吐鲁番地区外来入侵生物烟粉虱发生迁移规律研究

Research of Occurrence and Transferred Laws of Invasive Species Bemisia tabaci in Turpan Area

2006～2007年对吐鲁番地区棉田烟粉虱年种群发生动态的系统调查表明，烟粉虱在温室大棚蔬菜花卉上越冬。当温室大棚掀棚之际，烟粉虱随风迁入大田，首先在甜瓜、金瓜及杂草上危害，棉田5月底始见烟粉虱成虫。7月中旬后逐渐增加。8月下旬进入高峰期。棉田烟粉虱成虫数量达单叶219头，9月下旬后逐渐减少并开始迁入温室。田间持续到11月中旬。

The Bemisia tabaci population dynamics system survey in the cotton field of Turpan from 2006 to 2007 showed that Bemisia tabaci overwintered on vegetables flowers in the greenhouse, when the plastic film in the greenhouse was uncovered, Bemisia tabaci moved to field with the wind, it did harm to melon, cowpea and weeds first, at the end of May the adult of Bemisia tabaci was firstly found in cotton and it gradually was increased in the middle ten - day period of July and got the peak period in the last ten - day period of August. The number of adult Bemisia tabaci in cotton can reach 219 per leaf. After the last ten - day period of September, it was reduced in field and started to move into the greenhouse gradually. The harm in field continued until the middle ten - day perood of November.