Noxious: Montana’s Battle With Spotted Knapweed, and What Birders Can Do
10,000 Birds
JULY 25, 2014
Spotted knapweed arrived in Montana in the 1920s, most likely in a batch of alfalfa seed or perhaps on the creep down from western Canada, where it may have come ashore in the ballast of ships. Since then, it has been pulled and plucked, sprayed and dusted, mowed and set on fire. Nonetheless, this week will be chock full of invasive species.
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