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Efeito do fomesafen + fluazifop-p-butil associados com inseticidas no controle das plantas daninhas na cultura da soja

2012; UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; Volume: 7; Issue: 4 Linguagem: Inglês

10.5039/agraria.v7i4a1842

1981-1160

Bernardo Piccolo Moreira Rezende, Cássio Jardim Tavares, Rogério Ernani Marangoni, Paulo César Ribeiro da Cunha, Adriano Jakelaitis,

Soil Management and Crop Yield

The objective of this study was to evaluate the effects of combined application of fomesafen + fluazifop-p-butyl associated with insecticides clorfluazuron, chlorpyriphos, methyl parathion and lambdacyhalothrin + thiamethoxan in weed control in soybeans. A field experiment was conducted in randomized blocks with six replications. The treatments were the application of ready mix of post-emergence herbicides fomesafen + fluazifop-p-butyl at doses of 200 and 250 g ha-1 respectively, and the joint application of these insecticides with clorfluazuron (37.5 g ha-1), chlorpyriphos (480 g ha-1), methyl parathion (540 g ha-1) and ready mix of lambdacyhalothrin + thiamethoxan (22.4 + 31 g ha-1 respectively). Two controls were used consisting of plots not weeded and hoed. The spraying was performed at the V3 stage of soybean at 16 days after emergence. Insecticides mixed with the herbicides sprayed promoted intoxication between 5.5 and 13.3% at 5 days after treatment in soybeans, but with full recovery of the same one month after application, thus not affecting the yield of crop. The weed control was not affected by the association of herbicides with insecticides.