlands at University of Brighton, ... the Environment Agency who are the main partners for this project.
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https://www.findaphd.com/phds/project/effective-management-of-the-invasive-aquatic-plant-australian-swamp-stonecrop-crassula-helmsii-in-wetlands/?p79400
... Swamp Stonecrop (Crassula helmsii) in wetlands at University of Brighton, ... the Environment Agency who are the main partners for this project.
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17
Invasive non-native species - Scotland's environment web
https://www.environment.gov.scot/get-involved/submit-your-data/invasive-non-native-species/
Given the numerous environmental, health and economic impacts that invasive non-native species ... New Zealand Pigmyweed (Crassula helmsii).
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https://www.environment.gov.scot/get-involved/submit-your-data/invasive-non-native-species/
Given the numerous environmental, health and economic impacts that invasive non-native species ... New Zealand Pigmyweed (Crassula helmsii).
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18
Australian Swamp Stonecrop (Crassula helmsii)
http://embed.widencdn.net/pdf/download/widnr/osoydc48mv/SS1078.pdf?u=s6hrco&showinbrowser=true
other species ordered through water garden catalogs (Environment Agency, 2003). C. helmsii has escaped confinement and has been intentionally or ...
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http://embed.widencdn.net/pdf/download/widnr/osoydc48mv/SS1078.pdf?u=s6hrco&showinbrowser=true
other species ordered through water garden catalogs (Environment Agency, 2003). C. helmsii has escaped confinement and has been intentionally or ...
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19
Crassula helmsii : New Zealand Pigmyweed - NBN Atlas
https://species.nbnatlas.org/species/NBNSYS0000004639
Crassula helmsii, known as swamp stonecrop or New Zealand pigmyweed, is an aquatic or semiterrestrial species of succulent plant in the family Crassulaceae.
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https://species.nbnatlas.org/species/NBNSYS0000004639
Crassula helmsii, known as swamp stonecrop or New Zealand pigmyweed, is an aquatic or semiterrestrial species of succulent plant in the family Crassulaceae.
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20
The Ecology, Impacts, and Control of Crassula helmsii Clare E ...
https://core.ac.uk/download/pdf/42142495.pdf
Crassula helmsii could have a negative impact on native plant ... (Environment Agency, 2010), covering the plant with black plastic for three to six months ...
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https://core.ac.uk/download/pdf/42142495.pdf
Crassula helmsii could have a negative impact on native plant ... (Environment Agency, 2010), covering the plant with black plastic for three to six months ...
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21
Tiny mite could prove a 'mighty' weapon in the fight ... - CABI
https://www.cabi.org/news-article/tiny-mite-could-prove-a-mighty-weapon-in-the-fight-against-one-of-the-uks-most-invasive-weeds/
Dr Niall Moore, Chief Non-native Species Officer, Defra said: 'Aquatic invasive non-native species like Crassula helmsii can cause significant ...
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https://www.cabi.org/news-article/tiny-mite-could-prove-a-mighty-weapon-in-the-fight-against-one-of-the-uks-most-invasive-weeds/
Dr Niall Moore, Chief Non-native Species Officer, Defra said: 'Aquatic invasive non-native species like Crassula helmsii can cause significant ...
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22
Crassula helmsii - 2007 - EPPO Bulletin - Wiley Online Library
https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2338.2007.01111.x
C. helmsii is a native species of Australia and New Zealand and is reported to be invasive or potentially invasive in Florida and North Carolina ...
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https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2338.2007.01111.x
C. helmsii is a native species of Australia and New Zealand and is reported to be invasive or potentially invasive in Florida and North Carolina ...
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23
Australian swamp stonecrop - Invasive-Species.org
https://www.invasive-species.org/species/australian-swamp-stonecrop/
Australian swamp stonecrop (Crassula helmsii) is an invasive aquatic plant that dominates still and slow-flowing waterbodies. It was initially introduced ...
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https://www.invasive-species.org/species/australian-swamp-stonecrop/
Australian swamp stonecrop (Crassula helmsii) is an invasive aquatic plant that dominates still and slow-flowing waterbodies. It was initially introduced ...
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24
GOOD PRACTICE MANAGEMENT
https://nnnsi.org/assets/NNNSI/NZP-management.pdf
New Zealand Pygmyweed (Crassula helmsii) ... one study used a combination of environmental and chemical control with apparent success. At Mochrum Loch SSSI, ...
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https://nnnsi.org/assets/NNNSI/NZP-management.pdf
New Zealand Pygmyweed (Crassula helmsii) ... one study used a combination of environmental and chemical control with apparent success. At Mochrum Loch SSSI, ...
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25
Invasive aquatic plant species in wetlands
https://www.brighton.ac.uk/aquatic/what-we-do/research-projects/invasive-aquatic-plant-species-in-wetlands.aspx
This research programme incorporates two of the most problematic species, Australian Swamp Stonecrop (Crassula helmsii) and Floating Pennywort (Hydrocotle ...
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https://www.brighton.ac.uk/aquatic/what-we-do/research-projects/invasive-aquatic-plant-species-in-wetlands.aspx
This research programme incorporates two of the most problematic species, Australian Swamp Stonecrop (Crassula helmsii) and Floating Pennywort (Hydrocotle ...
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26
INVASIVE NON-NATIVE AQUATIC PLANTS OF NORFOLK
https://www.broads-authority.gov.uk/looking-after/managing-land-and-water/conservation-publications-and-reports/water-conservation-reports/45.-NNNSI-Action-Plan-2009-13.pdf
water bodies in England and Wales (Environment Agency 2009). ... Species Profile 1: Australian Swamp Stonecrop Crassula helmsii. Description.
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https://www.broads-authority.gov.uk/looking-after/managing-land-and-water/conservation-publications-and-reports/water-conservation-reports/45.-NNNSI-Action-Plan-2009-13.pdf
water bodies in England and Wales (Environment Agency 2009). ... Species Profile 1: Australian Swamp Stonecrop Crassula helmsii. Description.
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27
Risk analysis report of non-native organisms in Belgium
http://www.biodiversity.be/2634/download
swamp stonecrop Crassula helmsii (Kirk) Cockayne. - Risk analysis report of non-native ... water plants (Environment Agency, 2003).
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http://www.biodiversity.be/2634/download
swamp stonecrop Crassula helmsii (Kirk) Cockayne. - Risk analysis report of non-native ... water plants (Environment Agency, 2003).
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28
Lets talk about invasive species - crassula helmsii | WWT
https://www.wwt.org.uk/wetland-centres/washington/news/lets-talk-about-invasive-species-crassula-helmsii/
Crassula helmsii is a highly adaptable plant which can tolerate many different growing conditions. It can grow below the water's surface or at ...
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https://www.wwt.org.uk/wetland-centres/washington/news/lets-talk-about-invasive-species-crassula-helmsii/
Crassula helmsii is a highly adaptable plant which can tolerate many different growing conditions. It can grow below the water's surface or at ...
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29
Assessment of the host-range and impact of the mite, Aculus ...
https://www.sciencedirect.com/science/article/pii/S1049964422000196
The non-native aquatic weed Crassula helmsii, or Australian swamp stonecrop, has become widespread and a major problem in aquatic habitats in the UK and ...
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https://www.sciencedirect.com/science/article/pii/S1049964422000196
The non-native aquatic weed Crassula helmsii, or Australian swamp stonecrop, has become widespread and a major problem in aquatic habitats in the UK and ...
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30
Grazing Vertebrates Promote Invasive Swamp ... - BioOne
https://bioone.org/journals/invasive-plant-science-and-management/volume-8/issue-2/IPSM-D-14-00068.1/Grazing-Vertebrates-Promote-Invasive-Swamp-Stonecrop-Crassula-helmsii-Abundance/10.1614/IPSM-D-14-00068.1.full
The mean percentage cover (± 1 SE) of Crassula helmsii in grazed and ... April 2010. http://cdn.environment-agency.gov.uk/LIT_5001_d24b8c.
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https://bioone.org/journals/invasive-plant-science-and-management/volume-8/issue-2/IPSM-D-14-00068.1/Grazing-Vertebrates-Promote-Invasive-Swamp-Stonecrop-Crassula-helmsii-Abundance/10.1614/IPSM-D-14-00068.1.full
The mean percentage cover (± 1 SE) of Crassula helmsii in grazed and ... April 2010. http://cdn.environment-agency.gov.uk/LIT_5001_d24b8c.
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31
The Ecology, Impacts, and Control of Crassula helmsii
https://eprints.bournemouth.ac.uk/22511/1/The%20Ecology%20Impacts%20and%20Control%20of%20Crassula%20helmsii.pdf
to variation in the abiotic environment, how C. helmsii abundance was ... (Environment Agency, 2010), covering the plant with black plastic for three to six ...
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https://eprints.bournemouth.ac.uk/22511/1/The%20Ecology%20Impacts%20and%20Control%20of%20Crassula%20helmsii.pdf
to variation in the abiotic environment, how C. helmsii abundance was ... (Environment Agency, 2010), covering the plant with black plastic for three to six ...
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32
Invasive non-native plants associated with fresh waters
https://www.nature.scot/sites/default/files/2018-01/Species%20Action%20Framework%20-%20Invasive%20non-native%20plants%20associated%20with%20fresh%20waters%20-%20A%20guide%20to%20their%20identification%20-%20training%20manual.pdf
Scottish Environment Protection Agency ... New Zealand Pygmyweed Crassula helmsii. ... Invasive non-native plants cause both environmental and economic.
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https://www.nature.scot/sites/default/files/2018-01/Species%20Action%20Framework%20-%20Invasive%20non-native%20plants%20associated%20with%20fresh%20waters%20-%20A%20guide%20to%20their%20identification%20-%20training%20manual.pdf
Scottish Environment Protection Agency ... New Zealand Pygmyweed Crassula helmsii. ... Invasive non-native plants cause both environmental and economic.
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33
Grazing Vertebrates Promote Invasive Swamp Stonecrop ...
https://www.cambridge.org/core/journals/invasive-plant-science-and-management/article/grazing-vertebrates-promote-invasive-swamp-stonecrop-crassula-helmsii-abundance/BE38012B32E110B73349B9C0A2AD9CB7
Grazing Vertebrates Promote Invasive Swamp Stonecrop (Crassula helmsii) Abundance ... April 2010. http://cdn.environment-agency.gov.uk/LIT_5001_d24b8c.PDF.
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https://www.cambridge.org/core/journals/invasive-plant-science-and-management/article/grazing-vertebrates-promote-invasive-swamp-stonecrop-crassula-helmsii-abundance/BE38012B32E110B73349B9C0A2AD9CB7
Grazing Vertebrates Promote Invasive Swamp Stonecrop (Crassula helmsii) Abundance ... April 2010. http://cdn.environment-agency.gov.uk/LIT_5001_d24b8c.PDF.
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34
Non-Native Plants | Urban River Survey
https://urbanriversurvey.org/non-native-plants/
The Environment Agency recently identified seven non-native plant species that ... stonecrop (Crassula helmsii), Parrot's feather ((Myriophyllum aquaticum), ...
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https://urbanriversurvey.org/non-native-plants/
The Environment Agency recently identified seven non-native plant species that ... stonecrop (Crassula helmsii), Parrot's feather ((Myriophyllum aquaticum), ...
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35
New Zealand Pigmyweed (Crassula helmsii) Invasive Species ...
https://invasives.ie/app/uploads/2021/09/Crassula_helmsii_ISAP.pdf
C. helmsii has negative impacts on the environment, biodiversity, native flora and ... State agencies and local authorities should prioritise sites for.
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https://invasives.ie/app/uploads/2021/09/Crassula_helmsii_ISAP.pdf
C. helmsii has negative impacts on the environment, biodiversity, native flora and ... State agencies and local authorities should prioritise sites for.
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36
Risk Assessment of Crassula helmsii
http://nonnativespecies.ie/wp-content/uploads/2014/03/Crassula-helmsii-Australian-Swamp-Stonecrop2.pdf
Crassula helmsii Kirk (Cockayne) – Australian Swamp Stonecrop ... Agency UK 2003). ... Environmental Protection Agency, Wexford pp. 20.
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http://nonnativespecies.ie/wp-content/uploads/2014/03/Crassula-helmsii-Australian-Swamp-Stonecrop2.pdf
Crassula helmsii Kirk (Cockayne) – Australian Swamp Stonecrop ... Agency UK 2003). ... Environmental Protection Agency, Wexford pp. 20.
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37
Control and eradication of Australian swamp stonecrop ...
https://conservationevidencejournal.com/reference/pdf/5865
Crassula helmsii (Australian swamp stonecrop or New Zealand pygmyweed) was first recorded ... Funding for the project was agreed and Environment Agency.
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https://conservationevidencejournal.com/reference/pdf/5865
Crassula helmsii (Australian swamp stonecrop or New Zealand pygmyweed) was first recorded ... Funding for the project was agreed and Environment Agency.
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38
Crassula helmsii - (Kirk) Cockayne - EUNIS - European Union
https://eunis.eea.europa.eu/species/196103
The European Environment Agency (EEA) is an agency of the European Union. Legal notice EU flag.
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https://eunis.eea.europa.eu/species/196103
The European Environment Agency (EEA) is an agency of the European Union. Legal notice EU flag.
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39
Wales Invasive Non-native Species Group Newsletter
https://www.biodiversitywales.org.uk/File/759/en-GB
Topmouth Gudgeon (credit: Matt Brazier, Environment Agency), ... Warden Peter Phillips the reddish galls produced by Crassula helmsii in.
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https://www.biodiversitywales.org.uk/File/759/en-GB
Topmouth Gudgeon (credit: Matt Brazier, Environment Agency), ... Warden Peter Phillips the reddish galls produced by Crassula helmsii in.
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40
Invasive Non-Native Plant Species in Ponds
https://www.herefordshirewt.org/blog/meg-c/invasive-non-native-plant-species-ponds
New Zealand Pigmyweed (Crassula helmsii) ... Environment Agency (2010) Managing invasive non-native plants in or near fresh water.
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https://www.herefordshirewt.org/blog/meg-c/invasive-non-native-plant-species-ponds
New Zealand Pigmyweed (Crassula helmsii) ... Environment Agency (2010) Managing invasive non-native plants in or near fresh water.
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41
Reducing nutrient availability and enhancing biotic resistance ...
https://link.springer.com/article/10.1007/s10530-020-02327-0
The invasive Australian swamp stonecrop, Crassula helmsii, is a perennial amphibious herb originating from Australia and New Zealand.
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https://link.springer.com/article/10.1007/s10530-020-02327-0
The invasive Australian swamp stonecrop, Crassula helmsii, is a perennial amphibious herb originating from Australia and New Zealand.
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42
New Zealand pigmyweed - Invasive Species Ireland
https://invasivespeciesireland.com/species-accounts/established/freshwater/new-zealand-pigmyweed
This species is suited to a wide range of environmental tolerances and is well adapted to Irish conditions. Most slow moving freshwater systems are believed to ...
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https://invasivespeciesireland.com/species-accounts/established/freshwater/new-zealand-pigmyweed
This species is suited to a wide range of environmental tolerances and is well adapted to Irish conditions. Most slow moving freshwater systems are believed to ...
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43
RSPB's Llandudno Junction reserve salt water to kill swamp ...
https://www.bbc.com/news/uk-wales-north-west-wales-17232052
Crassula helmsii on the mud banks and in close up. Image caption, ... Environment Agency Wales' biodiversity technical specialist.
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https://www.bbc.com/news/uk-wales-north-west-wales-17232052
Crassula helmsii on the mud banks and in close up. Image caption, ... Environment Agency Wales' biodiversity technical specialist.
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44
6. SOME ASPECTS OF CONTROL OF FRESHWATER ... - jstor
https://www.jstor.org/stable/j.ctt1sq5v3j.9
Olaf Booy, Animal and Plant Health Agency, UK ... Trevor Renals, Environment Agency, UK ... that applying glyphosate reduced Crassula helmsii.
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https://www.jstor.org/stable/j.ctt1sq5v3j.9
Olaf Booy, Animal and Plant Health Agency, UK ... Trevor Renals, Environment Agency, UK ... that applying glyphosate reduced Crassula helmsii.
→ Check Latest Keyword Rankings ←
45
Invasive non-native plants / RHS Gardening
https://www.rhs.org.uk/prevention-protection/invasive-non-native-plants
Crassula helmsii (Australian swamp stonecrop, New Zealand pygmyweed) EW, NI, ... water bodies, consult with the Environment Agency who can supply a list of ...
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https://www.rhs.org.uk/prevention-protection/invasive-non-native-plants
Crassula helmsii (Australian swamp stonecrop, New Zealand pygmyweed) EW, NI, ... water bodies, consult with the Environment Agency who can supply a list of ...
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46
Investigations into the potential of classical biological control ...
https://pure.royalholloway.ac.uk/files/39759442/2020VariaSPhD.pdf
Research on the biological control of Crassula helmsii....................... 28 ... from spreading to new sites (Environment Agency, 2010).
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https://pure.royalholloway.ac.uk/files/39759442/2020VariaSPhD.pdf
Research on the biological control of Crassula helmsii....................... 28 ... from spreading to new sites (Environment Agency, 2010).
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47
Strategic control of non-native invasive aquatic plants
http://publications.naturalengland.org.uk/file/79060
swamp stonecrop Crassula helmsii. ... Environment Agency led partnerships in a few areas. ... River catchments also map onto the Environment Agency's.
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http://publications.naturalengland.org.uk/file/79060
swamp stonecrop Crassula helmsii. ... Environment Agency led partnerships in a few areas. ... River catchments also map onto the Environment Agency's.
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48
Crassula helmsii: Biological control using herbivores
https://www.conservationevidence.com/actions/1277
Some species of host-specific insects, such as chrysomelid and curculionid beetles, have been used as biological control agents of invasive aquatic weeds in ...
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https://www.conservationevidence.com/actions/1277
Some species of host-specific insects, such as chrysomelid and curculionid beetles, have been used as biological control agents of invasive aquatic weeds in ...
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49
Campaign against aquatic invasive species - cloudfront.net
https://dnu7gk7p9afoo.cloudfront.net/Files/all-choked-up.doc
Australian swamp stonecrop (also known as New Zealand Pigmyweed), Crassula helmsii or Tillea recurva. Water fern, Azolla filiculoides.
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https://dnu7gk7p9afoo.cloudfront.net/Files/all-choked-up.doc
Australian swamp stonecrop (also known as New Zealand Pigmyweed), Crassula helmsii or Tillea recurva. Water fern, Azolla filiculoides.
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50
Crassula helmsii in the British Isles - An unwelcome invader
https://www.researchgate.net/publication/270281080_Crassula_helmsii_in_the_British_Isles_-_An_unwelcome_invader
... It is also highly invasive, and can regenerate from just one node of growth (Centre for Aquatic Plant Management, 2004;Natural Environment ...
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https://www.researchgate.net/publication/270281080_Crassula_helmsii_in_the_British_Isles_-_An_unwelcome_invader
... It is also highly invasive, and can regenerate from just one node of growth (Centre for Aquatic Plant Management, 2004;Natural Environment ...
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51
Australian swamp-stonecrop- Crassula helmsii - Angling Trust
https://anglingtrust.net/wp-content/uploads/2020/03/Australian_swamp_-_Management.pdf
Australian swamp-stonecrop- Crassula helmsii ... Requires AqHerb01 approval from the Environment Agency and NPTC PA1 & PA6 qualifications.
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https://anglingtrust.net/wp-content/uploads/2020/03/Australian_swamp_-_Management.pdf
Australian swamp-stonecrop- Crassula helmsii ... Requires AqHerb01 approval from the Environment Agency and NPTC PA1 & PA6 qualifications.
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52
10. Some Aspects of Control of Freshwater Invasive Species
https://books.openbookpublishers.com/10.11647/obp.0267.10.pdf
Trevor Renals, Environment Agency, UK. Emmanuelle Sarat, International Union ... Crassula helmsii fragments in hot water led to higher mortality than drying.
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https://books.openbookpublishers.com/10.11647/obp.0267.10.pdf
Trevor Renals, Environment Agency, UK. Emmanuelle Sarat, International Union ... Crassula helmsii fragments in hot water led to higher mortality than drying.
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53
Invasive Species - Greater Lincolnshire Nature Partnership
https://glnp.org.uk/images/uploads/services/nature-strategy/invasive-species-id-guides.pdf
(Environment Agency or Natural England). Report sightings. All sightings of floating pennywort should be reported to the. Lincolnshire Environmental Records ...
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https://glnp.org.uk/images/uploads/services/nature-strategy/invasive-species-id-guides.pdf
(Environment Agency or Natural England). Report sightings. All sightings of floating pennywort should be reported to the. Lincolnshire Environmental Records ...
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54
Non-Native Invasive Plants - Dedham Vale AONB
https://www.dedhamvalestourvalley.org/managing/conservation-and-enhancement/non-native-invasive-plants/
... projects with the Environment Agency since 2012 to raise awareness of key NNIP in the Stour Valley, ... New Zealand pigmyweed (Crassula helmsii).
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https://www.dedhamvalestourvalley.org/managing/conservation-and-enhancement/non-native-invasive-plants/
... projects with the Environment Agency since 2012 to raise awareness of key NNIP in the Stour Valley, ... New Zealand pigmyweed (Crassula helmsii).
→ Check Latest Keyword Rankings ←
55
In Depth: Glyphosate – What is it and why does it matter?
https://www.ada.org.uk/2017/03/depth-glyphosate-matter/
These plants, including the invasive non-native Australian swamp stonecrop (Crassula helmsii), can cause problems by forming dense beds ...
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https://www.ada.org.uk/2017/03/depth-glyphosate-matter/
These plants, including the invasive non-native Australian swamp stonecrop (Crassula helmsii), can cause problems by forming dense beds ...
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56
Dispersal of the non-native invasive species Crassula helmsii ...
https://www.tandfonline.com/doi/abs/10.1179/2042349714Y.0000000046
Koen Deforce (Flanders Heritage Agency) is thanked for help with electron microscopy. Wim Pauwels and Hans Vansteenbrugge (ANB) enabled us to ...
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https://www.tandfonline.com/doi/abs/10.1179/2042349714Y.0000000046
Koen Deforce (Flanders Heritage Agency) is thanked for help with electron microscopy. Wim Pauwels and Hans Vansteenbrugge (ANB) enabled us to ...
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57
INVASIVE PLANTS
https://www.gwynedd.llyw.cymru/en/Council/Documents---Council/Strategies-and-policies/Environment-and-planning/Biodiversity/Topic-Action-Plans/Invasive-Plants-Action-Plan.pdf
Australian swamp stonecrop (Crassula helmsii) ... Environment Agency Wales (2003) have published a document on the control of invasive weeds.
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https://www.gwynedd.llyw.cymru/en/Council/Documents---Council/Strategies-and-policies/Environment-and-planning/Biodiversity/Topic-Action-Plans/Invasive-Plants-Action-Plan.pdf
Australian swamp stonecrop (Crassula helmsii) ... Environment Agency Wales (2003) have published a document on the control of invasive weeds.
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58
The Wildlife and Countryside Act 1981 (Prohibition on Sale etc ...
https://www.legislation.gov.uk/ukia/2014/66/pdfs/ukia_20140066_en.pdf
Five invasive aquatic plants, which cause environmental and ... Australian swamp stone-crop (New Zealand Pygmyweed), Crassula helmsii.
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https://www.legislation.gov.uk/ukia/2014/66/pdfs/ukia_20140066_en.pdf
Five invasive aquatic plants, which cause environmental and ... Australian swamp stone-crop (New Zealand Pygmyweed), Crassula helmsii.
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59
Devon Invasive Species Initiative
https://www.devonlnp.org.uk/knowledge-hub/invasive-species/
The partnership of four organisations, Tamar Valley AONB, Environment Agency, Natural England and Cornwall Council, have been working together for the past 15 ...
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https://www.devonlnp.org.uk/knowledge-hub/invasive-species/
The partnership of four organisations, Tamar Valley AONB, Environment Agency, Natural England and Cornwall Council, have been working together for the past 15 ...
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60
2019 Catherine Chatters and Joanne Gore New Forest Non ...
https://www.hiwwt.org.uk/sites/default/files/2020-01/191223%20Report%20on%20control%20of%20Creeping%20Water%20Primrose%20at%20Breamore%20Marsh%202009%20to%202019%20CAC%20and%20JG_0.pdf
these species [Ludwigia grandiflora and Crassula helmsii] before the ... On 18 August 2009 the Environment Agency's invasive non-native ...
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https://www.hiwwt.org.uk/sites/default/files/2020-01/191223%20Report%20on%20control%20of%20Creeping%20Water%20Primrose%20at%20Breamore%20Marsh%202009%20to%202019%20CAC%20and%20JG_0.pdf
these species [Ludwigia grandiflora and Crassula helmsii] before the ... On 18 August 2009 the Environment Agency's invasive non-native ...
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61
Invasive Weed Control for Sports Turf - LanGuard
https://www.languard.co.uk/sports-turf-management/invasive-weed-control/
Australian Swamp Stonecrop (Crassula helmsii), Parrots Feather (Myriophyllum aquaticum) and Floating Pennywort (Hydrocotyle ranunculoides) are just three on ...
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https://www.languard.co.uk/sports-turf-management/invasive-weed-control/
Australian Swamp Stonecrop (Crassula helmsii), Parrots Feather (Myriophyllum aquaticum) and Floating Pennywort (Hydrocotyle ranunculoides) are just three on ...
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62
Invasive non-native species: challenges for the water ...
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1027486/INNS-challenges-for-the-water-environment.odt
Recent work from Environment Agency commissioned research7. Linking the presence of invasive alien species ... Crassula helmsii (Australian swamp stonecrop).
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https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1027486/INNS-challenges-for-the-water-environment.odt
Recent work from Environment Agency commissioned research7. Linking the presence of invasive alien species ... Crassula helmsii (Australian swamp stonecrop).
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63
Invasive non-native aquatic plants | nidirect
https://www.nidirect.gov.uk/articles/invasive-non-native-aquatic-plants
This could be illegal and the plants could damage the environment ... Its scientific name is Crassula helmsii but it is also sold incorrectly as Crassula ...
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https://www.nidirect.gov.uk/articles/invasive-non-native-aquatic-plants
This could be illegal and the plants could damage the environment ... Its scientific name is Crassula helmsii but it is also sold incorrectly as Crassula ...
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64
Plant Positive - Natural Enterprise
http://www.naturalenterprise.co.uk/pages/projects/73-plant-positive
A new partnership combining Newport Rivers, the Environment Agency, Hampshire and Isle of Wight Wildlife Trust, ... New Zealand Pigmyweed (Crassula helmsii.
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http://www.naturalenterprise.co.uk/pages/projects/73-plant-positive
A new partnership combining Newport Rivers, the Environment Agency, Hampshire and Isle of Wight Wildlife Trust, ... New Zealand Pigmyweed (Crassula helmsii.
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65
Aquatic Weed Control Operation Best Practice Guidelines
https://nora.nerc.ac.uk/id/eprint/7963/1/BarrettSTR-W111-e-eN007963CR.pdf
visited every-Region in the Environment Agency to collect data:and results from .engineersj ... Crassula helmsii (Australian Swamp Stonecrop) :.
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https://nora.nerc.ac.uk/id/eprint/7963/1/BarrettSTR-W111-e-eN007963CR.pdf
visited every-Region in the Environment Agency to collect data:and results from .engineersj ... Crassula helmsii (Australian Swamp Stonecrop) :.
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66
Invasive Plant Species Incinerators - INCINER8
https://www.inciner8.com/specialist-waste/invasive-plant-species-incinerators
The removal of invasive (alien) plants has traditionally been done using chemicals. Recently the toxicity and environmental damage of these sprays has been ...
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https://www.inciner8.com/specialist-waste/invasive-plant-species-incinerators
The removal of invasive (alien) plants has traditionally been done using chemicals. Recently the toxicity and environmental damage of these sprays has been ...
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67
Invasive weed hi-res stock photography and images - Page 14
https://www.alamy.com/stock-photo/invasive-weed.html?page=14
Environment Agency clearing the Pennywort weed on the River Cam in Cambridge ... New Zealand Pigmyweed Crassula helmsii - highly invasive non-native aquatic ...
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https://www.alamy.com/stock-photo/invasive-weed.html?page=14
Environment Agency clearing the Pennywort weed on the River Cam in Cambridge ... New Zealand Pigmyweed Crassula helmsii - highly invasive non-native aquatic ...
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68
Reproduction of Crassula helmsii by seed in western Europe
http://www.aquaticinvasions.net/2016/AI_2016_Dhondt_etal.pdf
The amphibious plant species Crassula helmsii is a widely established and ... population-level factors (either genetic, environmental,.
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http://www.aquaticinvasions.net/2016/AI_2016_Dhondt_etal.pdf
The amphibious plant species Crassula helmsii is a widely established and ... population-level factors (either genetic, environmental,.
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69
Lookout for These Emerging Invasive Plants - PA DCNR
https://www.dcnr.pa.gov/GoodNatured/pages/Article.aspx?post=117
Swamp stonecrop (Crassula helmsii) is a wetland plant that can grow in mud, or partially submerged in still or flowing water.
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https://www.dcnr.pa.gov/GoodNatured/pages/Article.aspx?post=117
Swamp stonecrop (Crassula helmsii) is a wetland plant that can grow in mud, or partially submerged in still or flowing water.
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70
LFLT_New_Zealand_Pigmywee...
https://issuu.com/m.norris/docs/lflt_new_zealand_pigmyweedr_control
Crassula helmsii Further information may also be found on the Centre ... ... Contact the Environment Agency (England and Wales) or SEPA ...
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https://issuu.com/m.norris/docs/lflt_new_zealand_pigmyweedr_control
Crassula helmsii Further information may also be found on the Centre ... ... Contact the Environment Agency (England and Wales) or SEPA ...
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71
INVASIVE NON NATIVE SPECIES POLICY AND ACTION PLAN
https://democracy.newport.gov.uk/documents/s16630/Draft%20INNS%20Policy.pdf
New Zealand Pigmyweed or Australian Swamp-stonecrop (Crassula helmsii) ... normally suggested in the Environment Agency's Managing Japanese knotweed on ...
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https://democracy.newport.gov.uk/documents/s16630/Draft%20INNS%20Policy.pdf
New Zealand Pigmyweed or Australian Swamp-stonecrop (Crassula helmsii) ... normally suggested in the Environment Agency's Managing Japanese knotweed on ...
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72
Silverdale Country Park - Why is the water level in the Void so ...
https://m.facebook.com/SilverdaleCountryPark/photos/why-is-the-water-level-in-the-void-so-lowmany-people-have-asked-me-this-recently/1371059509697506/
This is done so that we can treat an invasive plant called Crassula helmsii (feel free to google it) which grows around the lake. If we don't ...
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https://m.facebook.com/SilverdaleCountryPark/photos/why-is-the-water-level-in-the-void-so-lowmany-people-have-asked-me-this-recently/1371059509697506/
This is done so that we can treat an invasive plant called Crassula helmsii (feel free to google it) which grows around the lake. If we don't ...
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73
Controlling Nuisance Aquatic Plants
https://terraqua.co.uk/control-nuisance-aquatic-plants/
... in or near water without agreement from the Environment Agency. ... Often mislabelled as Tillaea recurveor Tillaea helmsii, Crassula has driven rare ...
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https://terraqua.co.uk/control-nuisance-aquatic-plants/
... in or near water without agreement from the Environment Agency. ... Often mislabelled as Tillaea recurveor Tillaea helmsii, Crassula has driven rare ...
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74
Aquatic Weed Removal & Control - Invasive Weed Solutions UK
https://invasiveweedsolutions.co.uk/invasive-weeds/non-native/aquatics/
Australian Swamp Stonecrop (Crassula helmsii, also known as New Zealand Pigmy ... Act and the Environment Agency has issued guidelines for its control.
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https://invasiveweedsolutions.co.uk/invasive-weeds/non-native/aquatics/
Australian Swamp Stonecrop (Crassula helmsii, also known as New Zealand Pigmy ... Act and the Environment Agency has issued guidelines for its control.
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75
New Zealand Pigmyweed | INNS Mapper
https://ywt-data.org/inns-mapper/species/new-zealand-pigmyweed
Latin name: Crassula helmsii ; Key features: Submerged or above surface; Can form dense mats; Small, round, fleshy, bright green leaves arranged around stem in ...
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https://ywt-data.org/inns-mapper/species/new-zealand-pigmyweed
Latin name: Crassula helmsii ; Key features: Submerged or above surface; Can form dense mats; Small, round, fleshy, bright green leaves arranged around stem in ...
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76
Environmental Panorama - Portal Pick-upau
http://www.pick-upau.org.br/site_english/environmental_panorama/2007/2007.07.14/environmental_agency_urges_people.htm
Catherine Burbage - 10-Jul-2007 - Experts at the Environment Agency are urging people not to introduce ... Australian swamp stonecrop (Crassula helmsii)
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http://www.pick-upau.org.br/site_english/environmental_panorama/2007/2007.07.14/environmental_agency_urges_people.htm
Catherine Burbage - 10-Jul-2007 - Experts at the Environment Agency are urging people not to introduce ... Australian swamp stonecrop (Crassula helmsii)
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77
Prevention, Control and Eradication of Invasive Alien Species
https://www.epa.ie/publications/research/biodiversity/Research_Report_368.pdf
Working with local authorities and other agencies to tackle environmental crime by co-ordinating a ... invasive macrophytes: Crassula helmsii, Egeria densa,.
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https://www.epa.ie/publications/research/biodiversity/Research_Report_368.pdf
Working with local authorities and other agencies to tackle environmental crime by co-ordinating a ... invasive macrophytes: Crassula helmsii, Egeria densa,.
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78
Invasive Non-native species | Essex and Suffolk Rivers Trust
https://essexsuffolkrt.wordpress.com/projects/invasive-non-native-species/
Topmouth Gudgeon (Credit Matt Brazier - Environment Agency) ... Another example is New Zealand pygmyweed Crassula helmsii, it forms dense carpets over ponds ...
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https://essexsuffolkrt.wordpress.com/projects/invasive-non-native-species/
Topmouth Gudgeon (Credit Matt Brazier - Environment Agency) ... Another example is New Zealand pygmyweed Crassula helmsii, it forms dense carpets over ponds ...
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79
Managing Invasive Non-Native Species in Scotland's Water ...
https://www.sepa.org.uk/media/37362/managing-invasive-non-native-species_plan.pdf
Climate change is likely to have a major impact on biodiversity in the ... e.g. Australian swamp stonecrop (Crassula helmsii), Common cordgrass (Spartina.
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https://www.sepa.org.uk/media/37362/managing-invasive-non-native-species_plan.pdf
Climate change is likely to have a major impact on biodiversity in the ... e.g. Australian swamp stonecrop (Crassula helmsii), Common cordgrass (Spartina.
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80
Jonathan Newman - Google Scholar
https://scholar.google.com/citations?user=wAfletYAAAAJ&hl=en
Senior Policy Advisor, Chemicals Strategic Planning, Environment Agency - Cited by 2236 ... Photosynthetic carbon assimilation by Crassula helmsii.
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https://scholar.google.com/citations?user=wAfletYAAAAJ&hl=en
Senior Policy Advisor, Chemicals Strategic Planning, Environment Agency - Cited by 2236 ... Photosynthetic carbon assimilation by Crassula helmsii.
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81
PlantTracker data from 2012 onwards - GBIF
https://www.gbif.org/dataset/d75b0b4c-8f43-4bc2-8bcd-65f9e5419cd1
... Water Fern (Azolla filiculoides) New Zealand (Pigmyweed Crassula helmsii) ... The project was originally conceived to provide the Environment Agency ...
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https://www.gbif.org/dataset/d75b0b4c-8f43-4bc2-8bcd-65f9e5419cd1
... Water Fern (Azolla filiculoides) New Zealand (Pigmyweed Crassula helmsii) ... The project was originally conceived to provide the Environment Agency ...
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82
Invasive species | The official blog for the North York Moors ...
https://northyorkmoorsnationalpark.wordpress.com/tag/invasive-species/
New Zealand pigmyweed (Crassula helmsii) was introduced to Britain from Tasmania in 1911. By 1927 it was being sold as an “oxygenating plant” ...
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https://northyorkmoorsnationalpark.wordpress.com/tag/invasive-species/
New Zealand pigmyweed (Crassula helmsii) was introduced to Britain from Tasmania in 1911. By 1927 it was being sold as an “oxygenating plant” ...
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83
Using Natural Enemies against Exotic Weeds An ... - BCPC
https://www.bcpc.org/wp-content/uploads/2019/03/Shaw-BCPC-weeds-Review-2019.pdf
Crassula helmsii. Floating Pennywort. ○Conclusion ... environment. • Activities and expertise include ... origin may be safely released as classical agents ...
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https://www.bcpc.org/wp-content/uploads/2019/03/Shaw-BCPC-weeds-Review-2019.pdf
Crassula helmsii. Floating Pennywort. ○Conclusion ... environment. • Activities and expertise include ... origin may be safely released as classical agents ...
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84
Integrating expert knowledge at regional and national scales ...
https://neobiota.pensoft.net/article/89448/download/pdf/759425
Management Centre, Animal and Plant Health Agency, Sand Hutton, York, ... lifera as threatened by Crassula helmsii from three vice-counties.
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https://neobiota.pensoft.net/article/89448/download/pdf/759425
Management Centre, Animal and Plant Health Agency, Sand Hutton, York, ... lifera as threatened by Crassula helmsii from three vice-counties.
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85
Harmonia - Generalna Dyrekcja Ochrony Środowiska
http://projekty.gdos.gov.pl/files/artykuly/127051/Crassula-helmsii_grubosz-helmsa_EN_icon.pdf
Crassula helmsii is a native species in Oceania: Australia (New South Wales, ... other farmed and sold plants (Environment Agency 2003 – P).
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http://projekty.gdos.gov.pl/files/artykuly/127051/Crassula-helmsii_grubosz-helmsa_EN_icon.pdf
Crassula helmsii is a native species in Oceania: Australia (New South Wales, ... other farmed and sold plants (Environment Agency 2003 – P).
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86
Annual Report 2009 - National Biodiversity Data Centre
https://biodiversityireland.ie/app/uploads/2021/06/NBDC-Annual-Report-2009-ONLINE.pdf
state agencies to make more widely available ... Northern Ireland Environment Agency, the ... Crassula helmsii, Hydrocotyle ranunculoides.
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https://biodiversityireland.ie/app/uploads/2021/06/NBDC-Annual-Report-2009-ONLINE.pdf
state agencies to make more widely available ... Northern Ireland Environment Agency, the ... Crassula helmsii, Hydrocotyle ranunculoides.
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87
Invasive Plants - Michigan Natural Features Inventory
https://mnfi.anr.msu.edu/invasive-species/AquaticsFieldGuide.pdf
Swamp stonecrop / Crassula helmsii. ... and Environment (DNRE), Water Bureau for funding this field guide ... land manager or other appropriate agency.
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https://mnfi.anr.msu.edu/invasive-species/AquaticsFieldGuide.pdf
Swamp stonecrop / Crassula helmsii. ... and Environment (DNRE), Water Bureau for funding this field guide ... land manager or other appropriate agency.
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88
Assessment of risks to Norwegian biodiversity from the import ...
https://vkm.no/english/riskassessments/allpublications/assessmentofriskstonorwegianbiodiversityfromtheimportandkeepingofaquariumandgardenpondplants.4.2375207615dac0245aee2b61.html
Among the possible negative impact on Norwegian biodiversity resulting from the aquatic plant species Crassula helmsii and Myriophyllum ...
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https://vkm.no/english/riskassessments/allpublications/assessmentofriskstonorwegianbiodiversityfromtheimportandkeepingofaquariumandgardenpondplants.4.2375207615dac0245aee2b61.html
Among the possible negative impact on Norwegian biodiversity resulting from the aquatic plant species Crassula helmsii and Myriophyllum ...
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89
City and County of Swansea, Housing and Regeneration Dept
https://www.tcd.ie/research/simbiosys/images/Sean%20Hathaway%20IAS.pdf
Environment-transportation and streetscene ... •1991 Inter Agency Knotweed grp ... Australian Swamp Stonecrop Crassula Helmsii.
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https://www.tcd.ie/research/simbiosys/images/Sean%20Hathaway%20IAS.pdf
Environment-transportation and streetscene ... •1991 Inter Agency Knotweed grp ... Australian Swamp Stonecrop Crassula Helmsii.
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90
INNS Project Intro Blog - Wessex Rivers Trust
https://www.wessexrt.org.uk/innsprojectintroblog.html
... partners including the Environment Agency, local councils, landowners, ... New Zealand Pygmy Weed a.k.a. Australian Stone Weed Crop (Crassula helmsii).
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https://www.wessexrt.org.uk/innsprojectintroblog.html
... partners including the Environment Agency, local councils, landowners, ... New Zealand Pygmy Weed a.k.a. Australian Stone Weed Crop (Crassula helmsii).
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91
WASHINGTON STATE REGISTER - WA.gov
https://app.leg.wa.gov/documents/laws/wsr/2004/14/04-14-104.htm
... including: Crassula helmsii, Sagittaria platyphylla, Trapa bicornus, ... The Washington State Department of Agriculture is not a listed agency under RCW ...
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https://app.leg.wa.gov/documents/laws/wsr/2004/14/04-14-104.htm
... including: Crassula helmsii, Sagittaria platyphylla, Trapa bicornus, ... The Washington State Department of Agriculture is not a listed agency under RCW ...
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92
River Avon Non Native Invasive Plant Forum Strategic Plan
https://secure.toolkitfiles.co.uk/clients/23271/sitedata/files/Avon%20Invasive%20Plants%20Strategic%20Plan_Final.pdf
representatives from the Environment Agency,. Natural England, the Wildlife Trusts ... Australian Swamp Stonecrop / New Zealand Pigmyweed (Crassula helmsii).
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https://secure.toolkitfiles.co.uk/clients/23271/sitedata/files/Avon%20Invasive%20Plants%20Strategic%20Plan_Final.pdf
representatives from the Environment Agency,. Natural England, the Wildlife Trusts ... Australian Swamp Stonecrop / New Zealand Pigmyweed (Crassula helmsii).
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93
wood-wise-invasive-species.pdf - Woodland Trust
https://www.woodlandtrust.org.uk/media/1810/wood-wise-invasive-species.pdf
to the changing climate than native species and ... pygmyweed), Crassula helmsii ... Environment Agency has approved 2, 4-D amine and.
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https://www.woodlandtrust.org.uk/media/1810/wood-wise-invasive-species.pdf
to the changing climate than native species and ... pygmyweed), Crassula helmsii ... Environment Agency has approved 2, 4-D amine and.
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94
Invasive Species - Arbtech
https://arbtech.co.uk/ecology-surveys/invasive-species/
Non-native species are a species introduced by human agency indirectly or directly ... New Zealand pigmyweed Crassula helmsii; Parrot's-feather Myriophyllum ...
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https://arbtech.co.uk/ecology-surveys/invasive-species/
Non-native species are a species introduced by human agency indirectly or directly ... New Zealand pigmyweed Crassula helmsii; Parrot's-feather Myriophyllum ...
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95
Biodiversity Strategy and Action Plan for the Environment ...
http://ea-lit.freshwaterlife.org/archive/ealit:399/OBJ/19000572.pdf
The Environment Agency (Thames Region) Biodiversity Strategy and Action Plan ... in Buckinghamshire but here it is threatened by Swamp Stonecrop (Crassula.
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http://ea-lit.freshwaterlife.org/archive/ealit:399/OBJ/19000572.pdf
The Environment Agency (Thames Region) Biodiversity Strategy and Action Plan ... in Buckinghamshire but here it is threatened by Swamp Stonecrop (Crassula.
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96
Evaluating the effectiveness of hot water as a decontamination ...
https://canalrivertrust.org.uk/refresh/media/thumbnail/29789-evaluating-the-effectiveness-of-hot-water-as-a-decontamination-method-to-prevent-the-accidental-movement-of-aquatic-invasive-species.pdf
Hydrocotyle ranunculoides and Crassula helmsii) and three animals ... 4 million recreational anglers in the UK (Environment Agency 2004) and.
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https://canalrivertrust.org.uk/refresh/media/thumbnail/29789-evaluating-the-effectiveness-of-hot-water-as-a-decontamination-method-to-prevent-the-accidental-movement-of-aquatic-invasive-species.pdf
Hydrocotyle ranunculoides and Crassula helmsii) and three animals ... 4 million recreational anglers in the UK (Environment Agency 2004) and.
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