African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Agronomic efficiency of Bacillus thuringiensis (Bt) maize hybrids in pests control on Lucas do Rio Verde city, State of Mato Grosso, Brazil

Ricardo Shigueru Okumura1*, Daiane de Cinque Mariano2, Rivanildo Dallacort2, Thiago Ometto Zorzenoni3, Paulo Vicente Contador Zaccheo4, Cândido Ferreira de Oliveira Neto1, Heráclito Eugênio Oliveira da Conceição1 and Allan Klynger da Silva Lobato1
1Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia, Paragominas, Brazil. 2Departamento de Agronomia, Universidade do Estado de Mato Grosso, Tangará da Serra, Brazil. 3Engenheiro Agrônomo daDedini S/A Indústrias de Base, Piracicaba, Brazil. 4Pesquisadordo Instituto Agronômico do Paraná, Londrina, Brazil.
Email: [email protected]

  •  Accepted: 10 May 2013
  •  Published: 23 May 2013

Abstract

The present study aimed to evaluate under field conditions, the effect of genetically modified maize hybridsin control of Spodoptera frugiperda, Elasmopalpus lignosellus and Diatraea saccharalis, to identify Trais which is more efficient in controlling this complex caterpillars. The experiment was conducted in city of Lucas doRio Verde, State of Mato Grosso, Brazil, the experimental design was randomized blocks with six treatments consist of transgenic materials: Cry1Ab, Cry1F, Cry1A.105+ Cry2Ab2 and Vip3Aa, and the conventional material with and without insecticide application. For the environmental conditions of this study, the genetic materials with biotechnology Cry1F, Cry1A.105 +Cry2Ab2 and Vip3Aa entered the hybrids were the highest yields of maize, as well as those with lower intensities damage from S. frugiperda. Regarding the control of E. lignosellus, only the conventional and hybrid technology Vip3Aa were susceptible to this insect pest incidence.All biotechnology inserted into maize hybrids were effective for control of D. saccharalis.

 

Key words: Bacillus thuringiensis, Spodoptera frugiperda, Elasmopalpus lignosellus, Diatraea saccharalis.