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

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Storage logistics

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

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Abstract:

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.

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