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| Registros recuperados: 70 | |
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| VALICENTE, F. H.; TUELHER, E. de S.; PAIVA, C. E. C.; GUIMARÃES, M. R. F.; MACEDO, C. V.; WOLFF, L. C.. |
| The large-scale production of Baculovirus to control fall armyworm, Spodoptera frugiperda, presents many limitations. The most important limiting factor is that the baculovirus, which infects fall armyworm, causes liquefaction of the integument immediately after death. This disruption of the integument difficultates the large scale production because dead insect must be frozen before being harvested. This fact implies in high lab work need, increasing the cost of the biopesticide. This problem was overcome by the discovery of a new baculovirus nucleopolyhedrovirus (NPV) isolate in Cascavel/PR, that doesn?t cause liquefaction of the integument (isolate 6NR) immediately after the insect death. This is an extremely important factor in a large-scale... |
| Tipo: Artigo de periódico |
Palavras-chave: Fall armyworm; Large-scale production. |
| Ano: 2008 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/491615 |
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| Cunha,João Paulo Arantes Rodrigues da; Nascimento,Ana Paula de Castro. |
| Pesticides can be applied by aircraft, ground-sprayers or sprinkler irrigation. However, selecting the best option is complicated by the limited number of studies comparing these techniques. Thus, the objective of this work was to study the chlorpyrifos insecticide deposition applied by aircraft (30 L ha-1), tractor-mounted sprayer (200 L ha-1) and chemigation (70,000 L ha-1) for the control of Spodoptera frugiperda (J.E. Smith) in two corn (Zea mays L.) populations (70,000 and 100,000 plants ha-1). Active ingredient residue on the corn plant leaves was evaluated by gas chromatography, immediately and ten days after the treatments. Armyworm numbers in each plot and control were also evaluated. The experiment was set up in randomized blocks with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecticide application technology; Fall armyworm; Chemigation; Sprayer. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200002 |
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| CRUZ, I.; LIMA, D. A. N. de; FIGUEIREDO, M. L. C.; VALICENTE, F. H.. |
| Estudou-se em laboratorio, aspectos biologicos do parasitoide Campoletis flavicincta (Ashmead) utilizando como hospedeiro larvas de Spodoptera frugiperda (Smith). Dez casais recem-nascidos de C. flavicincta foram individualizados no interior de vidros transparentes, (9,5 cm de diametro x 22 cm de altura) cobertos com um tecido fino, com solucao acucarada enriquecida com acido ascorbico. Sob condicoes de temperatura de 25 +/_ 2oC, umidade relativa de 70 +/- 10% e fotofase de 12 horas, cada casal recebeu diariamente cerca de 50 lagartas de tres dias de idade da especie S. frugiperda. Apos cada periodo de parasitismo as larvas foram individualizadas em copos plasticos contendo dieta artificial. O ciclo biologico total do parasitoide foi de 19,3 dias, sendo de... |
| Tipo: Artigo de periódico |
Palavras-chave: Lagarta do cartucho; Pragas; Fall armyworm; Maize; Pest.; Milho.; Ichneumonidae; Hymenoptera; Insecta.. |
| Ano: 1995 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/477331 |
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| Silva,Gonzalo; Rodríguez,J. Concepción; Blanco,Carlos A; Lagunes,Angel. |
| The insecticidal properties of water-extract of Peumus boldus Molina and its effect on the development cycle and feeding habits of Spodoptera frugiperda J.E. Smith and Helicoverpa zea Boddie were evaluated under laboratory conditions in concentrations of 0.25, 0.5, 1.0, 2.0, 4.0, and 8.0% (w/w). Spodoptera frugiperda was the most susceptible with 75% mortality at 7 d at 8% P. boldus concentration, while H. zea had only 30% mortality. LC50 was 2.31 mL kg-1 for S. frugiperda and 16.05 mL kg¹ for H. zea. When the extract concentration increased in the diet, larval size and weight, percentage of pupation and number of adults decreased, and the time required to reach those states was greater. Neonate larvae fed primarily on the diet with the lower extract... |
| Tipo: Journal article |
Palavras-chave: Fall armyworm; Corn earworm; Botanical insecticides; Nutritional indexes. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200008 |
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| DIAS, A. S.; MARUCCI, R. C.; MENDES, S. M.; MOREIRA, S. G.; ARAÚJO, O. G.; SANTOS, C. A. dos; BARBOSA, T. A.. |
| The objective of this work was to evaluate the biological variables of Spodoptera frugiperda on species of cover crops. The experiments were conducted in laboratory and greenhouse using the following species: sunflower (Helianthus annuus), sun hemp (Crotalaria juncea), brachiaria (Urochloa decumbens e Urochloa ruziziensis), millet (Pennisetum americanum), black oat (Avena stringosa), white lupin (Lupinus albus), forage turnip (Rafanus sativus) and maize (Zea mays). In laboratory the S. frugiperda larval survival varied from 57%, on L. albus, to 93% on H. annuus and the survival of the pre-imaginal phase varied from 45% on U. decumbens to 81.6% on Z. mays. On C. juncea the larval biomass was lower and the development period of the young and larval stage was... |
| Tipo: Artigo de periódico |
Palavras-chave: Lagarta do cartucho; Fall armyworm; Zea mays; Planta de cobertura; Plantio direto; Lagarta; Praga de planta; Cover crops; No-tillage. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1047534 |
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| Bernardi,Daniel; Bernardi,Oderlei; Horikoshi,Renato Jun; Salmeron,Eloisa; Okuma,Daniela Miyuki; Omoto,Celso. |
| ABSTRACT: Spodoptera frugiperda (J. E. Smith) is the main target pest of Bt corn technologies, such as YieldGard VT PRO(tm) (Cry1A.105/Cry2Ab2) and PowerCore(tm) (Cry1A.105/Cry2Ab2/Cry1F). In this study, it was evaluated the biological activity of Bt proteins expressed in different plant structures of YieldGard VT PRO(tm) and PowerCore(tm) corn against S. frugiperda . Complete mortality of S. frugiperda neonates was observed on leaf-disc of both Bt corn technologies. However, the mortality in silks and grains was lower than 50 and 6%, respectively. In addition, more than 49% of the surviving larvae in silks and grains completed the biological cycle. However, all life table parameters were negatively affected in insects that developed in silks and grains... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fall armyworm; Bacillus thuringiensis; Bt corn; Insect resistance management. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601019 |
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| LUCENA,DAIANE C.; BERTHOLDO-VARGAS,LUCIA R.; SILVA,WILSON C.; MACHADO,AARON F.; LOPES,TAMIRIS S.; MOURA,SIDNEI; BARROS,NEIVA M.. |
| ABSTRACT Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biological activity of hexane, ethyl acetate, and ethanol extracts of P. aduncum leaves on mortality and duration of larval and pupal periods, as well as weight, width, and length of A. gemmatalis and S. frugiperda pupae. The mortality of A. gemmatalis larvae in trials with P. aduncum extracts were 93.3% (hexane) and 90% (ethyl acetate), estimating LC50 of 6.35 and 5.79 mg/mL, respectively. Mortality in S. frugiperda submitted to the hexane extract ranged from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fall armyworm; Velvetbean caterpillar; Pest management; Plant extracts. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401869 |
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| Bueno,Regiane Cristina Oliveira de Freitas; Bueno,Adeney de Freitas; Parra,José Roberto Postalli; Vieira,Simone Silva; Oliveira,Luciele Januário de. |
| This study aimed at evaluating the biological characteristics and the capacity of parasitism of a Trichogramma pretiosum Riley, 1869 (Hymenoptera, Trichogrammatidae) strain (T. pretiosum RV) collected in Rio Verde County, State of Goiás, Brazil. The study was carried out on eggs of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera, Noctuidae) and conducted under controlled environmental conditions at different constant temperatures. The biological parameters determined were: developmental time (egg-adult; days); emergence (%); sex ratio; number of progeny/egg; number of generation/year; thermal constant (K); temperature threshold (Tb); daily number of parasitized eggs; cumulative parasitism (%); total number of eggs parasitized by T. pretiosum; and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Egg parasitoids; Fall armyworm; Temperature. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000200016 |
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| Polanczyk,Ricardo Antonio; Alves,Sérgio Batista. |
| The bacterium Bacillus thuringiensis (Bt) is a promising control agent of Spodoptera frugiperda (J.E. Smith). Besides the lethal effect on hosts, the entomopathogen may cause physiological alterations that hinder insects' feeding intake and reproduction. Larval and female pupa weight, oviposition and egg fecundity were determined in second instar S. frugiperda larvae infected with 39 Bt isolates in four bioassays. Sublethal effects were observed in the follow isolates: ESALQ 1.1, ESALQ 1.4, ESALQ 1.6, ESALQ 3.7, ESALQ 4.2 and ESALQ 5.2 (larval and female pupae weight); ESALQ 5.1 (larval weight); ESALQ 1.2 and ESALQ 3.7 (egg fecundity); ESALQ 3.7 (oviposition and egg fecundity); ESALQ 3.7 and ESALQ 5.2 (oviposition). Significant correlations were observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Entomopathogen; Fall armyworm; Sublethal effects. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500009 |
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| WAQUIL, J. M.; VIANA, P. A.; LORDELLO, A. I.; CRUZ, I.; OLIVEIRA, A. C. de. |
| Para o controle das lagartas de Spodoptera frugiperda avaliou-se o efeito dos inseticidas carbaryl (Carvin 85 M), metomil (Lannate 90 PS), decamethrin (Decis CE 2,5), Heptacloro (Heptacloro 1,5 G), diazinon (Basudin 14 G), clorpirifos etil (Lorsban 4 EC), fonofos (Dyfonate 10 G), fonofos (Dyfonate 4 EC) e o Bacillus thuringiensis (Dipel M), em condicoes de campo. As observacoes do numero de lagartas mortas e vivas foram realizadas as 48 horas e aos 8 dias apos a aplicacao dos produtos. Com base nos resultados obtidos na primeira observacao, concluiu-se que os inseticidas clorpirifos etil e metomil foram os mais eficientes no controle de S. frugiperda, enquanto que o B.thuringiensis apresentou eficiencia nula sobre a praga. Quanto ao efeito residual, todos... |
| Tipo: Artigo de periódico |
Palavras-chave: Pragas; Lagarta do cartucho; Fall armyworm; Maize; Chemical; Bacillus Thuringiensis; Controle Biológico; Controle Químico; Inseticida; Milho; Spodoptera Frugiperda; Biological control; Corn; Insecticides; Pest control. |
| Ano: 1982 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/471723 |
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| CRUZ, I.; SANTOS, J. P. dos; WAQUIL, J. M.. |
| Avaliaram-se diversos produtos quimicos em diferentes formulacoes e dosagens, visando o controle da lagarta-do-cartucho, Spodoptera frugiperda (Smith), em milho. Foram realizadas infestacoes artificiais com cinco larvas de segundo instar por planta, antes e depois da aplicacao dos produtos. Para a aplicacao dos inseticidas na forma liquida utilizou-se um pulverizador manual-costal, com um manometro adaptado na base de sua barra de pulverizacao, o que possibilitou um controle da pressao em torno de 40 lb/pol2. Utilizou-se um bico tipo leque numero 8004, dirigindo-se o jato de inseticida para o interior do cartucho da planta. Os inseticidas granulados foram aplicados diretamente no interior do cartucho da planta com um dispositivo tipo "matraca". Com base... |
| Tipo: Artigo de periódico |
Palavras-chave: Lagarta do cartucho; Infestacao artificial; Pragas; Controle; Artificial infestation; Fall armyworm; Controle Químico; Inseticida; Milho; Spodoptera Frugiperda; Insecticides; Pest control. |
| Ano: 1982 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/471614 |
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| RAMOS, R. da S.; SILVA, C. A. D. da; LIMA, T. de A.; ALBUQUERQUE JÚNIOR, P. de S.; CASTELLANI, M. A.; SERRÃO, J. E.; ZANUNCIO, J. C.. |
| The polyphagy of Spodoptera frugiperda (Lepidoptera: Noctuidae) renders its control difficult because variations in the phenology of host plants grown in different seasons of the year and near each other can facilitate the movement of this pest between crops. The objective of this work was to examine certain biological characteristics of S. frugiperda fed on an artificial diet or on cotton, castor bean, or corn leaves. The experimental design was in randomized blocks, with four treatments represented by S. frugiperda caterpillars fed an artificial diet (T1) or pieces of cotton (T2), castor bean (T3) or corn (T4) leaves with five replications (five caterpillars per replication). The duration and survival of the egg, larva, pre-pupa, pupa and egg-adult... |
| Tipo: Artigo de periódico |
Palavras-chave: Fall armyworm; Bionomia; Algodão; Gossypium Hirsutum; Lagarta; Ricinus Communis; Zea Mays; Milho; Mamona; Cotton; Zea mays subsp. mays; Castor beans. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1146315 |
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| PINTO, C. C.; GRÜTZMACHER, A. D.; ROSA, A. P. S. A. da; MANICA-BERTO, R.; MENDES, S. M.; ARGE, L. W. P.; BORGES, C. T.. |
| O objetivo deste trabalho foi avaliar a diversidade molecular, por meio de marcadores AFLP, de seis populações de Spodoptera frugiperda coletadas na cultura do milho, em diferentes regiões geográficas do Brasil. O DNA foi extraído de lagartas de quarto instar, e as reações de AFLP foram realizadas com sete combinações de oligonucleotídeos iniciadores. A partir das seis populações de S. frugiperda estudadas, foi identificado um grupo principal formado por três populações geneticamente mais relacionadas. As populações de S. frugiperda analisadas mostram alta variabilidade genética, com máximo de 58% de similaridade. |
| Tipo: Artigo de periódico |
Palavras-chave: Biotype; Fall armyworm; Molecular markers.; Genetic distance.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1017873 |
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| SILVA, R. B. da; CORREA, A. S.; LUCIA, T. M. C. D.; PEREIRA, A. I. A.; CRUZ, I.; ZANUNCIO, J. C.. |
| Does the aggressiveness of the prey modify the attack behavior of the predator Supputius cincticeps (Stål) (Hemiptera, Pentatomidae)? The stink bug Supputius cincticeps (Stål) (Hemiptera, Pentatomidae) is a predator found in several Brazilian regions, which possesses desirable attributes as a natural control agent and in biological control programs. The aim of this study was to test if the attack behavior and predation success of S. cincticeps were affected by prey species. Larvae of Tenebrio molitor (L.) (Coleoptera, Tenebrionidae), Spodoptera frugiperda (J. E. Smith) (Lepidoptera, Noctuidae), and Thyrinteina arnobia (Stoll) (Lepidoptera, Geometridae) were offered to S. cincticeps in laboratory bioassays where predatory attack and prey defensive behaviors... |
| Tipo: Artigo de periódico |
Palavras-chave: Ethogram of predation; Fall armyworm; Stink bug predator.; Controle biológico; Praga de planta; Lagarta; Percevejo; Biological control.. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/928966 |
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| Registros recuperados: 70 | |
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