River Perry Water Watch, based in Baschurch, is pulling up the invasive plant from their riverbanks degrades them and damages biodiversity.
Scientists will spend the next three years looking at the best, environmentally-friendly, ways to deal with the pest.
The Duchy of Cornwall does not want Pacific oysters, classed as invasive, farmed on land in Devon.
Residents are being invited to a 'Balsam bash' to help stop the spread of Himalayan balsam plants.
The first worker hornets of the year in Jersey are discovered as residents urged to avoid nests.
After the invasive species was found in Northern Ireland last year, entomologists are on high alert.
BBC Guernsey explains the difference between Asian hornets and other insects, as sightings rise.
Traps have been deployed to attract and capture queens early in the season.
More than 400 traps were laid across the island in a £4.5m project which featured a specially-trained detection dog called Woody.
