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叶螨是苹果生产中常发性重要害虫,体形较小,高温干旱时繁殖快,严重影响苹果叶片的正常生理功能,削弱树势。苹果园中主要有3种叶螨,即山楂叶螨、二斑叶螨和苹果果苔螨。现将几种常见杀螨剂的防控对象、应用时间、药剂效果等介绍如下。一、噻螨酮(尼索朗)1.作用特点对植物表皮有较好的穿透性,但无内吸传导作用。对卵、若螨活性高,对成虫活性低,对锈螨、瘿螨效果不好。可与波尔多液、石硫合剂等
Spider mite is a perennial important pest in apple production. Its body shape is small and reproduce quickly under high temperature and drought. It seriously affects the normal physiological functions of apple leaves and weakens the tree vigor. Apple orchard in the main three kinds of spider mites, namely, hawthorn spider mite, two-spotted spider mite and apple fruit moss. Now several common acaricide prevention and control object, the application time, the effects of agents are described below. A, hexytizone (Nisuo Lang) 1. The role of the characteristics of the plant epidermis have better penetration, but no suction conduction. Egg, if the mite activity is high, low activity of adults, rust mites, scabies mite effect is not good. With Bordeaux mixture, stone sulfur mixture