@JackBaddams Killer shrimp, demon shrimp, zebra mussels, signal crayfish plague, crassula helmsii...all could be present in that canal. We have to stop the spread.
@mxmorggo crassula helmsii? maybe?
One for @Plant_Alert: New Zealand Pygmyweed (Crassula helmsii), considered one of the most invasive non-native plants in the U.K. covered by EU regulation on Invasive Alien Species, taking over a pond on Stoneleigh Park. https://t.co/SCITfZFL6h
2nd day at @PrestonMontford and we started the day clearing reeds and invasive New Zealand Pigmyweed (Crassula helmsii) from the ‘Mitigation Pond’. Followed by tidying up and harvesting a Hazel hedge. Thanks very much for having us and for the invertebrate ID training too! https://t.co/Z0txSOiZsf
Baldellia ranunculoides growing in a damp dune slack at Ynys Las with Samolus valerandi and Hydrocotyle vulgaris. No sign of the Crassula helmsii which had troubled the area prior to herbicide + polythene treatment by @NatResWales https://t.co/5vd3PFVSzo
Worrying to see invasive Crassula helmsii taking over parts of the Egleton reserve at Rutland Water. Lagoon 5 particularly badly affected. https://t.co/L3aVAq6BRV
@freshwaterbio @SCRiversTrust Was surprised to find that Crassula helmsii aka New Zealand pygmyweed is uncommon in NZ and at risk in 2009
@ARGroupsUK @ARC_Bytes this is how you deal with Crassula helmsii Drain, scoop out and bury!! https://t.co/H8YbtfyZnP
@arc_bytes @argroupsuk @essexarg Er we have an issue here with Crassula helmsii. #nonnatives #crassula https://t.co/I4c69lu88a
The invasive New Zealand Pigmyweed is even widespread on Dungeness NNR now. Crassula helmsii http://t.co/STiPlk90bs
New Zealand Pigmyweed, Crassula helmsii, invasive alien clogging up & smothering the ditches at Castle Water, Rye. http://t.co/0wGRlrRZ5i
@EdRomeijn @InvasieveExoten @VroegeVogels Watercrassula, Crassula helmsii, in het mediacircus van deze week horrorplantje genoemd
New Zealand Pigmyweed, Crassula helmsii, an alien invader in a dew pond, South Downs. http://t.co/ujFC3jBWrC
http://t.co/Iw7L2Zg5pH - Аукцион. 24.04.2014 22.00 Киев. Украина. Crassula helmsii (Толстянка… http://t.co/YwNEg4gOv5
@ARGroupsUK @PondRiverStream @ARC_Bytes @EssexARG Is it New Zealand pigmyweed, Crassula helmsii, leaves on the left?
Does Crassula helmsii impact #biodiversity #nonnative #invasives #kent #isleofsheppey
Control of crassula helmsii and Ludwigia peploides invasive plants. Johan van Valkenburg
control of japanese knotweed, Crassula Helmsii and Parrot's feather without glyphosate is virtually impossible without glyphosate
Crassula helmsii, New Zealond Pigmyweed @KentWildlife Holborough 050616 late for #wildflowerhour https://t.co/NsUQqDD7ls
@Bannut_Gardener @SarraceniaDude @CrawliesWithCri interesting article there. The INNS that gives us sleepless nights is Crassula helmsii
