一、控制蚜源 冬季铲除烟田及周围杂草,清除烟田附近树枝上的越冬虫卵;早春和烟草生长季节,全面防除中间寄主上的蚜虫,减少相互传播的途径。 二、打顶去杈 烟蚜有趋嫩性,喜欢在嫩尖、腑杈上寄生危害。适时打顶、去杈有利于烟叶成熟和抑制烟蚜生育。打顶去杈的嫩尖芽叶要随时带出烟田处理,以免烟蚜留在田间继续危害。 三、化学药剂防治 由于烟蚜对大部分化学 First, the control of aphid sources in winter to eliminate tobacco and surrounding weeds, removal of tobacco trees near the branches of the overwintering eggs; early spring and tobacco growing season, the full control of the middle host of aphids to reduce the way of mutual transmission. Second, topping twigs Aphid tendencies tend to tender, like the tip in the tender, organs on the parasitic hazards. Timely topping, to twig conducive to tobacco leaf maturity and inhibition of aphid fertility. Topping twig tender spike leaves at any time to bring out the tobacco field processing, so as to avoid the smoke aphid stay in the field continue to harm. Third, chemical control As aphids on most of the chemical