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EFICIÊNCIA DE PRODUT OS VEGETAIS NO CONTROLE DA LAGARTA-DO-CARTUCHO-DO-MILHO Spodoptera frugiperda (J.E.SMITH, 1797) (LEPIDOPTERA: NOCTUIDAE) Efficience of extracts of plantas in control of fall armyworm in corn Spodoptera frugiperda (J.E.SMITH, 1797) (Lepidoptera : Noctuidae)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Souza, Marcelo Oliveira, Silva De Roel, Antonia Railda Arruda, Eduardo Marques, Ana Souza |
| Copyright Year | 2007 |
| Abstract | RESUMOO presente trabalho teve por objetivo avaliar a eficiencia de produtos vegetais no controle de Spodoptera frugiperda (J.E.Smith,1797) na cultura do milho. Os experimentos foram instalados, nos anos de 2002 e 2004, com a pulverizacao dos produtos vegetais emcinco tratamentos, e quatro repeticoes. No ano de 2002, os produtos testados foram: Azadirachta indica A. Juss. (extrato aquoso 2%),e oleo a 1%; Melia azedarach L. (extrato aquoso 2%); Quassia amara L. (extrato aquoso 2%); oleo de nim, Azadirachta indica 1 e 2%.No ano de 2004, os produtos testados foram: A. indica (extrato aquoso 5%), e oleo a 2%, M. azedarach (extrato aquoso 5%), Trichiliapallida Sw. (extrato aquoso 5%). As avaliacoes, porcentagem de infestacao da lagarta-do-cartucho por parcela, foram efetuadas aostres, sete e dez dias apos a pulverizacao dos extratos. Conclui-se que extratos aquosos das plantas A. indica 2%, T.pallida 5%, Q.amara 2% e M. azedarach 2% e 5% e oleo de A. indica 1% e 2% com adicao de tenso ativo nao ionico, nao possuem eficiencianecessaria como unico metodo de controle da largarta-do-cartucho S. frugiperda em condicoes de campo. Os produtos comecam aafetar o desenvolvimento da lagarta apos alguns dias da ingestao das folhas pulverizadas, observado na avaliacao efetuada aos sete diasapos a aplicacao dos extratos.Termos para indexacao: Spodoptera frugiperda, controle de pragas, inseticidas vegetais.ABSTRACTThe objective of this work was to study the efficiency of vegetable pesticides in the control of Spodoptera frugiperda(J.E.Smith, 1797) in corn culture. The experiments were installed, in the years of 2002 and 2004, with the spraying of the vegetableproducts in five treatments, and four repetitions. In the year of 2002 the tested products were: Azadirachta indica A. Juss (aqueousextract 2%), and oil at 1%; Melia azedarach L. (aqueous extract 2%); Quassia amara L. (aqueous extract 2%); nim oil, Azadirachtaindica 1 and 2%. In the year of 2004 the tested products were: A. indica (aqueous extract 5%), and oil at 2%, M. azedarach (aqueousextract 5%), Trichilia pallida Sw. (aqueous extract 5%). The evaluations like percentage of infestation of the fall armyworm per plot,were made three, seven and ten days after the extracts application respectively. It was possible to verify that aqueous extracts of theplants A. indica 2%, T. pallida 5%, Q. amara 2% and M. azedarach 2% and 5% and A. indica oil 1% and 2% with addition of nonionic active tense, dont possess necessary efficiency as the only control method of the fall armyworm S. frugiperda in fieldconditions. The products begin to affect the development of fall armyworms some days after the ingestion of the powdered leaves,observed in the seven days after the extracts application.Index terms: Spodoptera frugiperda, pests control, botanical pesticides.(Recebido em 4 de outubro de 2005 e aprovado em 24 de agosto de 2006) |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.scielo.br/pdf/cagro/v31n2/a09v31n2.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
