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	Provedor de dados Infoteca-e (1) Autor CONCEIÇÃO, M da (1) DONAGEMMA, G. K. (1) MACEDO, J. R. (1) NATALÍCIA, CARVALHO, L. G. (1) PRADO, R. B. (1) SCHULER, A. (1) Mais... Palavra-chave Cobertura do Solo (1) Microbacia (1) Trajano de Morais. (1) Uso da Terra. (1) Tipo do documento Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) (1) Ano 2007 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 40 Primeira ... 1 2 ... Última Effect of the flavonoid rutin on the biology of Spodoptera frugiperda (Lepidoptera: Noctuidae) Agronomy Silva, Talita Roberta Ferreira Borges; Almeida, André Cirilo de Sousa; Moura, Tony de Lima; Silva, Anderson Rodrigo da; Freitas, Silvia de Sousa; Jesus, Flávio Gonçalves. The fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a major pest of maize crops in Brazil. The effects of plant metabolites on the biology and behavior of insects is little studied. The aim of the study was to evaluate the activity of rutin on the biology of the S. frugiperda by using artificial diets containing rutin. The study evaluated four treatments: regular diet (control group) and diets containing 1.0, 2.0 and 3.0 mg g-1 of rutin. The following biological variables parameters of the larvae were evaluated daily: development time (days), larval and pupal weight (g) and viability (%), adult longevity and total life cycle (days). A completely randomized experimental design was used with 25 replication. The rutin flavonoid... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fall armyworm; Insecticide plant; Secondary metabolite; Flavonoid Fitossanidade. Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27956 Biological Activity of Piper aduncum extracts on Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae) and Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) Anais da ABC (AABC) 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 Identificação através de PCR dos genes CryI de cepas de Bacillus thuringiensis Berliner eficientes contra a lagarta do cartucho, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) Anais da SEB Valicente,Fernando H.; Barreto,Marliton R.; Vasconcelos,Maria J. V. de; Figueiredo,José E.F. de; Paiva,Edilson. Fall armyworm, Spodoptera frugiperda (J. E. Smith), is the most important maize insect pest in Brazil and its damage can reduce yield up to 34%. The objective of this work was to utilize the PCR technique to Identify Bacillus thuringiensis (B.t) strains that control S. frugiperda in maize crops. Bioassays showed that 16 strains were very effective against S. frugiperda, 15 of them collected from soil samples and one (T09) obtained at the Institute Pasteur. The DNA of these strains were probed with cryI general primers and their proteins were analised by SDS-PAGE eletrophoresis. All strains present positive results for cryI genes. To further characterize these strains, specific cryI primers were employed. PCR technique showed that some strains harbour the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; CryI genes; Biocontrol; Fall armyworm. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000100018 Metodologia para avaliação do efeito de inseticidas sobre Spodoptera frugiperda (J.E. Smith) na cultura do arroz irrigado Anais da SEB Martins,José F. S.; Loeck,Alei E.; Botton,Marcos; Carbonari,Jairo J.; Gusmão,Luciana G.. A new methodology to evaluate the effect of insecticides on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in flooded rice (Oryza saliva) was tested. Artificial infestations with fall armyworm larvae (3rd -4th instars) on rice field plots, fenced by metallic cages was used. Larval mortality was evaluated 48 hours after insecticide application by flooding the rice field and counting the floating surviving insects. Lambdacyalothrin CE (7.5 g/ha) and permethrin CE (25 g/ha) provided high larval control (> 95 %). Cifluthrin CE (7.5 g/ha) and deltamethrin CE (2.0 and 2.5 g/ha) caused less mortality (< 70%). The advantages of this new methodology are discussed. Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Fall armyworm; Chemical control. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100025 Insecticidal activity of culture supernatants from Bacillus thuringiensis Berliner strains against Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) larvae Anais da SEB Barreto,Marliton R.; Loguercio,Leandro L.; Valicente,Fernando H.; Paiva,Edilson. Novel vegetative insecticidal proteins (Vips) identified in the supernatant of Bacillus thuringiensis (B.t.) cultures have shown to provide adequate control over a wide spectrum of economically important crop pests. To evaluate the potential applicability of these proteins against fall armyworm (Spodoptera frugiperda Smith) larvae, the most important insect pest for tropical maize, the characteristics and mortality effects of culture supernatants from five B.t. strains were investigated. Striking differences among strains were detected, not only in terms of efficiency in killing the insect, but also regarding to mortality effects of heated and non-heated supernatants, which were used to distinguish the heat-sensitive protein-derived insecticidal fraction... Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Biological control; Fall armyworm; Vegetative insecticidal proteins; Vip genes. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591999000400010 Influência de cultivar e nível de infestação de Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) no rendimento do sorgo Anais da SEB Cortez,Mirko G. R.; Waquil,José M.. An experiment was conducted in the greenhouse to evaluate the effect of sorghum (Sorghum bicolor) cultivars and Spodoptera frugiperda (J. E. Smith) infestations, at different plant developmental stages, on sorghum yield. Second instar larvae of S. frugiperda were used to infest plants. Significant differences (P ≤ 0,05) were found for the factors cultivar and stage of infestation for panicle (size and weight), grain (volume and weight) and 100 grain weight. No significant differences were observed for grain yield between damaged plant and the checks for the cvs. AG 3001 and CMSXS 375. However, the yield loss for the cv. BR 300 ranged from 11,6 to 21,7% for plants infested at 1st (15 days) and 4th stage (15 and 37 days), respectively. Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Fall armyworm; Pest management; Sorghum bicolor; Plant resistance; Pest damage. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000200028 Application rate trials with a nuclear polyhedrosis virus to control Spodoptera frugiperda (Smith) on maize Anais da SEB Cruz,Ivan; Figueiredo,Maria L. C.; Valicente,Fernando H.; Oliveira,António C.. Different concentrations of nuclear polyhedrosis virus were applied as aqueous suspensions using a tractor mounted or a backpack-manual sprayer to control Spodoptera frugiperda (Smith) larvae on maize (Zea mays L.). Larval mortality varied with the application equipment. For the tractor-mounted sprayer application of at least 2.5 x 10(12) P.I.B./ha was necessary to attain a control comparable to that obtained with the backpack-manual sprayer application (70.2%). For this application method it can be used the dose of 2.5 x 10(11) PI.B./ ha, butNPV persistence was very short. A greaterNPV persistence was obtained with doses over 1.25 x 10(12) P.I.B./ha (93.4% mortality). The occurrence of parasitoids in the experimental area increased larval mortality rate... Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Fall armyworm; Baculovirus; Biological control. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100019 Forest fragments' contribution to the natural biological control of Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Maize BABT Sousa,Eduardo Henrique Santana; Matos,Michela Costa Batista; Almeida,Ruanno Silva; Teodoro,Adenir Vieira. The present work evaluated the influence of forest distance on predatory solitary wasps' abundance and richness and its relation to the natural biological control of the fall armyworm (Spodoptera frugiperda Smith - Lepidoptera: Noctuidae) in maize. The study consisted of two parallel lines of six experimental maize plots located at an increasing distance from a forest edge. Four trap-nests were placed in the vertices of each plot of the first line to evaluate the abundance and species richness of predatory solitary wasps. The larvae of the fall armyworm were sampled weekly by inspecting ten randomly chosen plants per plot. Predatory solitary wasp abundance (but not species richness) decreased whilst the fall armyworm abundance increased with the distance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Predatory solitary wasps; Fall armyworm; Ecosystem services; Natural biological control. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400015 Identificação de fontes de resistência em cultivares de milho à spodoptera frugiperda (J. E. Smith, 1797) em casa-de-vegetação BABT Silva,Deise Maria P. da; Oliveira,José V. de; Tabosa,José Nildo; Barros,Reginaldo; Santos,Elton O. dos; Azevedo,Simone S.. Dois experimentos foram estudados em Casa-de-Vegetação, com o objetivo de identificar fontes de resistência em 15 cultivares de milho à Spodoptera frugiperda. Utilizaram-se as cultivares CMS-35, CMS-36, Dina-70, Cargill-525, Pioneer-3210, Pioneer-6875, BR-201, BR-451, AG-106, AG-510, CMS-22, Contimax-322, Jatinã C3 Anão, Cargill-511 e BR-106. As plantas foram infestadas com 30 lagartas recém eclodidas por planta, quando estas apresentavam de 6 a 8 folhas. Após 10 e 14 dias da infestação, foram avaliados os danos através de uma escala visual de notas de 0 a 9. Não houve diferença estatística significativa entre as cultivares para os parâmetros estudados: dano, peso, comprimento e sobrevivência das lagartas. No entanto, as correlações lineares entre o peso x... Tipo: Info:eu-repo/semantics/article Palavras-chave: Resistance; Zea mays; Foliar Damage; Fall armyworm; Larvae weight. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100014 Identificação de fontes de resistência de milho à Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em campo BABT Silva,Deise Maria P. da; Oliveira,José V. de; Tabosa,José Nildo; Barros,Reginaldo; Santos,Elton O. dos; Azevedo,Simone S.. Com o objetivo de identificar fontes de resistência à Spodoptera frugiperda (J. E. Smith, 1797), foram avaliadas as cultivares de milho CMS-22, CMS-35, AG-106, Dina-70, AG-510 e CMS-36 em campo, utilizando-se o delineamento experimental de blocos ao acaso com quatro repetições. Utilizaram-se as variáveis: danos foliares, obtidos através da escala visual de notas, sobrevivência, peso e comprimento das lagartas, 10 dias após a infestação artificial das plantas com lagartas de 1º ínstar. As cultivares diferiram significativamente (P=0,05) apenas com relação aos danos, destacando-se AG-510 como a mais resistente, com dano médio de 5,41 em comparação com CMS-35 e AG-106, as mais suscetíveis, com danos médios de 8,38 e 7,85 respectivamente. Foram determinadas... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Fall armyworm; Plant resistance; Foliar damage; Larvae survival. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000300015 Parasitism capacity of Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) eggs BABT Bueno,Regiane Cristina Oliveira de Freitas; Carneiro,Tatiana Rodrigues; Bueno,Adeney de Freitas; Pratissoli,Dirceu; Fernandes,Odair Aparecido; Vieira,Simone Silva. This work studied the parasitism capacity of Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda (Smith) (Hymenoptera: Scelionidae) eggs at 15, 20, 25, 28, 31, and 35°C, aiming to use this natural enemy in biological control programs in crops where S. frugiperda was considered pest. The parasitism during the first 24 h was 60.90, 81.65, 121.05, 117.55 and 108.55 parasited eggs per female from egg masses of approximately 150 eggs, at 15, 20, 25, 28 and 31°C, respectively. Females of T. remus reached parasitism higher than 80% at 15, 20, 25, 28 and 31ºC at 5, 27, 8, 2, and 2 days, respectively. At 35ºC, there was no parasitism. The highest parasitism rates occurred at 20, 25, 28 and 31°C. T. remus female longevity varied from 15.7 to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eggs parasitoid; Fall armyworm; Biological control; Integrated Pest Management. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100017 Effectiveness of Bacillus thuringiensis strains against Spodoptera frugiperda (lepidoptera: noctuidae) BJM Polanczyk,Ricardo Antonio; Silva,Rogério Fernando Pires da; Fiuza,Lidia Mariana. The fall armyworm (Spodoptera frugiperda) is one of the most important pests of maize, causing up to 20% production losses when defoliation occurs near to flowering, or even complete destruction of plants. Among the alternatives to control this pest, the use of Bacillus thuringiensis (Bt) has gained attention due to its efficiency and low impact on natural enemies. Strains Bt dendrolimus HD 37, Bt aizawai HD 68, Bt kurstaki HD 73, Bt darmstadiensis HD 146, and Bt thuringiensis 4412 were tested against second instar larvae in in vivo assays. Suspensions of Bt aizawai HD 68 and Bt thuringiensis 4412, containing 3 x 10(8) cells/ml, induced mortality of 100% and 80.4%, respectively. To test virulence, cell concentrations of 8 x 10(5) to 3 x 10(8) cells/ml of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus thuringiensis; Spodoptera frugiperda; Biological control; Bioassays; Fall armyworm. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000300003 Extraction and isolation of anti-tryptic castor-bean (Ricinus communis L.) substances and their effects on Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae) Chilean J. Agric. Res. Ramos,Vinicius; Alves,Dejane; Braga,Mariana; Carvalho,Geraldo; Santos,Custódio. The search for alternative methods aiming to the control of agricultural pests that cause less environmental impact has been a recurring theme in several studies. For this purpose, the factors influencing the extraction and isolation of the trypsin inhibitor found in castor-bean (Ricinus communis L.) cake and seeds were studied, and its effect on the development of fall armyworm Spodoptera frugiperda (Smith, 1797) was evaluated. Therefore, the type and proportion of the solvent (w/v), extraction period and oil content were evaluated. The castor-bean cake extract with oil content of 20% in water at a ratio 1:40 (w/v) for 30 min showed the greatest trypsin inhibition, with 21.23 mUTI g-1 seed. The isolation of the trypsin inhibitor contained in the extract... Tipo: Journal article Palavras-chave: Zea mays; Fall armyworm; Ricinus communis; Trypsin inhibitor; Alternative control. Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200007 Bioactivity of a water extract of boldus (Peumus boldus Molina) against Spodoptera frugiperda (J.E. Smith) and Helicoverpa zea Boddie (Lepidoptera: Noctuidae) Chilean J. Agric. Res. 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 Nitrogen fertilization sources and insecticidal activity of aqueous seeds extract of Carica papaya against Spodoptera frugiperda in maize Ciencia e Investigación Agraria Figueroa-Brito,Rodolfo; Villa-Ayala,Patricia; López-Olguín,Jesús F; Huerta-de la Peña,Arturo; Pacheco-Aguilar,Juan R; Ramos-López,Miguel A. R. Figueroa-Brito, P. Villa-Ayala, J.F. López-Olguín, A. Huerta-de la Pena, J.R. Pacheco-Aguilar, and M.A. Ramos-López. 2013. Nitrogen fertilization sources and insecticidal activity of aqueous seeds extract of Carica papaya against Spodoptera frugiperda in maize. Cien. Inv. Agr. 40(3): 567-577. The damage caused by the fall armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) to vegetative-stage maize cultivated with chemical nitrogen fertilizers, vermicompost, and Carica papaya L. (Caricaceae) seed extract was estimated. Each shoot was infested with one first instar larva of S. frugiperda. The variables measured included the percentage of germination, length of the second and fifth leaves, stem diameter and plant height, and the estimation of... Tipo: Journal article Palavras-chave: Aqueous extract; Caricaceae; Chemical fertilizers; Damage; Fall armyworm; Spodoptera frugiperda. Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300009 Euplectrus furnius parasitizing Spodoptera frugiperda in maize in Brazil Ciência Rural Sturza,Vinícius Soares; Dequech,Sônia Thereza Bastos; Tavares,Marcelo Teixeira; Guths,Candice; Walker,Michel Pires; Bolzan,Anderson. Brazil is among the world's biggest maize producers and fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), is the main insect pest on this crop in the country. Despite the importance of its natural enemies, there still is a lack of information about parasitoids species that attack this insect-pest, such as larval parasitoids. This research reports Euplectrus furnius Walker (Hymenoptera: Eulophidae) parasitizing S. fugiperda larvae on maize crop in Brazil. Tipo: Info:eu-repo/semantics/article Palavras-chave: Larval parasitoid; Fall armyworm; Zea mays L.. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001100006 Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda Ciência Rural 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 Larval development of Spodoptera eridania and Spodoptera frugiperda fed on fresh ear of field corn expressing the Bt proteins (Cry1F and Cry1F + Cry1A.105 + Cry2Ab2) Ciência Rural Bortolotto,Orcial Ceolin; Bueno,Adeney de Freitas; Queiroz,Ana Paula de; Silva,Gabriela Vieira. ABSTRACT: The objective of this study was to evaluate extent of larval period, larval survival (%), food consumption, and pupal biomass of Spodoptera eridania and Spodoptera frugiperda (Lepidoptera: Noctuidae ) fed on fresh ears of field corn expressing Bt proteins (Cry1F and Cry1F+Cry1A.105+Cry2Ab2). Larvae of Spodoptera spp. survived less than two days when they consumed Bt corncobs and showed 100% mortality. Spodoptera eridania reared on non-Bt corn cobs showed higher larval development (21.6 days) than S. frugiperda (18.4 days) and lower viability (56.4% and 80.2% for S. eridania and S. frugiperda , respectively). A higher amount of corn grains was consumed by S. eridania (5.4g) than by S. frugiperda (3.9g). In summary, this study demonstrated that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Integrated pest management; Fall armyworm; Southern armyworm; Varietal resistance. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101898 Ocimum basilicum essential oil combined with deltamethrin to improve the management of Spodoptera frugiperda Ciência e Agrotecnologia Silva,Sérgio Macedo; Cunha,João Paulo Arantes Rodrigues da; Carvalho,Stephan Malfitano de; Zandonadi,César Henrique Souza; Martins,Rafael Castro; Chang,Roberto. ABSTRACT For an important and expensive crop such as corn, the resistance of Spodoptera frugiperda J.E. Smith to various pesticides has led to research throughout the world for a potential insecticide from a natural source. For the management of pest resistance, natural compounds associated with synthetic insecticides can be a promising tool because they can reduce the application of the synthetics molecules while maintaining their effectiveness and promoting the control of the pests. Linalool is a potential insecticide that is easily obtained because it is found in high concentrations in the essential oil of Ocimum basilicum L. Therefore, the present study aimed to evaluate the toxicity of this essential oil and its combination with deltamethrin to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural insecticides; Linalool; Fall armyworm; Pyrethroid; Synergism.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000600665 Aerial, ground and chemigation spray deposition on corn for the control of spodoptera frugiperda (lepidoptera: noctuidae) Ciência e Agrotecnologia 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 Registros recuperados: 40 Primeira ... 1 2 ... Última

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