Word: picloram
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Dates: during 1970-1979
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Cheery "Blue." The three main defoliants, each cheerily known by the color of the band on its container, do their job with convincing efficiency. "Blue" contains arsenic and burns the juices out of narrow-leaf grasses and rice. "White," a mixture of a persistent chemical called Picloram and 2,4-di-chlorophenoxyacetic acid, causes leaves to shower from trees within weeks. Strongest and most heavily used is "Orange," a mixture of 2,4-D and 2,4,5-tri-chlorophenoxyacetic acid, whose dangers were widely publicized last winter in a New Yorker article by Thomas Whiteside. Last month...
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