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A lagarta-enroladeira Bonagota cranaodes (Meyrick) é nativa da América do Sul, sendo importante praga em macieira no Brasil. O controle é realizado exclusivamente com inseticidas, e o controle biológico é pouco explorado, motivo pelo qual há necessidade de conhecer os inimigos naturais da lagarta-enroladeira. O objetivo deste trabalho foi verificar a ocorrência de parasitóides de ovos de B. cranaodes. Os levantamentos foram realizados de janeiro de 2000 a novembro de 2001, coletando posturas em folhas de macieiras, Hortência (Hydrangia macrophyla) e Hera (Hedera sp.), em Fraiburgo, Santa Catarina. No período, foram observadas 6,6% de posturas parasitadas, sendo que, destas, 22,3% dos ovos estavam parasitados. Os parasitóides foram identificados como Trichogramma pretiosum Riley. Este é o primeiro registro de ocorrência de T. pretiosum parasitando ovos de B. cranaodes em pomares comerciais de macieira no Brasil. 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

revista brasileira de fruticultura

Ocorrência de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) em ovos de Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) em macieira