Initial Survey of Arthropod Predators of the European Red Mite in South-Central Pennsylvania1

Abstract

The study was conducted in preparation for intensive examination of some of the principal predators of the European red mite, Panonychus ulmi (Koch), under a USDA, Agr. Res. Serv. grant. The study was necessary, since no list of predators of P. ulmi, in Pennsylvania had previously been compiled.