To ask the Secretary of State for Environment, Food and Rural Affairs, what recent assessment he has made of the effectiveness of measures to control the spread of Japanese knotweed.
Defra recognises the impacts caused by invasive species, including Japanese knotweed. Japanese knotweed is listed on Schedule 9 of the Wildlife and Countryside Act 1981. This makes it an offence to cause Japanese knotweed to grow in the wild. In England G...
Japanese Knotweed: Weed Control