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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
18/06/1996 |
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Data da última atualização: |
18/01/2010 |
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Autoria: |
SRIVASTAVA, M.; SING, R. |
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Título: |
Bionomics of Trioxys indicus, an Aphidiid parasitoid of Aphis craccivora. 26. Impact of host extract on the oviposition response of the parasitoid. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Biological Agriculture and Horticulture, v. 5, p. 169-176, 1988. |
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Idioma: |
Inglês |
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Conteúdo: |
Female Trioxys indicus, an aphidiid parasitoid of the pigeonpea aphid Aphis craccivora, responded to aqueous extracts of the host topically sprayed on to holt-infested leaves by examining such areas intensely with their antannae. The host-extract application reduced the host search-time, thus increasing the probability of finding more hosts. By increasing the concentration of the host-extract on the host-patch, the frequencies of host contact, prick and oviposition behaviour increased significantly. Similarly, the retention period of the parasitoids with the hosts significantly increased which, when combined with their intensified behaviour, resulted in a higher degree of host parasitisation.The female parasitised 60% more hosts under host-extract exposure (200 aphid/ml) than with the control. Their area of discovery increased expotentially with increasing host-extract concentration. These studies suggest the value of using the host-extract in the mass culture of the parasitoid in the laboratory. The active ingredients functioning as host-seeking stimulants (kairomones) in the host-extract have yet tobe investigated. |
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Palavras-Chave: |
Controle; Parasita. |
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Thesagro: |
Afídeo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01669naa a2200169 a 4500
001 1077490
005 2010-01-18
008 1988 bl --- 0-- u #d
100 1 $aSRIVASTAVA, M.
245 $aBionomics of Trioxys indicus, an Aphidiid parasitoid of Aphis craccivora. 26. Impact of host extract on the oviposition response of the parasitoid.
260 $c1988
520 $aFemale Trioxys indicus, an aphidiid parasitoid of the pigeonpea aphid Aphis craccivora, responded to aqueous extracts of the host topically sprayed on to holt-infested leaves by examining such areas intensely with their antannae. The host-extract application reduced the host search-time, thus increasing the probability of finding more hosts. By increasing the concentration of the host-extract on the host-patch, the frequencies of host contact, prick and oviposition behaviour increased significantly. Similarly, the retention period of the parasitoids with the hosts significantly increased which, when combined with their intensified behaviour, resulted in a higher degree of host parasitisation.The female parasitised 60% more hosts under host-extract exposure (200 aphid/ml) than with the control. Their area of discovery increased expotentially with increasing host-extract concentration. These studies suggest the value of using the host-extract in the mass culture of the parasitoid in the laboratory. The active ingredients functioning as host-seeking stimulants (kairomones) in the host-extract have yet tobe investigated.
650 $aAfídeo
653 $aControle
653 $aParasita
700 1 $aSING, R.
773 $tBiological Agriculture and Horticulture$gv. 5, p. 169-176, 1988.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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| 1. |  | MOREL, J. B.; FERREIRA, M.; CAPDEVILLE, G. de; SCAGLIUSI, S. M. M.; BONATO, A. L. V.; MEHTA, Y.; MACIEL, J. L. N.; SCHEEREN, P. L.; CHAVES, M. S.; BRAMMER, S. P.; RONALD, P.; JUNG, K. H.; SING, R.; WILLIAM, M.; KIKUCHI, S.; SATOH, K.; BOYD, L.; TUFAN, H.; MCGRANN, G.; FEUILLET, C.; SOURDILLE, P.; SALSE, J.; MICHÉ, L.; BOUSQUET, M.; MICHEL, C. Functional genomics of cross-species resistance to fungal diseases in rice and wheat (CEREALIMMUNITY). In: GENERATION CHALLENGE PROGRAMME CULTIVATING PLANT DIVERSITY FOR THE RESOURCE-POOR, 2008, Mexico. Project abstracts... Mexico: Generation Challenge programme, 2008. p. 19-21.| Tipo: Artigo em Anais de Congresso |
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