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O objetivo deste trabalho foi avaliar a suscetibilidade de diversos genótipos de feijão ao vírus-do-mosaico-dourado (VMDF), transmitido pela mosca branca (Bemisia tabaci). A semeadura foi realizada na época da seca e das águas, com e sem aplicação do inseticida granulado Aldicarb (3,0 kg ha-1 do i.a.) no sulco de semeadura. O delineamento experimental utilizado foi o de blocos casualizados disposto em esquema fatorial 14x2, representado por genótipos e inseticida, respectivamente, com quatro repetições. A maior infestação de mosca-branca e incidência do vírus ocorreu na época da seca, causando prejuízos à produção do feijoeiro. Os genótipos apresentaram diferentes graus de suscetibilidade ao vírus e ao inseto vetor. Os genótipos mais tolerantes foram IAPAR 57, IAPAR 65, IAPAR 72, Ônix, Aporé e 606 (5)(214-17). A aplicação do inseticida sistêmico controla o vetor em ambas as épocas de cultivo, proporcionando aumentos da produtividade. The objective of this work was to evaluate the susceptibility of common bean genotypes in relation to the golden mosaic virus, transmitted by the whitefly (Bemisia tabaci). The genotypes were cultivated in dry and water growing seasons, with and without application of the granulated systemic Aldicarb insecticide (3.0 kg ha-1 of a.i.). The experimental design was a randomized blocks in a 14x2 factorial scheme, represented by the genotypes and insecticide application, respectively, with four replications. The highest whitefly infestation and golden mosaic virus incidence occurred on dry growing season, and caused reduction on bean yield. The genotypes presented different degrees of susceptibility to the mosaic virus and to the vector insect. The most tolerant genotypes were IAPAR 57, IAPAR 65, IAPAR 72, Ônix, Aporé and 606 (5)(214-17). Insecticide application controlled the vector insect in both growing seasons, and provided yield increment

Suscetibilidade de genótipos de feijão ao vírus-do-mosaico-dourado