久效磷是一种高效内吸杀虫剂,对棉花、水稻、麦类、玉米、烟草及各种林木上多种刺吸式口器和咀嚼口器害虫有较好的防治效果。我们于1986～1987年,在防治大袋蛾方面用久效磷根部注射做了多次多点试验,并在全区69镇进行推广示范,灭虫效果较好。一、试验材料和方法(一)材料1.农药:40%久效磷乳剂(青岛农药厂),50%甲胺磷乳油(宁国农药厂),40%氧乐果乳剂(蚌埠农药厂)。 Monocrotophos is a highly effective systemic insecticide that has good control effects on many kinds of sucking mouthparts and chewing mouthparts on cotton, rice, wheat, corn, tobacco and various trees. In 1986 ~ 1987, we conducted multiple-point experiments with monocrotophos injection in the prevention and control of large-moth moths and carried out demonstration and extermination in 69 towns in the whole region. First, the test materials and methods (a) materials 1. Pesticide: 40% monocrotophos emulsion (Qingdao Pesticide Factory), 50% methamidophos EC (Ningguo Pesticide Factory), 40% of Omethoate (Bengbu Pesticide Factory).