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dc.creatorSouza, Jander R.-
dc.creatorCarvalho, Geraldo A.-
dc.creatorMoura, Alexandre P.-
dc.creatorCouto, Marcelo H. G.-
dc.creatorMaia, Jader B.-
dc.date.accessioned2019-11-28T17:02:46Z-
dc.date.available2019-11-28T17:02:46Z-
dc.date.issued2013-
dc.identifier.citationSOUZA, J. R. et al. Impact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspring. Chilean Journal of Agricultural Research, Santiago do Chile, v. 73, n. 2, Apr./June 2013.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/37835-
dc.description.abstractCorn (Zea mays L.) is cultivated in large areas and considered one of the world’s major cereal crops. There are several arthropod pests that can reduce its production such as the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lep.: Noctuidae), which is considered to be the main pest for corn. Fall armyworm is primarily controlled by insecticides. The use of biological control agents to manage this pest is growing with an emphasis on the egg parasitoid Trichogramma pretiosum Riley (Hym.: Trichogrammatidae). Thus, the aim of this research was to evaluate the impact of the following insecticides (g ai L-1) beta-cypermethrin (0.03), chlorfenapyr (0.60), chlorpyrifos (0.96), spinosad (0.16), etofenprox (0.10), triflumuron (0.08), alfa-cypermethrin/teflubenzuron (0.0425/0.0425), and lambda-cyhalothrin/thiamethoxam (0.11/0.083) on survival, sex ratio, reproduction, and T. pretiosum offspring. Distilled water was used as a control. Commercial insecticide formulations were diluted in distilled water. Bioassays used Anagasta kuehniella eggs treated with insecticides which were afterwards exposed to parasitism. Bioassays were conducted under controlled conditions at 25 ± 2 ºC, 70 ± 10% RH, and 12:12 h photoperiod. Alfa-cypermethrin/teflubenzuron, beta-cypermethrin, chlorpyrifos, chlorfenapyr, spinosad, etofenprox, and lambda-cyhalothrin/thiamethoxam reduced parasitism capacity of maternal generation females as well as the percentage of insect emergence from the F1 generation. Only triflumuron was selective for T. pretiosum and can be recommended along with this parasitoid in fall armyworm management programs in corn.pt_BR
dc.languageen_USpt_BR
dc.publisherInstituto de Investigaciones Agropecuariaspt_BR
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.sourceChilean Journal of Agricultural Researchpt_BR
dc.subjectIntegrated pest managementpt_BR
dc.subjectParasitoidpt_BR
dc.subjectTriflumuronpt_BR
dc.subjectZea mayspt_BR
dc.titleImpact of insecticides used to control Spodoptera frugiperda (J.E. Smith) in corn on survival, sex ratio, and reproduction of Trichogramma pretiosum Riley offspringpt_BR
dc.typeArtigopt_BR
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