Exotic Pest Reporting
Barbara Tokarska-Guzik, University of Silesia, Bugwood.org
Giant knotweed (Fallopia sachalinensis) is an invasive plant. It is a native of Japan and was first detected in Eastern USA in 1894.
Giant knotweed is an herbaceous perennial, strongly rhizomatous, growing over 12 feet tall. Once established, giant knotweed spreads by rhizomes, enabling this species to dominate and out compete native or beneficial plants. Research indicates that giant knotweed produces allelochemicals from the roots, which aids in the aggressiveness and rapid colonization strategy.
03/20/2020 - State adds 6 new noxious weed to list
03/19/2020 - Province seeks input on 13 invasive species
12/18/2019 - State awards $3.6M for invasive species projects
10/15/2019 - Nelson to remove invasive knotweed
07/22/2019 - Groups combating the spread of knotweed
09/06/2018 - 5 invasive plants to watch out for in Michigan
07/18/2018 - Knotweeds: thugs of the invasive plant world
08/09/2017 - Proposed ordinance targets bamboo growth
08/04/2017 - Noxious weeds continue to be constant battle
07/26/2017 - Help rid Fort Collins of noxious weeds
09/24/2015 - War on Weeds Continues - The Chronicle: Home