CC-TRAP在棉田烟粉虱移动态监测上的运用

通过诱集陷阱的诱集监测,肯定了CC-TRAP诱捕器对烟粉虱成虫的诱集效果,该诱捕器最大的优点是其仅对烟粉虱有诱集作用而不受其它害虫的干扰。田间观察与数据表明,温室是大田烟粉虱主要的冬季庇护所和春季的虫源中心。由于烟粉虱的主动迁移能力很弱,属于典型的借助风力被动扩散的昆虫,风向和风力是其田间传播扩散的关键影响因子,距离虫源中心越远,发生时间越晚,成虫数量越低。SPSS相关分析表明烟粉虱的成虫数量与风向、风力呈显著正相关。

Application of CC-TRAP to Monitoring the Distribution Dynamics of Bemisia tabaci(Gernnadius) is Cotton Field

The study confirmed effects of CC-TRAP in monitoring distribution dynamics of B.tabaci(Gennadius) adults.It not only shows its effects in attraction of B.tabaci(Gennadius),but also shows none disturbance by other insects in the observation of adult quantity during the period of experiment.The investigation indicated that the greenhouses are the main locations in harboring B.tabaci(Gennadius) to live through winter and theyare also the main resources of whiteflies in next year.Being poorly capable of distributing by Bemisia tabaci(Gennadius) themselves,they are typically distributed by wind power.The wind direction and wind power are key factors in affecting the distribution of B.tabaci(Gennadius).The farther they are apart from the resources of Bemisia tabaci(Gennadius),the later the occurrence of the distribution is.The analysis of SPSS showed that the relationship between the amount of adults of B.tabaci(Gennadius) and the wind parameter is significant positive correlation.