用土农药防治果树红蜘蛛吴社全由于果园长期大量使用化学农药，致使红蜘蛛的抗药性越来越强，许多化学农药对其防效差，甚至无效，有的农药对其生长繁殖还有刺激作用（如菊酯类农药）。应用上农药防治果树红蜘蛛，效果良好。１．油洗合剂。先用１—２千克清水将洗衣粉０．... Pesticide Prevention and Control of Fruit Tree Red Spider Wushe Quan Due to the long-term orchestration of chemical pesticides in orchards, the resistance of moths to spiders is getting stronger and stronger. Many chemical pesticides have poor or even ineffective effects on their growth and reproduction. Such as pyrethroid pesticides). Application of pesticides on fruit tree spider mite, the effect is good. 1. Oil wash mixture. First with 1-2 kg of water will detergent 0. ...