5%丁硫克百威颗粒剂防治稻水象甲幼虫的初步研究

Control Effects of Carbosulfan 5% GR on Lissorhoptrus oryzophilus Larva

以5%丁硫克百威颗粒剂为供试药剂,设计秧田期和移栽7 d后两个时期撒施,考察其对稻水象甲幼虫的防治效果以及对水稻产量的影响。结果表明:秧田期施药防治能有效降低虫口密度,减轻大田防治压力;与空白对照相比,秧田期防治和移栽7 d后防治的水稻产量分别提高了107.52%和60.26%。

With Carbosulfan 5% GR as the experimental material, the study sprayed it at the nursery stage and 7 d after the transplantation, and observed it control effects on Lissorhoptrus oryzophilus larva and the influence on the rice yield. The results indicated that applying Carbosulfan 5% GR at the nursery stage could effectively decrease the pest population density and relieve the pressure of pest control in the field. The yields of rice with the pesticide applied at the nursery stage and 7 d after the transplantation increased by 107.52% and 60.26%, respectively than that of the control.