Transgenic Bt maize to control ear corn pests

Tuesday, November 18, 2014: 2:35 PM
Portland Ballroom 254 (Oregon Convention Center)
Fernando Vinha , Centro Universitário Moura Lacerda, Sertãozinho SP, Brazil
Eduardo Ivan , Biocontrol, Cajuru- SP, Brazil
Bruna Zanatto , Centro Universitário Moura Lacerda, São Simão SP, Brazil
Michele Berigo , Centro Universitário Moura Lacerda, Luiz Antonio -SP, Brazil
Mauricio Masson , Centro Universitário Moura Lacerda, Ribeirão Preto - SP, Brazil
Alexandre Pinto , BUG- Agentes Biológicos, Piracicaba, Brazil
Antonio C. Santos , Dow AgroSciences, Indianapolis, IN
Luiz Henrique Marques , Mogi Mirim Field Station Leader - Crop Protection R&D, Dow AgroSciences, Mogi Mirim, Brazil
This study aimed to evaluate the efficacy of transgenic Bt corn to control ear corn pests. Four treatments were tested: (1) Herculex™ (Cry1F PAT; 2B707 Hx); (2) PowerCore™(Cry1A.105 Cry2Ab2 Cry1F PAT EPSPS; 2B707 PW); (3) conventional maize 2B707 (control, without control); (4) 2B707 conventional corn with insecticide application (control 2). The experimental design was randomized blocks design where each treatment was repeated 5 times in plots of 400 m2. In reproductive stage R3, 25 ear corn per plot were harvested and the number of caterpillars and larvae present and the percentage of damaged ear corn were evaluated. The PowerCore™ Bt corn was the only effective control of larvae of Helicoverpa zea and Spodoptera frugiperda in ear corn.

Keywords: agricultural pest, Lepidoptera, Diptera.

See more of: MS: IPM: An International Organic Farming Strategy on Invasive Insect Species
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