乌海市温室白粉虱种群的时空动态变化及绿色防控措施

Whitefly population spatiotenporal dynamic changes and green prevention and control measures of greenhouse in Wuhai city

通过系统调查,乌海地区温室白粉虱的种群数量随时间的动态变化,总体上呈上升趋势;温室白粉虱种群数量的空间分布具体是水平方向为北部>中部>南部,且随着外界温度升高,白粉虱种群有向温室南部区域迁移的趋势;温室白粉虱种群的垂直分布为上部>中部>下部,且上部和中部叶片成虫总数占总虫量的比例为先减小后增大。采用生物防治和物理防治等绿色防控措施可有效地抑制白粉虱的种群数量。

With systemic investigation the temporal dynamic variation of population quantity of Trialeurodes vaporariorum in greenhouse in Wuhai area, it presented the trend of increased in all. The spatial distribution of Trialeurodes vaporariorum in greenhouse showed that the horizontal distribution of the order from high to low at north, middle, south, and with the increase of temperature, the Trialeurodes vaporariorum had the trend of migrating to the south of greenhouse; the vertical distribution of the sequence from high to low was upper, middle, lower, and the proportion of the total amount of the adult worm in the upper and middle leaves increased after the first decrease. Biological prevention and physical prevention can effectively restrain the population quantity of Trialeurodes vaporariorum in greenhouse.