Word: ageratum
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Dates: during 1970-1979
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...next stage of growth, and Martin Jacobson has applied for a patent for a juvenile hormone that affects house, stable and face flies, some mosquitoes and the fire ant. Taking a different approach, Entomologist William Bowers, of the New York State Agricultural Experiment Station, has isolated two substances from ageratum, a flowering plant, that interfere with an insect's production of juvenile hormones. When these antihormones are applied to immature cotton stainers and Mexican bean beetles, the insects grow into sterile adults. Colorado potato beetles treated with the chemical enter a hibernation from which they never emerge...
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