Abstract
Susceptibility of Curculio sikkimensis adults to 39 commercial insecticides were evaluated by body dipping method, Among them sixteen insecticides of chlorpyrifos, fenitrothion, fiponil, phenthoate, benfuracarb, thiodicaib, carbosulfan, bifenthrin, cypermethrin, $\lambda$-cyhalothrin, deltamethrin, clothianidin, acetamiprid+diflubenzuron, etofenpox+diazinon, esfenvalerate+fenitrothion and furathiocarb +diflubenzuron showed 100% mortality. Insecticides with over 80% residual effect at 1 day after treatment were phenthoate, benfuracarb and thiodicarb (95.0, 82.5, and 85.0%, respectively). However, after that, it was dropped rapidly. Other insecticides showed low residual effect. In the control efficacy test on C. sikkimensis, insecticides with over 90% control values at 1 day after treatment were phenthoate, thiodicarb, fipronil, acetamiprid+bifenthrin and furathiocarb+diflubenzuron. However, all insecticides from 2 days after treatment were over 90%.
시판되고 있는 39종의 살충제 중 밤바구미 성충(Curculio sikkimensis)에 대한 우수 살충제를 탐색하고, 선발된 약제로 야외포장에서 잔효성과 방제효과를 조사하였다. 실내검정에서 39종의 살충제 중 100%의 살충율을 나타낸 약제는 chlorpyrifos, fenitrothion, phenthoate, benfuracarb, thiodicarb, carbosulfan, bifenthrin, cypermethrin, $\lambda$-cyhalothrin, deltamethrin, clothianidin, acetamiprid+bifenthrin, etofenprox+diazinon, esfenvalerate+fenitrothion, furathiocarb+diflubenzuron, fipronil 등 16종이었다. 잔효성 시험에서는 phenthoate, benfuracarb, thiodicarb가 1일째까지는 80% 이상을 나타내었으나 그 이후로는 급속히 떨어졌다. 그 외 약제들도 잔효성은 낮았다. 야외포장 방제효과 시험에서는 phenthoate, thiodicarb, fipronil, acetamiprid+bifenthrin, furathiocarb+diflubenzuron이 1일째부터 90% 이상의 높은 방제효과를 나타내었다.
