【目的】为明确北京地区不同栽培管理模式下韭菜田全年韭菜迟眼蕈蚊Bradysia odoriphaga种群动态的发生规律及其越夏越冬场所。【方法】分别在2014—2015年通过黄色板对露地和温室韭菜田块的韭菜迟眼蕈蚊成虫进行了监测,并通过挖根和网捕的方式调查韭菜迟眼蕈蚊的越夏越冬场所及虫态。【结果】北京地区,露地韭菜田块韭菜迟眼蕈蚊每年发生3~4代,温室内可全年发生,主要为害高峰期在春秋两季;韭菜迟眼蕈蚊幼虫主要分布在0~5 cm的土壤深处;夏季韭菜迟眼蕈蚊虫口基数偏低,但主要在本地韭菜田块越夏;冬季韭菜迟眼蕈蚊主要以4龄老熟幼虫在鳞茎内或鳞茎附近的土壤中越冬。【结论】本研究阐明了北京地区不同栽培管理模式下,韭菜迟眼蕈蚊周年发生的种群动态规律及越夏越冬生物学特性,为韭菜迟眼蕈蚊的预测测报和综合防治提供理论参考依据。 【Objective】 The objective of this study was to determine the population dynamics of Bradysia odoriphaga and the place of over-wintering in summer in Chinese leek (Allium leucocephala L.) field under different cultivation and management modes in Beijing. 【Method】 The larvae of Leek larvae in the open field and greenhouse leek fields were monitored by the yellow plate from 2014 to 2015 respectively. The overwintering sites of lettuce and larvae were studied by means of digging and netting And insect state. 【Result】 In Beijing, lettuce and lettuce were exposed for 3 to 4 generations per year in the field of leeks in the open field, and could occur all year round in the greenhouse. The main damage peak was in spring and autumn. The lettuce larvae were mainly distributed in 0 ~ 5 cm in summer. The basal population of larvae in summer was low but mainly in the summer of Chinese leek fields. The larvae of winter leek larvae mainly in the soil of bulbs or bulbs . 【Conclusion】 This study clarifies the population dynamics and the overwintering biological characteristics of B. lelcae in different cultivation and management modes in Beijing, and provides a theoretical reference for the prediction and comprehensive monitoring of F. brachycarpa in Leek .