应用化学药剂控制松毛虫暴发成灾仍是目前重要的防治手段,但是,一些林业生产单位在应用化学药剂防治松毛虫时,时常发生因盲目加大用药量,片面追求高虫口死亡率,致使用药林区及周围水田、塘坝内的水生生物和非目标昆虫大量中毒死亡。其结果 Application of chemical agents to control the outbreak of dendrolimus is still an important prevention and control measures, however, some forestry production units in the application of chemical agents to control pine caterpillars, often due to blindly increasing the dosage, one-sided pursuit of high population mortality, resulting in the use of drugs A large number of aquatic organisms and non-target insects in the paddy fields and surrounding paddy fields in the forest area were poisoned and died. the result