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- W2896788636 abstract "Predatory stinkbugs such as Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) have been mass-reared in the laboratory and released for use in integrated pest management programs. However, the rearing of this natural enemy may not coincide with pest outbreaks in the field, which indicates the need for techniques to manipulate the life cycle of the predator. The objective of this study was to evaluate the effect of different temperatures on the development and other biological characteristics of the stinkbug predator P. nigrispinus . Six temperatures were used (13, 17, 21, 25, 29, and 33 °C ± 0.2 °C), and the following parameters were evaluated: duration of egg and nymphal stages; survival rate of the nymphal stages and newly emerged adults; adult longevity; number of eggs per female; pre-oviposition, oviposition, and post-oviposition periods; and adult weight. At 4 temperatures it was possible to obtain survival at all nymphal stages. Longer adult longevity, pre-oviposition, oviposition, and post-oviposition periods were obtained at 17 °C. However, the number of eggs, weight, and size were negatively affected by this cooler temperature. Temperatures of 21 and 25 °C were the most appropriate for the development of the predator; however, the temperatures 17 and 29 °C allowed delay or acceleration of the predator’s life cycle, thereby facilitating release of the predators when they are needed in the field for biological suppression of pests. Resumen Percevejos predadores, como o Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae), tem sido criado massalmente em laboratorio e liberado nos programas de Manejo Integrado de Pragas. No entanto, a producao de inimigos naturais pode nao coincidir com o surto de pragas no campo, fazendo necessario o uso de tecnicas que permitam manipular o ciclo de vida do predador. Objetivou-se, portanto, investigar os efeitos de diferentes temperaturas no desenvolvimento e em outras caracteristicas biologicas do percevejo predador P. nigrispinus. Seis temperaturas foram utilizadas (13, 17, 21, 25, 29, e 33 °C ± 0,2), e os parâmetros avaliados foram: duracao da fase de ovo e dos estadios ninfais; sobrevivencias; longevidade de adultos; numero de ovos por femea; periodo de pre-oviposicao, oviposicao e pos-oviposicao; peso e tamanho de adultos. Em quatro temperaturas foi possivel obter a duracao e sobrevivencia em todos os estadios ninfais. Maior longevidade de adultos e periodo de pre-oviposicao, oviposicao e pos-oviposicao foram obtidos na temperatura de 17 °C. Todavia, o numero de ovos, peso e tamanho de adultos foram afetados adversamente. As temperaturas de 21 e 25 °C sao as mais apropriadas para o desenvolvimento do predador. Por outro lado, as temperaturas de 17 e 29 °C permitem retardar ou acelerar o ciclo de vida do predador mediante a necessidade de inimigos naturais no campo. View this article in BioOne" @default.
- W2896788636 created "2018-10-26" @default.
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- W2896788636 date "2018-09-01" @default.
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- W2896788636 title "Effects of Temperature on the Development of<i>Podisus nigrispinus</i>(Heteroptera: Pentatomidae): Implications for Mass Rearing" @default.
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- W2896788636 doi "https://doi.org/10.1653/024.101.0303" @default.
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