Data/hora: 11/06/2024 07:21:00

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 13/03/2012
Data da última atualização: | 28/09/2017
Autoria: | CRUZ, I.; FIGUEIREDO, M. de L. C.; SILVA, R. B. da; SILVA, I. F. da; PAULA, C. de S.; FOSTER, J. E.
Afiliação: | IVAN CRUZ, CNPMS; MARIA DE LOURDES CORRÊA FIGUEIREDO, BOLSISTA; RAFAEL BRAGA DA SILVA, BOLSISTA; IVANA FERNANDES DA SILVA, BOLSISTA; CRISTIANE DE SOUZA PAULA, BOLSISTA; JOHN E. FOSTER, UNIVERSITY OF NEBRASKA.
Título: | Using sex pheromone traps in the decision-making process for pesticide application against fall armyworm (Spodoptera frugiperda [Smith] [Lepidoptera: Noctuidae]) larvae in maize.
Ano de publicação: | 2012
Fonte/Imprenta: | International Journal of Pest Management, London, v. 58, n. 1, p. 83-90, Jan./Mar. 2012.
DOI: | 10.1080/09670874.2012.655702
Idioma: | Inglês
Conteúdo: | The fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), is a major pest of maize and frequently demands control measures. The timing of insecticide application is a key factor in determining its efficiency, so an experiment was designed to investigate this. Application of insecticide was based on three criteria: (i) the number of trap-caught moths in a Delta-type trap with a commercial sex pheromone lure placed in the center of the target area, soon after plant emergence; (ii) the percentage of plants exhibiting pinhole-type damage (10% or 20%) and (iii) the percentage of plants exhibiting shot hole-type damage (10% or 20%) compared to a check plot without any control measures. We found that the number of trap-caught moths was, compared to the other methods, the best means of deciding on insecticide application in maize to control the fall armyworm. Using pheromone traps, we obtained the best performance of the insecticide Spinosad, causing 90% larval mortality. Without insecticide application, maize yield reduction due to fall armyworm larva damage was 39%.
Thesagro: | Controle integrado; Controle químico; Milho; Praga de planta; Zea Mays.
Thesaurus Nal: | Chemical control; Corn; Integrated pest management; Plant pests.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (24303-1) - UPC - AP - DD -  -  -  - DIS