+ Alien weeds are taking control of our parks and wild lands. Imported plants like purple loosestrife, Japanese knotweed, Lamium, thorny Himalayan blackberry bushes and English ivy, all have no natural enemies here, and thrive in our environment. Volunteers are making efforts to beat them back, but there is so much of the stuff that careful targeting of species and area is all that can be done. [Vancouver Courier]
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