安徽省涉粮场所近期储粮虫螨调查

Recent Investigation of Stored-Grain Insects and Mites in Grain-related Sites in Anhui Province

为了解安徽省储粮虫螨发生种类及分布特征,并制订该地区害虫防治策略提供依据,分别于2016和2017年对安徽省内59个涉粮相关场所进行储粮虫螨现场调查。在安徽省共采集到储粮昆虫7目28科51种,其中鞘翅目种类最多,共40种。按发生频率高低,主要害虫发生种类有:米象Sitophilus oryzae(Linnaeus),锈赤扁谷盗Cryptolestes ferrugineus(Stephens),赤拟谷盗Tribolium castaneum(Herbst),谷蠹Rhyzopertha dominica(Fabricius),发生频率分别为100%、76.3%、66.1%、64.4%。储粮昆虫主要发生场所为加工厂,并且种类丰富,约占发现总种类的88%,在粮库、加工厂和农户三种类型的调查点中,储粮害虫主要发生的种类基本一致。省内不同地区主要发生种类一致,但发生频率差异较为明显。采集到螨类共8种,共鉴定出5种。此外,安徽省储粮害虫天敌种类丰富,主要有寄生蜂、拟蝎及捕食螨。

In order to find out the types and distribution characteristics of stored-grain insect mites and provide basis for pest control in Anhui province,59 grain-related places were investigated in 2016 and 2017.The survey results showed that a total of 51 species of 28 families and 7 orders of stored grain insects were founded in these areas,of which the amount of Coleoptera species was the largest,with a total of 40 species.According to the frequency,the main pests were Sitophilus oryzae(Linnaeus),Cryptolestes ferrugineus(Stephens),Tribolium castaneum(Herbst),Rhyzopertha dominica(Fabricius),with occurrence frequency of 100%,76.3%,66.1%,64.4%respectively.The main occurrence of stored insects was in processing plants,and the species are abundant,accounting for 88%of the total species found,Among the three types of survey points including grain storage,processing plants and farmers,the main types of stored-grain insects were the same.The main types of occurrence were the same in different regions of the province,but the frequency of occurrence differed significantly.A total of 8 species of mites were collected,and a total of 5 species were identified.In addition,Anhui province had a rich variety of natural enemies of stored grain pests,mainly were parasitic wasps,scorpions and predatory mites.