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[0] Systems where used effectively [1] Most of the undeveloped world, volunteer labor pools [2] Heavily-infested systems [3] Widespread use with chronic plant problems [4] Useful for chronic plant problems where disposal of plants is problematic [6] Used extensively in the Pacific Northwest and British Columbia, with mixed results [5] 
Useful for smaller nuisance plant populations in which plant density is moderate
LAKE WEEDS - Weeders Digest Articles
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