Apple leaf roller, Bonagota cranaodes (Meyrick) is native from South America and it is one of the most important apple pests in Brazil. Its control is exclusively done by insectides and biological control isn't frequently applied. In this way is necessary to know the parasitoids associated with apple leaf roller. The objective of this study was to detect the parasitism occurrence on B. cranaodes eggs in the State of Santa Catarina (Brazil). From January 2000 to November 2001; 1,700 masses were collected on leaves of apple tree, Hydrangea macrophyla and Hedera sp. in Fraiburgo, Santa Catarina State. During this period egg parasitism was registered in 6.6% of masses where 22.3% of the eggs suffered parasitism. The parasite identified was Trichogramma pretiosum. This is the first record of parasitizing of Trichogramma pretiosum in B. cranaodes eggs in commercial apple orchards in Brazil.
Biological control; egg parasitoid; apple leaf roller
