Abstract
Laboratory tests showed that Orius insidiosus (Say) (Hemiptera: Anthocoridae) and the common damsel bug, Reduviolus americoferus (Carayon) (Hemiptera: Nabidae), were able to locate and destroy eggs of the potato leafhopper, Empoasca fabae (Harris) (Homoptera: Cicadellidae). O. insidiosus appeared to be the more efficient egg predator. The average daily mortality of leafhopper adults and nymphs attributed to the feeding of the coccinellids, Hippodamia convergens Guerin-Meneville and Coccinella novemnotata Herbst. (Coleoptera: Coccinellidae), the common green lacewing, Chrysopa carnea Stephens (Neuroptera: Chrysopidae), and R. americoferus ranged from 1.9 to 3.2, with the exception of C. carnea adults, which averaged 0.4 nymphs.
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