钢板仓储粮害虫陷阱诱捕技术研究

PROBE TRAPS TO MONITER STORED-GRAIN INSECTS IN STEEL SILO

采用GJ89型粮虫陷阱检测器对钢板仓害虫物种分布组成及主要害虫书虱和螨类在不同储藏期各部位的分布进行了调查研究。结果表明 :3～ 4月仓库昆虫物种组成简单 ,为书虱和长角谷盗两种 ,分别占捕获总虫量的 99.5%及 0 .5% ;8月份仓库昆虫 7种 ,主要种类是书虱和螨类 ,分别占捕获总量的 61 .9%和 38% ,次要害虫种类有赤拟谷盗、长角谷盗、玉米象、谷蠹及花斑皮蠹。不同储藏期、不同粮层、不同方向害虫分布也存在差异。调查还表明钢板仓书虱和螨类有相似的生态环境。

GJ89 type probe traps were used to monitor stored grain insects species,distribution in different storage periods in the steel silo.The results showed that psocits and Cryptolestes pusoillus were the dominant species from May to April,accounting for 99.5% and 0.5% respectively.Seven species were captured in August.The dominant species were psocits and mites,accounting for 61.98% and 38% respectively.The other species were Tribolium castaneum,Cryptolestes pusillus,Sitophilus zeamais,Rhyzopertha dominica and Trogoderma persicum. The distribution of the insects in different grain layers,directions and storage periods was different.The results also showed that psocits and mites were similar ecological environment in the steel silo.