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USDA. APHIS. National Wildlife Research Center.
Managers often struggle to calculate the ecological and economic costs associated with invasive species. Yet, knowing these impacts can boost support and understanding for invasive species management. In a new book chapter (PDF | 343 KB), NWRC economist Dr. Stephanie Shwiff and colleagues describe how economists determine costs of both primary and secondary impacts from invasive species and how these translate into jobs and revenue in regional economies.
Weed Science Society of America.
What losses would corn and soybean growers experience if they were forced to eliminate herbicides and other control techniques from their weed management toolbox? A team of experts with the Weed Science Society of America (WSSA) found that in the U.S. and Canada, about half of both crops would be lost to uncontrolled weeds, costing growers about $43 billion annually.
Google. YouTube; Wisconsin First Detector Network.