Some Observations Upon the Biology and Control of the Potato Leafhopper(Empoasca FabaeHarris

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Abstract
The potato leafhopper, Empoasca Fabae, under natural conditions in the field is able to complete its life cycle upon a number of wild and cultivated host plants. The type of injury is specific for different plants. In Ohio the bush bean seems to bc the early prefcrred cultivated host. Eggs are laid in the field as early as May 20 on beans. The adults do not migrate to potato until about one month later. Four distinct seasonal broods have been reared during 1926 and 1927. Preoviposition period for 90 pairs in two seasons gave an average of slightly over six days. The average incubation period was 9.9 days. One mating is sufficient for the life of the normal female. Control on bean was most easily accomplished by oleo resin of pyrethrum extract, Japanese beetle formula, but this may be diluted to a 1 to 300 strength and still give economic control.

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