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柑桔红蜘蛛是当前柑桔上严重害虫之一,在四川地区,每年盛发于4—5月间,若遇春季高温、干旱,往往猖獗成灾,6月以后虫口密度降低,因此,做好3—5月间的防治工作,是保护树势,保证丰产的有效措施。一般果园常用石硫合剂、乐果进行防治,取得一定效果,但该药只能杀虫,不能杀卵。近几年来,应用20％三氯杀螨砜防治,杀卵效果非常显著,但对成虫的效果,表现缓
Citrus red spider is one of the most serious pests on the current citrus. In Sichuan, it flourishes in April-May every year. In spring, the spider mites often run rampant and the population densities decrease after June. Therefore, Good prevention and treatment work between March and May is an effective measure to protect the tree vigor and ensure high yield. General orchard commonly used stone sulfur mixture, dimethoate prevention and control, and achieved certain results, but the drug can only insecticide, can not kill eggs. In recent years, the application of 20% tetracresulfone prevention and control, ovulation effect is very significant, but the effect on adults, the performance of slow