First results of a study on protection and increase of predatory insects, conducted in citrus farms (Bella Vista and Lavalle area, province of Corrientes, Argentina)

Abstract

In monthly surveys carried out over four years (October 1961 - September 1965), the species of predatory insects, the number of plants examined and the distribution of predators according to the plants observed were established for each study area. Coupling is taken into account; the state of egg, larva and the state of adult, the degree of density and the number of cases observed in each of the states of ontogenesis mentioned, plus the cases corresponding to mating. The biological material of which one made the inventory denounces the following insects Coccinelidae (Coleoptera), Chrysopidae (Neuroptera) and Reduviidae (Hemiptera).