Occurrence of Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae) parasitizing Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) in Brazil

Abstract

The parasitism of Bemisia tabaci (Genn.) biotype B nymphs on cotton plants was observed during a research on resistance of cotton genotypes to this whitefly. The experiment was set in a greenhouse at the Experimental Station of the Instituto Agronômico (IAC), in Campinas, São Paulo State, Brazil. Samples of the parasitized nymphs were collected and maintained in laboratory to monitor the parasitism and obtain the adult parasitoids. A total of 129 adult parasitoids were obtained, including one Encarsia inaron (Walker), 13 En. lutea (Masi), and 115 Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae). This is the first report of Er. mundus in Brazil.

Eficácia de controle químico sobre >i<Bemisia tabaci>/i< MEAM1 (Genn.) (Hemiptera: Aleyrodidae) e a transmissão do vírus do mosaico dourado do feijoeiro

“…A doença do mosaico dourado do feijoeiro, ou Bean golden mosaic virus (BGMV) caracteriza-se pelo mosaico amarelo intenso em todo o limbo foliar, nanismo, encurtamento de entrenós, perda de dominância apical e brotamento das gemas axilares (FURLAN, 2004). Além disso, as plantas infectadas com o vírus podem apresentar intensa clorose foliar e atrofiamento e as vagens deformadas (GALVEZ & MORALES, 1994 OLIVEIRA et al, 2003;BALDIN et al, 2011;LOURENÇÃO et al, 2014;CAVALCANTE et al, 2015).…”