粘虫、玉米螟是玉米和高粱的主要害虫,对作物产量影响很大。去年,我们使用25％对硫磷微胶囊剂,收到一次投药兼治两虫的效果。这种对硫磷微胶囊使用安全,防效高,成本低。具体做法是:把25％对硫磷微胶囊剂制成0.25％对硫磷微胶囊颗粒剂,在玉米发育的心叶中期,玉米螟百株卵块为4块,花叶率为2％,粘虫的虫龄在2～4龄时撒药防治。每亩用0.25％对硫磷微胶囊颗粒剂8斤,防治粘虫和玉米螟效果均在90％以上。如果玉米螟发生严重,还可 Armyworms and corn borer are major pests of corn and sorghum and have a large impact on crop yield. Last year, we used 25% parathion microcapsules and received a single administration of both pests. This parathion microcapsules use safe, high efficiency, low cost. The specific approach is: 25% parathion microcapsule made of 0.25% parathion microcapsule granules in the middle of the heart of corn development, corn borer one hundred egg block is 4, the rate of 2% mosaic, sticky Pest insects in the 2 ~ 4 age when the drug control. Per mu with 0.25% parathion microcapsule granules 8 pounds, the prevention and control of armyworms and corn borer effects are more than 90%. If the corn borer serious, but also