甜菜夜蛾性誘法和燈誘法誘捕效果比較分析

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中圖分類號S433.4 文獻標識碼A 文章編號 1007-7731（2025）13-0070-03

DOI號 10.16377/j.cnki.issn1007-7731.2025.13.016

Comparative analysis of the trapping effects of Sex pheromone trapping and light trapping methods for Spodoptera exigua

GUI Suyi

（Susong County Agricultural Comprehensive Technology Extension Service Center，Susong 2465o0， China）

AbstractTo compare the moth trapping eficiency of sexual pheromone trapping and light trapping for Spodoptera exigua，explore the application strategies of the two methods，and establish a more precise pest monitoring and forecasting technical system，this study conducted comparative experiments on the trapping eficiency of the two methods incotton fieldsof Susong County，Anhui Province during 2O21（light occurrence year）and2O23 （severe occurrence year）.The results showedthat the growthanddecline dynamics of trapped moth counts bythe two methods were highly consistent with the actual field occurrence;the amount of trapped moths was mainly concentrated from August to October （accounting for 3/4 of theannual total），withthe highest moth countoccurred in September;the monthlymoth peak daysof the two trapping methods diffred by1-2days，andthe mothcount onpeak daysusing sexual pheromone trapping was significantly higher than that using light trapping，with clearer moth peaks across generations and more prominent early warning capabilities; the occurrence of S .exigua was significantly influenced by external environmental factors，closelyrelated toabnormal climates such as high temperature and drought.In lightocurrence years，light trapping can serveasaconventional monitoring method，but in severe or heavy occurrence years，the application of sexual pheromone trapping for monitoring should be strengthened. Due to its strong target specificity， sexual pheromone trapping demonstrates more prominentadvantages inpest monitoring during severe occurrence years. It can serve as an important auxiliary means for chemical control，guiding pesticide application through precise monitoring， reducing pesticide usage， and promoting green ecological pest management.

KeywordsSpodoptera exigua; sex pheromone trapping method; light trapping method; pest situation monitoring

甜菜夜蛾（Spodoptera exigua Hubner）屬鱗翅目夜蛾科。（剩余3419字）