Methods for the Field Release of Insect Parasites and Predators
ABSTRACT BIOLOGICAL control of insect pests through the laboratory mass production and field release of insect parasites and predators offers a promising alter-native to chemical insecticides. However, to be accept-able, biological control must not only be technically sound but must be economically competitive with other methods. Automated techniques which allow rapid and efficient releases of insect parasites and predators will be needed in many cases to ensure economic feasibility. In this paper we review nearly 10 yr of research into the techniques for releasing parasites and predators, much of which is previously unpublished. In addition, the methods and equipment used in the mechanical release of several species of beneficial insects are illus-trated, and some of the biological and engineering aspects of insect releases are discussed.