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Comparative biology of the whitefly Trialeurodes vaporariorum West. Hemiptera - Homoptera: Aleyrodidae on soybean and bean cultivars. Biologia comparada de Trialeurodes vaporariorum West. Ostenildo R. Campos I ; Wilson B. Crocomo I ; Adriana M. Labinas II. I Depto. Lageado, C. With the development of greenhouse grown crops, the whitefly Trialeurodes vaporariorum West. Aiming at verifying the effect of host on the development of this species, the biology of the whitefly was studied on bean Phaseolus vulgaris L.
The biological parameters assessed were duration, viability and number of nymphal instars; male and female longevity, oviposition period, number of eggs per female and sex ratio; egg viability and incubation period and the life cycle duration.
Based on data obtained, fertility life tables were constructed to allow a comparative analysis of the effect of cultivars on the biological development and consequent population growth of this species. Bean Phaseolus vulgaris L. Bean production in Brazil is limited by several factors mainly climate, diseases and insect pests. Soybean is a very favorable whitefly host, where the whitefly population increases prior to its moving to adjacent bean fields Almeida et al.
They also found it in ornamental and weed plants. Costa reported the first BGMV occurrence in Brazil in , but considered it of little importance. Usually, the low productivity of infected plants is due to the dropping of flowers and poor pod formation Blair et al.
Bedford et al. Soybean cultivar affects whitefly oviposition and young leaves are markedly preferred for feeding Rossetto et al. Most researchers have studied the whitefly nymph stages. However due to difficulties in observing longevity and oviposition parameters few papers have reported data on the adult stage. The most studied whitefly species is B. Female longevity was The number of eggs per female was The sex ratio was In studies by Azab et al.