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烟蚜Myzus persicae,即桃蚜,也是为害蔬菜的蚜虫种类之一,是世界上危害烟草最严重的害虫。其为害寄主范围极广,据国外报导有几百种,国内报导也有170种以上。通过系统调查,基本明确烟蚜在各寄主植物上的消长规律、烟蚜与各生态因子之间的关系,主要生活习性等。一年中烟蚜的消长规律:桃树是烟蚜的主要越冬寄主,在桃树上3月1日开始出现干母;4月1日开始出现干雌;4月底开始出现有翅迁移蚜,迁往春菜田及烟苗床;烟田内7月6日开始出现来自烟苗床及春菜田的有翅蚜,8月间为烟蚜发生盛期,9月间为发生末期;秋季桃树上10月14日开始出现来自秋菜田及烟田的性蚜,10月底开始出现越冬卵,11月底性蚜绝迹。烟蚜在一年中适宜发生的温湿度范围为6.16至28.6℃及40%至86.5%。每头烟蚜成活期平均5—6天;胎生期平均4—6天;胎生蚜量平均16—18头;每头雌性蚜一般产卵10粒左右,多者达15粒。
Myzus persicae, the peach aphid, is also one of the aphid species that infest vegetables and is the most harmful pest in the world that endangers tobacco. Its harm to host a very wide range, according to foreign reports there are hundreds of domestic reports have more than 170 kinds. Through systematic investigation, it is basically clear that the growth and development of Myzus persicae on each host plant, the relationship between the Myzus persicae and each ecological factor, the main habits and so on. The pattern of the growth and decline of the tobacco aphid in the year: the peach tree is the main wintering host of the tobacco aphid, dry stem began to appear on the peach tree on March 1; dry females began to appear on April 1; the winged migrating aphid began to appear at the end of April, Relocated to the spring vegetable fields and tobacco seedbed bed; tobacco fields began to appear on July 6 from the tobacco seedbed and spring field of a winged aphid, August aphid occurrence peak, September is the end of the period; autumn peach October On the 14th, sexual aphids emerged from autumn fields and tobacco fields, and overwintering eggs began to emerge from the end of October. The sexual aphids disappeared by the end of November. The temperature and humidity suitable for the occurrence of aphids in the year range from 6.16 to 28.6 ° C and 40% to 86.5%. Aphids per head average of 5-6 days of life; the average age of 4-6 days of embryos; an aphid amount of 16-18 ante; each female aphids generally spawn about 10, more than 15.