ABSTRACT
The honeydew moth, Cryptoblabes. gnidiella, is an important pest on grapevine orchards, in Bento Gonçalves, state of Rio Grande do Sul, Brazil. This study was aimed to verify the parasitism on immatures stages of C. gnidiella. Samples of grapes and branches in two orchards of Vitis vinifera, managed with and without insecticide treatment, were carried out from July/2004 to July/2005. Biweekly observations revealed, at most, 100 larvae and 100 pupae of C. gnidiella from each orchard area. The immature stages were kept in an acclimatized chamber (25 ± 1º C) until the emergence of adults or parasitoids. Five species of Hymenoptera were found associated with C. gnidiella: Apanteles sp. (Braconidae), Perilampidae, Pimpla croceiventris (Cresson) (Ichneumonidae), Venturia sp. (Ichneumonidae) and Macrocentrus sp. (Braconidae). Venturia sp. was the most abundant parasitoidin the two orchards. More species were observed in the orchard without application of insecticides.
KEY WORDS
Cryptoblabes
; honeydew moth; parasitism; vineyards