【摘要】 用40%辛硫磷乳油、50%敌·辛乳油、甲氰菊酯乳油、1%苦参碱4种药剂的稀释液,在大栗鳃金龟幼虫距地表最近时,用根部追肥器在土壤中注射农药和用喷壶在草面上喷洒2种不同施药方式防治大栗鳃金龟3龄幼虫。结果表明:用根部追肥器在土壤中注射40%辛硫磷乳油400倍液和50%敌·辛乳油300倍液防治大栗鳃金龟幼虫效果分别达到95.87%和97.96%,比用表面喷洒农药的防治效果显著。更多还原

【Abstract】 The objective of this study was to compare the effects of injection 40% Phoxim EC,50% Trichlorphon+Phoxim EC,Fenpropathrin EC,1% Matrine in the soil with the ertilization of the root device and spraying pesticides in the grass surface with Watering can two differents application methods to control Melolontha hippocastani mongolica three age larva when they were the nearest distance from the ground surface.The experimental results demonstrated that:Control effects of injection 40% Phoxim EC 400 times and 50% Trichlorphon+Phoxim EC 300 times with the ertilization of the root device were 95.87% and 97.96%,significantly than spraying pesticides.更多还原