Research on risk assessment and zoning of corn borer disaster in Shandong Province

doi:10.14088/j.cnki.issn0439-8114.2023.01.013

Abstract

Abstract: In view of the damage assessment and prevention needs of agricultural pests and diseases in Shandong Province, the risk assessment and zoning of corn borer disasters in Shandong Province in recent years were conducted. The technical specification with the agricultural industry standard of the People's Republic of China Technical Specitication for Corn Borer Detection and Reporting （NY/T 1611—2008） and the local standard for grading the occurrence degree of corn borer from Shandong Plant Protection Station were combined. Based on the statistics and data extraction of the occurrence of corn borer in Shandong Province in the past 13 years, the classification criteria of the occurrence degree of corn borer were put forward, which took the rate of damaged plants as the main dividing factor and the number of pests on 100 plants as the auxiliary factor. The classification and frequency statistics of the occurrence degree of corn borer were carried out in 16 prefectural cities in Shandong Province; based on the index system, which took the occurrence frequency of corn borer as the disaster factor, the maize sown area and meteorological conditions as the disaster environment factor, and the maize yield as the carrier factor, the risk regionalization of single index factor was constructed. The comprehensive risk index was calculated through the normalization process, and the comprehensive risk regionalization of corn borer in Shandong Province was generated according to the comprehensive risk index. The results showed that the risk of corn borer in Shandong Province mainly occurred in the central and western parts of the province, among which, Heze City was a high-risk area, and Dezhou City, Weifang City, Binzhou City and Liaocheng City were higher-risk areas.

Key words: corn borer（Pyrausta nubilalis）, risk assessment, zonation, GIS, Shandong Province

CLC Number:

ZHANG Xiao-dong, ZUO Ya-nan, JI Min. Research on risk assessment and zoning of corn borer disaster in Shandong Province[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(1): 84-88.

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