Thursday, August 26, 2010

Noxious Weeds

Yesterday I wrote about my experience so far with velvetleaf.  This weed is classified as being noxious in British Columbia and several US states.  To be classified as a noxious weed the plant has to cause harm to human via toxicity or cause an agricultural loss however every municipality has their own definition of noxious weeds.  In some localities a weed (eg. water hyacinth) can be classified

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