OCORRÊNCIA DE Gynandrobrotica caviceps adumbrata Bech. (COLEOPTERA: GALERUCINAE) NA CULTURA DA SOJA EM PIRACICABA, SP

Abstract

A presença de Gynadrobrotica caviceps adumbrata Bech. foi observada durante as safras de 1990/91 e 1991/92, infestando e danificando folhas de soja, em Piracicaba, SP. Este é o primeiro relato sobre este coleóptero danificando soja no Brasil.<br>During the croping seasons of 1990/91 and 1991/92 the presence of Gynadrobrotica caviceps adumbrata Bech., was observed infesting and promoting damage on soybean leaves in Piracicaba, SP. This is the first report on this beetle damaging soybeans in Brazil

Potential of soybean genotypes as insect resistance sources

“…Losses in soybean amount to 5% (US$ 281 million), corresponding to the third-highest value among the most insect-injured crops. Soybean is attacked by several insect species; noteworthy are stink bugs that suck the pods (Piezodorus guildinii, Nezara viridula and Euschistus heros) (Rossetto et al 1981a) and leaf-chewing insects (caterpillar, Anticarsia gemmatalis; and small-sized beetles, Cerotoma arcuata, Diabrotica speciosa, Colaspis sp., Diphaulaca viridipennis and Gynandrobrotica cavipes adumbrata) (Rossetto et al 1981b, Massariol et al 1979, Rossetto and Nagai 1980, Lourenção and Miranda 1986, Pinheiro and Vello 1997. Historically, insect infestations in crops were suppressed by chemical products.…”