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On-line version ISSN 1678-4596
BRONDANI, Diogo et al. Occurrence of insects in the aerial part of soybean in function of the weed control systems and conventional and genetically modified herbicide-tolerant varieties. Cienc. Rural [online]. 2008, vol.38, n.8, pp.2132-2137. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782008000800007.
The experiment was carried out during the crop season 2004/05, in Cruz Alta, RS, Brazil at Fundação Centro de Experimentação e Pesquisa (FUNDACEP) experimental area. The objective was to study the occurrence of insects in conventional and genetically modified herbicide-tolerant soybean. The seeding was done in November, 2004. The experimental design was randomized blocks and factorial scheme. The factor A was represented by the varieties 'CD 214 RR' (glyphosate-tolerant) and 'CD 201' (conventional). The factor B was composed by weed management systems, were b1- without weed control, b2- mechanical control and b3- chemical control with conventional herbicides. An additional treatment was used, where glyphosate application on 'CD 214 RR' was done. Soybean genetically modified herbicide-tolerant and glyphosate application had effects on some pests and beneficial insects in soybean.
Keywords : pests; resistent soybean; beneficial insects; chemical control.