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以3%克百威GR和5%杀单.毒死蜱GR为对照,进行40%氯虫.噻虫嗪WG防治甘蔗螟虫田间药效试验。结果表明:40%氯虫.噻虫嗪WG 0.75kg/ha、0.60kg/ha处理对甘蔗螟虫具有显著防效,能有效控制甘蔗螟虫危害。其中,40%氯虫.噻虫嗪WG 0.75kg/ha防效最高,药后30d、60d、90d防效分别达84.66%、92.52%和87.51%,极显著高于3%克百威GR和5%杀单.毒死蜱GR;0.60 kg/ha处理药后30d、60d、90d防效分别为80.37%、86.42%和82.83%,显著高于3%克百威GR、略优于5%杀单.毒死蜱GR。且对甘蔗安全,对天敌无危害,值得推广应用。
The efficacy of thiamethoxam WG in combating sugarcane borer was evaluated in field experiments with 3% carbofuran GR and 5% killed chlorpyrifos GR as control. The results showed that the treatment with 40% Chlorantraniliprole and Thiamethoxam WG 0.75kg / ha and 0.60kg / ha had significant control effect on sugarcane borer, which could effectively control the damage of sugarcane borer. Thiamethoxam 40% WG0.6kg / ha had the highest control effect, and the control effect was 84.66%, 92.52% and 87.51% at 30d, 60d and 90d respectively, which was significantly higher than that of 3% carbofuran and 5% kill chlorpyrifos GR; 0.60 kg / ha treatment after 30d, 60d, 90d control efficiency were 80.37%, 86.42% and 82.83%, significantly higher than the 3% carbofuran slightly better than 5% Chlorpyrifos GR. And the safety of sugarcane, no harm to natural enemies, it is worth promoting application.