Influence of Buprofezin on Natural Enemies and Non-target Insects in the Paddy Field

Effect of Buprofezin on Oviposition of Brown Planthopper, <i>Nilaparvata lugens</i>, at Sub-lethal Dose

“…22 The previous papers proved buprofezin did not reduce natural enemies of BPH. 15,16) It was also shown that buprofezin decreased the number of eggs laid or hatchability of BPH at the practical dose. 17 And the results obtained in this paper make it clear that buprofezin hardly increases or somewhat decreases the number of nymphs of the next generation of N lugens even at the sub-lethal doses.…”

“…Heinrichs et al and Kanaoka et al reported that buprofezin had little adverse effect on the natural enemies and non-target arthropod species and such property is considered to be one of factors for the fact that buprofezin has never caused resurgence. 15,16) It was also shown that buprofezin decreased the number of oviposition or hatchability and shortened the life span of female adults of planthopper when the chemical was applied at the practical dose. 17 However, the effects are not examined at sub-lethal dose, which condition is directly related to resurgence problems in other conventional insecticides.…”