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Registros recuperados: 8
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Antixenosis to Chrysodeixis includens (Lepidoptera: Noctuidae) among soybean genotypes Bragantia
Schlick-Souza,Eunice Cláudia; Baldin,Edson Luiz Lopes; Morando,Rafaela; Lourenção,André Luiz.
ABSTRACT The soybean looper Chrysodeixis includens is one of the main defoliating pests of soybean cultures in Brazil. This work aimed to evaluate the effect of offering different soybean genotypes to this insect to verify the occurrence of antixenosis. In a greenhouse, assays were carried out to determine the attractiveness of C. includens adults given free-choice tests. This experiment used a randomized block design with five replicates. A second experiment assessed oviposition preference using no-choice tests, employing a completely randomized design with five replicates. Seventeen soybean cultivars were used; several of these had previously been reported as carriers of resistance to more than one species of insect. In the laboratory, a morphological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Soybean looper; Host plant resistance to insects; Non-preference.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100124
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Characterization of a Chrysodeixis includens nucleopolyhedrovirus Isolate from Brazilian Cerrado and Assessment of its Co-Infection with Anticarsia gemmatalis multiple nucleopolyhedrovirus BABT
Sanches,Márcio Martinello; Sihler,William; Silva,Cláudia Efigênia Pereira; Guimarães,Giovana Curcio; Benito,Norton Polo; Sosa-Gómez,Daniel Ricardo; de Souza,Marlinda Lobo.
Abstract Chrysodeixis includens has become the major Lepidopteran pest of soybean crops, especially in the Brazilian Cerrado (savanna) region. A native isolate of Chrysodeixis includens nucleopolyhedrovirus (ChinNPV) from this region, Buritis, MG, was assessed for its biological and molecular features. In addition, in vitro co-infection with Anticarsia gemmatalis multiple nucleopolyhedrovirus (AgMNPV), another virus of an important soybean pest, was tested. The ChinNPV-Buritis isolate presented an average LC50 of 7,750 occlusion bodies (OBs)/ml of diet in C. includens larvae. Analysis of restriction endonuclease profiles of viral DNA revealed similarities with previously described ChinNPV isolates IE, IF, and IG from Brazil, although the presence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AgMNPV; Baculovirus; ChinNPV; Soybean looper; Velvetbean caterpillar.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100218
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Control of Chrysodeixis includens (Lepidoptera: Noctuidae) using Chin-IA (I-A) isolate as integrate component of management in soybean crops. Repositório Alice
BOTELHO, A. B. R. Z.; SILVA, I. F. da; AVILA, C. J..
bitstream/item/202899/1/36895.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Lagarta falsa-medideira; Consumo foliar; Nucleopolyhedrovirus; Soybean looper; Foliar consumption; Controle Biológico; Soja; Cerrado; Biological control; Population density; Entomology.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113120
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Effect of the larval density of Chrysodeixis includens (LEPIDOPTERA, NOCTUIDAE) on cotton yield. Repositório Alice
RODRIGUES, S. M. M.; PITTA, R. M.; SANTOS, N. C..
The cultivation of soybean near to cotton areas has favored the migration of lepidopteran pests between those crops, including the soybean looper, Chrysodeixis includens, which usually attacks soybean leaves but can also attack cotton plants. The objective of this study is to identify the density of C. includens larvae capable of decreasing cotton productivity. Six treatments (0, 2, 4, 6, 8 and 16 larvae.meter-1) with five replications were arranged in a completely randomized block design. Plants of cultivar FM 944GL at stage F2 were protected by PVC cages (length, 1.0 m; width, 1.0 m, height, 1.6 m) covered with organza fabric and infested with third-instar larvae. Crop yield and defoliation data were subjected to analysis of variance using the F-test and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Herbivory; Management; Falsa-medideira; Herbivoria; Soybean looper; Gossypium Hirsutum; Manejo; Herbivores; Pseudoplusia includens virus.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118778
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Effectiveness reduction of nucleopolyhedrovirus against Chrysodeixis includens days after application in soybean plants. Repositório Alice
BOTELHO, A. B. R. Z.; SILVA, I. F. da; AVILA, C. J..
bitstream/item/205916/1/36925.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Condições climáticas; Microbial control; Soybean looper; Climatic conditions; Lagarta falsa medideira; Controle Microbiano; Vírus; Clima.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1115653
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Evaluation of pyrethroids toxicity in a laboratory strain and a fi eld population of Rachiplusia nu (Lepidoptera: Noctuidae) using two bioassay techniques Rev. Soc. Entomol. Argent.
Russo,Romina; Gamundi,Juan C.; Alzogaray,Raúl A..
Soybean is the most important crop in Argentina and Rachiplusia nu (Gueneé) (Lepidoptera: Noctuidae) is one of its main pests. In this study, the toxicity of five pyrethroids applied topically and by exposure to films on filter paper was evaluated on third instar larvae from a laboratory strain and a field population of R. nu. Four cyanopyrethroids and one non-cyanopyrethroid (permethrin) were tested. All cyanopyrethroids showed the same order of increasing toxicity, regardless of the form of application and origin of the larvae: cypermethrin < ?-cyhalothrin < deltamethrin < ß-cyfluthrin. Knock down Dose 50% and Knock down Time 50% values increased as a function of the solubility of cyanopyrethroids in water. Permethrin showed a different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soybean looper; Soybean pests; Insecticide resistance.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802012000100011
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Host plants of Chrysodeixis includens (Walker) (Lepidoptera, Noctuidae, Plusiinae) Rev. Bras. entomol.
Specht,Alexandre; Paula-Moraes,Silvana Vieira de; Sosa-Gómez,Daniel Ricardo.
ABSTRACT This work has the objective to catalogue the information of Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae: Plusiinae) host plants. The list of plants comprehends new reports of host plants in Brazil and information from literature review around the world. It is listed 174 plants which are from 39 botanic families. The higher number of host plants of C. includens are in Asteraceae (29), Solanaceae (21), Fabaceae (18) and Lamiaceae (12).
Tipo: Info:eu-repo/semantics/other Palavras-chave: Caterpillar; Inventory; Polyphagy; Soybean looper.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400343
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Outbreaks of Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) in common bean and castor bean in São Paulo State, Brazil Bragantia
Baldin,Edson Luiz Lopes; Lourenção,André Luiz; Schlick-Souza,Eunice Cláudia.
Since 2009, increasing populations of Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) have been observed in cultivated common bean (Phaseolus vulgaris L.) and castor bean (Ricinus communis L.) at the Lageado Experimental Farm, belonging to the FCA/UNESP, Botucatu, São Paulo State, Brazil. Defoliations around 80% and 50% were observed in the common bean cv. Pérola and castor bean cv. IAC-2028, respectively. Samples of individuals (caterpillars and pupae) were collected in the field, and kept in laboratory until adult emergence aiming to confirm the species. These are new observations for common bean in São Paulo State and, in the case of castor bean, unpublished in Brazil. It suggests that C. includens has adapted to attack other agricultural...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbivory; Alternative hosts; Soybean looper.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000400015
Registros recuperados: 8
Primeira ... 1 ... Última
 

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