So what's the problem?
Japanese knotweed (Fallopia japonica, also known as Reynoutria japonica and Polygonum cuspidatum) and giant knotweed (Fallopia sachalinensis, also known as Reynoutria sachalinensis) are rhizomatous perennial plants native to eastern Asia and were introduced into Europe as ornamental and fodder plants. Today, both species as well as hybrids between the two (Fallopia × bohemica) are considered to be among the most serious exotic weeds in Europe, particularly along riverbanks. All three taxa are presumed to spread primarily by vegetative means.
What is this project doing?
In March 2004, a project started at CABI’s centre in Switzerland to assess the ecological and economic impact of exotic invasive knotweeds in Europe. The research focusses on various aspects of Fallopia taxa in Europe (genetics, phenotypic plasticity, seed production), on the effect of climate change on the likelihood of sexual reproduction, and on the impact of Fallopia spp. on below- and above-ground communities and energy flow in natural habitats.
Results so far
Address: Bakeham Lane, Egham, Surrey, TW209TY, United Kingdom
Tel: +44 (0)1491 829037
Address: Rue des Grillons 1, CH-2800 Delemont, Switzerland
Tel: +41 (0)32 4214877
Tel: +41 (0)32 4214876
PRATIQUE (Enhancing pest risk analysis techniques)
Unknotting Canada's knotweed problem
Researching safe and sustainable ways to control broad leaved docks
Controlling Japanese knotweed in Great Britain
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