Pest Photo

John Ruter, University of Georgia, Bugwood.org

Japanese knotweed

Polygonum cuspidatum

Japanese knotweed (Polygonum cuspidatum) is an invasive plant. It was first detected in West Virginia in 1952.

Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation.

For more information about this plant pest, see the CABI data sheet.
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