| Title: | Regional pest suppression associated with adoption of Cry1Ac soybean benefits pest management in tropical agriculture |
| Author(s): | Horikoshi RJ; Dourado PM; Bernardi O; Willse A; Godoy WA; Omoto C; Bueno AF; Martinelli S; Berger GU; Head GP; Correa AS; |
| Address: | "Regulatory Science, Bayer Crop Science, Sao Paulo, Brazil. Departamento de Entomologia e Acarologia, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de Sao Paulo, Piracicaba, Brazil. Departamento de Defesa Fitossanitaria, Universidade Federal de Santa Maria, Santa Maria, Brazil. Regulatory Science, Bayer Crop Science, Chesterfield, MO, USA. Embrapa Soja, Empresa Brasileira de Pesquisa Agropecuaria, Londrina, Brazil" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Bacillus thuringiensis (Bt) crops have been adopted worldwide, providing high-level protection from insect pests. Furthermore, Bt crops preserve natural enemies, promote higher yield, and economically benefit farmers. Although regional pest suppression by widespread Bt crop adoption has been observed in temperate regions, this possibility remains uncertain in tropical areas due to the high diversity of alternative hosts and mild winters. RESULTS: Evidence of regional reduction in insecticide use across areas was observed in Brazil where Cry1Ac soybean has been grown since 2013, with up to 50% reduction in the number of insecticide sprays for managing lepidopteran pests on non-Bt soybean observed at specific locations from 2012 to 2019. Pest monitoring data from four mesoregions across 5 years of commercial plantings of Cry1Ac soybean from December 2014 to July 2019 showed reduced numbers of Chrysodeixis includens moths captured in pheromone traps across years at all locations. The number of Helicoverpa spp. moths captured also was reduced at three locations. CONCLUSION: We provide evidence for regional suppression of lepidopteran pests and reduced insecticide use with the widespread adoption of Cry1Ac soybean in Brazil, bringing economic, social and environmental benefits. (c) 2022 Society of Chemical Industry" |
| Keywords: | "Agriculture Animals *Bacillus thuringiensis/genetics Bacterial Proteins/genetics Crops, Agricultural Endotoxins Hemolysin Proteins/genetics *Insecticides *Moths Pest Control, Biological Plants, Genetically Modified Soybeans/genetics Bt plant Chrysodeixis;" |
| Notes: | "MedlineHorikoshi, Renato J Dourado, Patrick M Bernardi, Oderlei Willse, Alan Godoy, Wesley Ac Omoto, Celso Bueno, Adeney de F Martinelli, Samuel Berger, Geraldo U Head, Graham P Correa, Alberto S eng Conselho Nacional de Desenvolvimento Cientifico e Tecnologico/ Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ England 2022/06/11 Pest Manag Sci. 2022 Oct; 78(10):4166-4172. doi: 10.1002/ps.7034. Epub 2022 Jun 30" |
