作　　者： ;

机构地区： 扬州大学生物科学与技术学院

出　　处： 《中国植保导刊》 2017年第1期41-45,共5页

摘　　要： 烟粉虱是江苏棉花、蔬菜、花卉等作物上的重要害虫。在江苏地区,烟粉虱不能在露地越冬,但可以在保护地越冬;春末夏初,随着温度的升高逐渐向露地作物上扩散为害。烟粉虱从保护地向露地第一次扩散在500 m范围内,食料条件恶化时再次向周边扩散。在食料丰富的田间一般在寄主植物冠层上5~10 cm飞行。越冬虫源丰富、外地虫源引入、作物布局有利、抗逆性增强、预警机制不健全和防治方法不当是烟粉虱暴发的主要原因。提出了烟粉虱"区域控制、全程控制、生态控制"的防控原则。 Bemisia tabaci is an important pest in cotton, vegetables, flowers, etc, in Jiangsu province, which could only overwinter in protected areas while would not survive in open fields. During late spring to early summer B. tabaci would spread gradually from protected areas to open field, firstly within a range of 500 m, and then to surrounding areas with temperature rising and food getting insufficient. B. tabaci could fly within 5-10 cm high over host plants in field. Main reasons for B. tabaci outbreak might be abundant pest sources, introduction of outside sources, advantageous crop distribution, strengthened resistance, and unsound warning mechanism and inappropriate prevention method. Principles of B. tabaci prevention including regional control, whole-process control and ecological control were put forward in this paper.

关 键 词： 烟粉虱 种群 发生规律 生态防控

领　　域： [生物学] [农业科学] [农业科学]