Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures.
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1021651 |
Resumo: | Chrysoperla externa (Neuroptera: Chrysopidae) is one of the natural enemies of the corn leaf aphid Rhopalosiphum maidis (Hemiptera: Aphididae) and has potential application in the biological control of that pest. The effect of? temperature on the development and the predatory capacity of this chrysopid fed with R. maidis nymphs was investigated. Fresh eggs of C. externa were maintained at 15, 20, 25 or 30 °C under 70% relative humidity and 12 h photophase, and the duration of the embryonic stage, as well as the duration and viability of the larval (first, second and third instars), prepupal, pupal and adult forms of the predator were evaluated. The duration of each of these stages decreased with increasing temperature, whilst the viabilities of all forms attained 100% at 20 and 25 °C. The threshold temperature and the value of the thermal constant K obtained for the complete life cycle (egg to adult) were, respectively, 10.7 °C and 377.8 degree-days. Independent of temperature, the consumption of R. maidis nymphs by C. externa increased as the larvae reached maturity. At 20 and 25 °C the average number of aphids consumed during the complete larval stage was maximal at approximately 350 specimens. It is concluded, therefore, that the development of the immature forms of C. externa fed on R. maidis as well as its viability and predatory capacity, were favored at temperatures between 20 and 25 °C. |
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Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures.Corn leaf aphidPredatorGreen lacewingThermal requirementsControle biológicoBiological controlChrysoperla externa (Neuroptera: Chrysopidae) is one of the natural enemies of the corn leaf aphid Rhopalosiphum maidis (Hemiptera: Aphididae) and has potential application in the biological control of that pest. The effect of? temperature on the development and the predatory capacity of this chrysopid fed with R. maidis nymphs was investigated. Fresh eggs of C. externa were maintained at 15, 20, 25 or 30 °C under 70% relative humidity and 12 h photophase, and the duration of the embryonic stage, as well as the duration and viability of the larval (first, second and third instars), prepupal, pupal and adult forms of the predator were evaluated. The duration of each of these stages decreased with increasing temperature, whilst the viabilities of all forms attained 100% at 20 and 25 °C. The threshold temperature and the value of the thermal constant K obtained for the complete life cycle (egg to adult) were, respectively, 10.7 °C and 377.8 degree-days. Independent of temperature, the consumption of R. maidis nymphs by C. externa increased as the larvae reached maturity. At 20 and 25 °C the average number of aphids consumed during the complete larval stage was maximal at approximately 350 specimens. It is concluded, therefore, that the development of the immature forms of C. externa fed on R. maidis as well as its viability and predatory capacity, were favored at temperatures between 20 and 25 °C.ALYSSON R. FONSECA, UEMG; CÉSAR F. CARVALHO, UFLA, Lavras, MG.; IVAN CRUZ, CNPMS; BRÍGIDA SOUZA, UFLA, Lavras, MG.; CARLOS C. ECOLE, (IIAM), Mavalane, Maputo, Mozambique.FONSECA, A. R.CARVALHO, C. F.CRUZ, I.SOUZA, B.ECOLE, C. C.2015-08-10T11:11:11Z2015-08-10T11:11:11Z2015-08-1020152016-03-04T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Colombiana de Entomología, Bogotá, v. 41, n. 1, p. 5-11, enero/jun. 2015.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1021651enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:30:41Zoai:www.alice.cnptia.embrapa.br:doc/1021651Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:30:41falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:30:41Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
title |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
spellingShingle |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. FONSECA, A. R. Corn leaf aphid Predator Green lacewing Thermal requirements Controle biológico Biological control |
title_short |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
title_full |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
title_fullStr |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
title_full_unstemmed |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
title_sort |
Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. |
author |
FONSECA, A. R. |
author_facet |
FONSECA, A. R. CARVALHO, C. F. CRUZ, I. SOUZA, B. ECOLE, C. C. |
author_role |
author |
author2 |
CARVALHO, C. F. CRUZ, I. SOUZA, B. ECOLE, C. C. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
ALYSSON R. FONSECA, UEMG; CÉSAR F. CARVALHO, UFLA, Lavras, MG.; IVAN CRUZ, CNPMS; BRÍGIDA SOUZA, UFLA, Lavras, MG.; CARLOS C. ECOLE, (IIAM), Mavalane, Maputo, Mozambique. |
dc.contributor.author.fl_str_mv |
FONSECA, A. R. CARVALHO, C. F. CRUZ, I. SOUZA, B. ECOLE, C. C. |
dc.subject.por.fl_str_mv |
Corn leaf aphid Predator Green lacewing Thermal requirements Controle biológico Biological control |
topic |
Corn leaf aphid Predator Green lacewing Thermal requirements Controle biológico Biological control |
description |
Chrysoperla externa (Neuroptera: Chrysopidae) is one of the natural enemies of the corn leaf aphid Rhopalosiphum maidis (Hemiptera: Aphididae) and has potential application in the biological control of that pest. The effect of? temperature on the development and the predatory capacity of this chrysopid fed with R. maidis nymphs was investigated. Fresh eggs of C. externa were maintained at 15, 20, 25 or 30 °C under 70% relative humidity and 12 h photophase, and the duration of the embryonic stage, as well as the duration and viability of the larval (first, second and third instars), prepupal, pupal and adult forms of the predator were evaluated. The duration of each of these stages decreased with increasing temperature, whilst the viabilities of all forms attained 100% at 20 and 25 °C. The threshold temperature and the value of the thermal constant K obtained for the complete life cycle (egg to adult) were, respectively, 10.7 °C and 377.8 degree-days. Independent of temperature, the consumption of R. maidis nymphs by C. externa increased as the larvae reached maturity. At 20 and 25 °C the average number of aphids consumed during the complete larval stage was maximal at approximately 350 specimens. It is concluded, therefore, that the development of the immature forms of C. externa fed on R. maidis as well as its viability and predatory capacity, were favored at temperatures between 20 and 25 °C. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-10T11:11:11Z 2015-08-10T11:11:11Z 2015-08-10 2015 2016-03-04T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Colombiana de Entomología, Bogotá, v. 41, n. 1, p. 5-11, enero/jun. 2015. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1021651 |
identifier_str_mv |
Revista Colombiana de Entomología, Bogotá, v. 41, n. 1, p. 5-11, enero/jun. 2015. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1021651 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503409762566144 |