Word: quackgrass
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Dates: during 1940-1949
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British scientists found last year that IPC killed certain grain plants. U.S. scientists took the hint and tried the stuff on quackgrass, alias witchgrass, one of the peskiest weeds in the northern U.S. As little as 10 lbs. an acre, Agriculture reports, does the deed, killing even the nine-lived underground stems (stolons) which generations of farmers have grubbed from the soil by hand...
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