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Egg parasitoid wasps as natural enemies of the neotropical stink bug Dichelops melacanthus. Repositório Alice
LAUMANN, R. A.; MORAES, M. C. B.; SILVA, J. P. da; VIEIRA, A. M. C.; SILVEIRA, S. da; BORGES, M..
Abstract ? The objective of this work was to determine the potential of five species of Scelionidae wasps ? Telenomus podisi, Trissolcus basalis, Trissolcus urichi, Trissolcus teretis and Trissolcus brochymenae ? as natural enemies of the neotropical stink bug Dichelops melacanthus, and to determine if the presence of eggs of other stink bug species influences the parasitism and development of the parasitoids. Two kinds of experiments were done in laboratory: without choice of hosts (eggs of D. melacanthus) and with choice (eggs of D. melacanthus and of Euschistus heros). Biological parameters, including proportion of parasitism, immature survivorship, progeny sex ratio, immature stage development period, and host preference were recorded. All the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Corn pests; Telenomus; Trissolcus; Biological control; Host preference; Host suitability.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/859110
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Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn. Repositório Alice
MATOS NETO, F. da C.; CRUZ, I.; ZANUNCIO, J.C.; SILVA, C.H.O.; PICANÇO, M.C..
Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Field cage evaluation; Corn pests; Biological control; Parasitoid density; Avaliação em gaiola de campo; Pragas do milho; Controle biológico; Densidade do parasitóide; Ichneumonidae.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/113097
Registros recuperados: 2
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