ABSTRACT The silverleaf whitefly Bemisia tabaci biotype B is one of the most important sucking pests of common bean, which causes severe damages and requires frequently synthetic insecticides spraying to protect crop productivity. The use of common bean cultivars resistant to whitefly attack is an important strategy within an integrated pest management (IPM) program. The biological development of B. tabaci confined to 17 bean genotypes was evaluated in greenhouse trials to verify the occurrence of antibiosis. Whitefly adults were released on plants of these genotypes to oviposit, afterward the incubation period of eggs, nymphal period, complete development period (egg–adult), and viability of the silverleaf whitefly nymphs were recorded. As main results, genotype CHIP 300 prolonged the developmental period from egg to adult (~10 days) and BRS Estilo, Arcelina 4, IPR Garça, Tybatã, CHIP 300, IPR Eldorado, H96A102-1-1-1-52, SCS-202-Guará and CHIB 06 caused nymphal mortality, suggesting high levels of antibiosis and/or antixenosis. These genotypes may be helpful in common bean breeding programs aimed at developing commercial cultivars resistant to B. tabaci biotype B.

A ocorrência de Helicoverpa armigera (Hübner, 1808) foi relatada pela primeira vez em pomar comercial de cítrus no Estado de São Paulo (SP). Altos níveis de infestação de H. armigera foram observados em outubro de 2012, na cidade de Botucatu-SP. As larvas alimentaram-se em todas as partes de plantas. As lesões nas folhas causaram drástica redução da área foliar, e o ataque aos frutos ocorreu a partir do estágio inicial de desenvolvimento até a fase do fruto maduro. Assim, o relato da primeira ocorrência de H. armigera acrescenta a cultura de citros à lista de hospedeiros desta praga, e é de grande importância, pois confirma a polifagia e o potencial de dispersão de H. armigera.

The occurrence of Helicoverpa armigera (Hübner, 1808) was first reported in citrus orchard in the state of São Paulo (SP). High infestation levels of H. armigera were observed in October 2012, in the city of Botucatu, SP. The larvae was fed of all parts of the plants. The injuries on the leaves caused drastic reduction in the leaf area and the fruits attack occurred from an early stage of development to the ripe fruit. Thus, the first occurrence of H. armigera in this citrus culture adds to the list of hosts of this pest, and is of great importance, because it confirms H. armigera potential dispersion and polyphagia.