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试验表明 ,在 7月中旬前后应用 4 0 %氧化乐果树干喷雾可杀死大量桑天牛、光肩星天牛初孵幼虫 ,大大降低有虫株率 ;幼虫侵入木质部危害后 ,可用 4 0 %氧化乐果原液、16%虫线清原液、生态宝原液、毒签进行虫道施药防治 ,杀虫效果也十分明显 ,有虫株减退率都可达 80 %以上 ;在每年入冬前对树木涂白是一种简便实用的预防方法 ,可有效阻止天牛越冬、产卵 ,使树木免于侵染 ,并可兼防冻害、日灼等
Experiments show that the application of 40% omethoate trunk spray around mid-July can kill a large number of mulberry young, larvae of Anoplophora glabripennis, greatly reducing the rate of entomopathogenic fungi. After the larvae invade the xylem, 40% omethoate The original liquid, 16% worm liquid, the original solution of ecological treasure liquid, insecticide insecticide effect, insecticidal effect is also very obvious, the worm reduction rate can reach more than 80%; Is a simple and practical method of prevention, which can effectively stop the weather overwintering, spawning, the trees from infection, and can prevent frost damage, sunburn, etc.