Abstract
Abundances of the banded cucumber beetle, Diabrotica balteata LeConte, varied from year to year, making seasonal treatment programs impracticable. DDT and the ensuing insecticides which were developed were more effective than were calcium arsenate+nicotine sulfate and rotenone. Parathion was widely and effectively used from about 1950 to about 1957. Newer toxicants endosulfan, Kepone®(decachlorooctahydro-1,3,4-metheno-2 H -cyclobuta [ cd ] pentalen-2-one) and Sevin® (1-naphthyl N -methylcarbamate) were developed and were found effective. Abundances of beetles were controlled, restricted, localized, or managed on tomatoes in 1959 on treatment plots. A relationship of beetle abundance and yield was observed in which, as the beetle abundance increased, the numbers of fruits harvested decreased.
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