Word: tox
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Dates: during 1980-1989
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Scientists are also using other techniques. In California, larvae-eating minnows are regularly placed in mosquito-breeding ponds. In New Orleans, U.S. Agriculture Department researchers along with local experts have been releasing a large nonbiting mosquito nicknamed Big Tox (after its scientific name, Toxorhynchites ambionensis), whose larvae dine on the larvae of smaller biting mosquitoes. Scientists have also had success with bacterial warfare: applying a larvae-killing toxin from the soil bacterium Bacillus thuringiensis israelensis (which was discovered in Israel). But BTI is expensive, must be applied directly to a breeding site, and could encourage proliferation of BTi-resistant mosquitoes...