两种药剂组合防治多斑柞跳象的田间药效试验

Field Efficacy Test of Two Pharmaceutical Combination in Control of Rhynchaenus maculosus

为有效防控柞园害虫多斑柞跳象,在小区试验基础上进行田间药效试验。结果表明,“蚕敌一扫光+乐果”对潜叶幼虫有较好的防效,可达90%左右;“敌克+敌克1号”“蚕敌一扫光+乐果”对当代成虫均有较好的防效。柞园防治多斑柞跳象可根据柞园实际情况选择药剂组合,潜叶幼虫期无蚕柞园推荐使用“蚕敌一扫光+乐果”组合;当代成虫期无蚕柞园用“蚕敌一扫光+乐果”,有蚕柞园用“敌克+敌克1号”进行防治。

To effectively control Rhynchaenus maculosus of oak orchard,the field efficacy test based on the plot experiment was carried out.The results showed that Candiyisaoguang+Dimethoate had a good control effect on leaf miner larvae,reaching around 90%.Dike+Dike No.1,Candiyisaoguang+Dimethoate had better control effect on contemporary adult insects.Different combinations of insecticides can be applied according to the actual situations of the oak orchard to control Rhynchaenus maculosus.The combination of Candiyisaoguang+Dimethoate is recommended in the oak orchard without silkworms during the larvae stage and adult stage of leaf miner,while Dike+Dike No.1 is recommended for oak orchard with silkworms when the leaf miners are at their adult stage.