Cookies on CABI

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

Continuing to use means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

Search this site
Sign up for the CABI e-zine Newsletter
Improving lives by solving problems in agriculture and the environment

Japanese Knotweed Alliance launches new-look website

Japanese Knotweed Alliance launches new-look website

19 November 2014 – The Japanese Knotweed Alliance, of which CABI is a partner, today launched its new-look website. With updated content, design and navigation, the website makes it even easier to find information about the Alliance’s research of biological or natural control of Japanese knotweed in Great Britain:

Japanese knotweed is one of Great Britain’s most destructive non-native, invasive weeds. It can grow more than a metre a month and is famed for pushing through tarmac, concrete and drains. Its effect on native species is often devastating, as it out-competes indigenous species covering large tracts of land to the exclusion of the native flora and associated fauna.

In 2001, a consortium of partners were brought together to form a Japanese knotweed project management board. The aim of the board was to oversee a scientific research programme, which examined the potential for biological or natural control of Japanese knotweed in Great Britain. CABI was contracted to undertake research on behalf of the project board. CABI scientists have been conducting research into potential natural control agents to combat Japanese knotweed since 2000. This work entailed the collection, identification and selection of Japanese knotweed's natural enemies, like the sap-sucking psyllid Aphalara itadori seen in the picture above. This psyllid is capable of causing significant damage to the target weed. Potential agents were assessed in a Defra-licensed quarantine facility and all work was carried out according to international protocols.

For the latest progress information on Japanese knotweed, see: ‘Progress with weed biocontrol projects

For more information about CABI’s work to control the spread of non-native invasive species, see our case studies and controlling invasive species.

For all our latest stories, read our news.

Woody weeds in East Africa

Many exotic trees and shrubs have been introduced into Africa and become destructive invasive species. They're reducing native biodiversity and limiting the livelihoods of those that live in rural communities. CABI is trying to mitigate these impacts in East Africa by generating and sharing knowledge on their effects and finding ways that they can... >>

Giving dyer’s woad the blues

Dyer’s woad is an ancient source of blue dye and was grown as a textile dye crop in Europe and Asia for centuries. It was introduced to North America by early colonists, but escaped cultivation. Today, it is recognized as a serious weed in the western USA. One reason for its impact is the absence of the natural enemies that keep it in check in its... >>