甘蔗赭色鸟喙象药剂防治效果分析

为试验筛选出高效低毒、经济环保的农药用于甘蔗赭色鸟喙象防治,开展了8个处理的大田甘蔗一年宿根药剂防治试验。结果表明,在甘蔗大培土时,每公顷施用18%氟腈·毒死蜱FS 7500 mL,对甘蔗赭色鸟喙象的防治效果最好,对成虫的防效为72.19%、对幼虫的防效为79.07%;每公顷施用40%氟·噻E 900 mL、成虫出土盛期再选用6%阿维·氯苯酰SC 600 mL喷雾防治一次,对甘蔗赭色鸟喙象的防治效果较好,对成虫的防效为67.55%、对幼虫的防效为41.86%;每公顷施用40%氟·噻E 900 mL、成虫出土盛期再选用2.5%高效氯氟氰菊酯EC 600 mL+5%虱螨脲EC 600 mL喷雾防治一次,对甘蔗赭色鸟喙象的防治效果好,对成虫的防效为44.37%、对幼虫的防效为67.44%。

Analysis on the Control Effect of Pesticide on Otidognathus rubriceps Chevrolat

In order to screen out pesticides with high efficiency,low toxicity and economic and environmental protection for controlling Otidognathus rubriceps Chevrolat in sugarcane,a pesticide control experiment of eight treatments was carried out in a ratoon sugarcane field.The results showed that 18% fluoride acrylic-Dursban 7500 mL per hectare had the best control effect on Otidognathus rubriceps Chevrolat,72.19% for adults and 79.07% for larvae.Better control effect on Ocher rostrum were observed by application of 40% fluorine-thiamethoxam and 6% arvey-chlorobenzene acyl during adult emergence period at the rates of 900 mL and 600 mL per hectare,respectively.The relative control effects on adults and larvae was 67.55% and 41.86%,respectively.Application of 40% fluorine-thiamethoxam at the rate of 900 mL per hectare,meantime spraying one time 2.5% cyhalothrin 600 mL and 5% lufenuron 600 mL in the stage of max adults emergence had much better effect.The control effect on adults and larvae were 44.37% and 67.44%,respectively.