PARASITOIDS ASSOCIATED WITH Bonagota cranaodes (MEYRICK, 1937) (LEPIDOPTERA: TORTRICIDAE) IN APLLE ORCHARDS

摘要

A survey of parasitoids associated with apple leafroller Bonagota cranaodes and the level of parasitism was evaluated in commercial apple orchards in Vacaria, RS, Brazil (28?o30'S/50?o54W) by collecting eggs, larvae and pupae from January to June, 1997. Three species of parasitoids (Apanteles sp, Earinus sp. and Itoplectis brasiliensis) were found associated with B. cranaodes larvae and pupae. I. brasiliensis was the most frequent specie, with 51.7 % of insects collected. The average of parasitism was 1.7 %, with maximum of 6.7 % in the first week of May. No parasitoids were found associated with B. cranaodes eggs. Mortality caused by parasitoids was not considered an important agent of control of the apple leafroller in commercial apple orchards of southern Brazil.