Laboratory studies on insect predators of potato leafhopper eggs, nymphs, and adults [Empoasca fabae, Orius insidiosus, Reduviolus americoferus, Hippodamia convergens, Coccinella novemnotata, Chrysopa carnea, natural control]

Laboratory tests showed that Orius insidiosus (Say) (Hemiptra: Anthocoridae) and the common damsel bug, Reduvioulus americoferus (Carayon) (Hemiptra: 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.