Ensaio de combate a ninhos do cupim Cornitermes cumulans (Kollar, 1832)

O presente trabalho foi realizado com a finalidade de reiniciar pesquisas de com bate químico ao cupim de monte Cornitermes cumulans em pastagem. Cinco produtos foram testados com tal objetivo, totalizando cinco tratamentos: A) aldoxicarbe 1,0g; B) bifentrina 0,2g; C) profenofós 1,0g; D) dodecacloro 0,18 g; E) fentiom 1,0g. As quantidades são de ingrediente ativo aplicado por cupinzeiro. A análise dos resultados mostrou que o dodecacloro e o fentiom foram os melhores tratamentos dessa seleção, com 100% de mortalidade dos ninhos. Five different insecticides were applied into the mounds of a termite C. cumulans. Fifty mounds were measured, divided in 5 groups (10 nests each) and had pesticide applied. Insecticides were introduced into the center of the nests through a 50-60 cm long canal made from the top to the nucleus with a steel bar. The treatments were as follows: A) 5% granular aldoxicarb (1g); B) 10% EC biphenthrin (0.2g); C) 50% EC profenophos (1g); D) 0.45% granular dodecachlor (0,18g); E)50% EC fenthion (1g). The quantities between parenthesis are of active ingredients introduced per nest. Five months after the application mounds were completely opened. The mortality was: A) 40%; B) 70%; C) 80%; D) 100%; E) 100%.