黑龙江地区烟粉虱和温室白粉虱发生动态
Occurrence and development for Bemisia tabaci and Trialeurodes vaporariorum in Heilongjiang Province
付 雪1** 叶乐夫2 王贵强1 戈 峰2
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DOI：
作者单位：1.黑龙江大学农业资源与环境学院 哈尔滨 150086；2.中国科学院动物研究所 农业虫害鼠害综合治理研究国家重点实验室 北京 100101
中文关键词：烟粉虱，温室白粉虱，越冬，转移，种群动态
英文关键词：Bemisia tabaci，Trialeurodes vaporariorus，overwinter, transmission, pulation dynamics
中文摘要： 本文报道了我国高纬度地区（黑龙江哈尔滨）烟粉虱和温室白粉虱的全年发生过程。连续2年调查结果显示，粉虱在哈尔滨地区只能在温室中越冬，于来年5月大棚的第一茬蔬菜上首先发生，至7月第二茬大棚作物时才在大田有少量（低于300头 / 百叶）出现，在7月末的部分保护地作物上，粉虱种群密度可达到6 000头/百叶；而大棚蔬菜中则以番茄和黄瓜上发生最为严重，少量大棚因此绝收；入秋后又从大田消失。结果显示，我国高纬度省份的保护地（温室和大棚）粉虱为害仍然严重，迫切需要从切断源头和迁移扩散路线进行有效防治。
英文摘要： The occurrence and development of Bemisia tabaci (Gennadius) and Trialeurodes vaporariorus (Westwood) was investigated in a high latitude area (Harbin, Heilongjiang Province) from 2008 to 2010. Under local climate conditions, whiteflies can only over-winter on greenhouse crops. They appeared on first-cut crops in greenhouses in May, then in fields when second-cut crops are planted in greenhouses in July and disappeared after autumn. Large whitefly densities were observed in several vegetable greenhouse fields at the end of July. Tomato and cucumber crops were most seriously affected by a virus carried by whiteflies. This caused almost total crop failure in some greenhouses. Our investigation suggested that whiteflies are an important pest in greenhouses in high latitude areas. Prevention and integrated management of whiteflies should include reducing host plants and local transmission pathways.