Parasitóides de cerconota anonella (Sepp., 1830) (Lep.: Oecophoridae) em gravioleira (Annona muricata L.)

Abstract

The quantification of natural enemies actually living within a given crop is very important, because it helps in pest control decisions. Therefore a survey of natural enemies of Cerconota anonella (Sepp.) was carried out in a soursop crop between March, 1997 and April, 1998 at Maceió, AL (lat.9°S, long. 35°W), Brazil. The parasitism was defined by the ratio: the number biological forms of natural enemies and the biological forms of pests and parasitoids. The insects observed, in order of incidence, were: Apanteles sp. (Hymenoptera: Braconidae), Rhysipolis sp. (Hymenoptera: Braconidae) e Xiphosomella sp. (Hymenoptera: Ichneumonidae). The lowest percentage of parasitism was found in October 1997 (6.6%) and the highest one in January 1998 (80.27%), with an annual average of 38.1%.