Word: larva
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Dates: during 1970-1979
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...More DDT. Chief defoliator is the two-inch-long larva of the gypsy moth, a fuzzy brown caterpillar with blue and red spots that daily consumes one square foot of tree leaves (but not farm crops). Almost any kind of tree leaf from maple and pine to magnolia is meat for its mandibles. What makes the gluttonous insect so Jiard to control is that it has lacked natural enemies. It was imported from Europe to Massachusetts in 1869 by Leopold Trouvelot, a misguided naturalist who hoped to crossbreed the hardy moths with silkworms and start a new textile industry. Instead...
...other discovery was essentially an accident. Williams' group found that a European bug would grow fairly well in the Bio Labs up until the last larval stage. Then instead of becoming an adult, it would become a giant larva and eventually die without reproducing...