烟蚜是云南烟草上的主要害虫。被害的烟株,生长停滞,产量降低,品质变劣。烟蚜是黄瓜花叶病和丛矮病等烟草病毒病的传播媒介;它分泌的蜜露,常引起煤烟病。烟蚜的发生、消长与气象因素的关系至为密切。 一、与温度的关系:云南“冬无严寒,夏无酷暑”,烟蚜无明显的越冬滞育现象,终年以孤雌生殖的方式,在烟草、油菜、蔬菜及一些杂草上繁殖交替为害。有“半年油菜,半年烟”的说法。烟草生长旺盛的6、 Aphids are the major pests on Yunnan tobacco. Victims of tobacco, stagnant growth, lower production, poor quality. Myzus persicae is a vector of tobacco virus disease such as cucumber mosaic disease and bushy dwarf disease; it secretes nectar, often causing soot disease. The occurrence, growth and decline of the tobacco aphid and the weather are closely related. First, the relationship with the temperature: Yunnan “winter without cold, no summer heat,” no obvious overwintering Diaphemia diapause diapause throughout the year to parthenogenesis, tobacco, rapeseed, vegetables and some weed reproduction on the alternative . There are “six months rape, six months smoke” argument. Tobacco growing strong 6,