2009年我国小菜蛾迁飞路径典型案例分析

发布时间：2018-01-09 23:08

本文关键词：2009年我国小菜蛾迁飞路径典型案例分析　出处：《环境昆虫学报》2016年05期 　论文类型：期刊论文

【摘要】：小菜蛾Plutella xylostella Linnaeus是一种世界性的十字花科蔬菜重要害虫,具有远距离迁飞的特性,明确小菜蛾在我国的种群发生动态及迁飞路径对其早期预警具有重要意义。本文调查了2009年5月我国南京、故城、安阳、大连、公主岭、沈阳6个地区小菜蛾成虫种群的发生动态,并首次利用HYSPLIT平台对不同地区小菜蛾种群的迁飞峰次进行了轨迹分析。结果表明,2009年5月我国6个地区的小菜蛾成虫种群存在显著地"突增"或"突减"现象,符合迁飞昆虫在迁飞期的种群动态的典型特征;5月14日南京地区起飞的小菜蛾种群可迁飞至大连,5月19日故城地区起飞的小菜蛾种群可迁飞至公主岭,5月20日安阳地区起飞的小菜蛾种群可迁飞至沈阳;首次明确了小菜蛾轨迹分析的设定参数,800-1200 m为小菜蛾适宜迁飞的飞行高度,飞行持续时间一般为2-3 d。
[Abstract]:Plutella xylostella Plutella xylostella Linnaeus is an important pest of cruciferous vegetables in the world, which has the characteristics of long-distance migration. It is important to determine the population dynamics and migration path of Plutella xylostella in China for early warning. In May 2009, we investigated Nanjing, Old City, Anyang, Dalian and Gongzhuling in China. The population dynamics of diamondback moth (Plutella xylostella) in six areas of Shenyang was studied. The migration peak times of Plutella xylostella population in different areas were analyzed by using HYSPLIT platform for the first time. In May 2009, the adult population of Plutella xylostella in 6 regions of China had the phenomenon of "sudden increase" or "sudden decrease", which was in line with the typical characteristics of population dynamics of migratory insects during the migration period. In May 14th, the population of Plutella xylostella could migrate to Dalian, and in May 19th, the population of Plutella xylostella could migrate to Gongzhuling. In May 20th, the Plutella xylostella population which took off in Anyang area could migrate to Shenyang. For the first time, the optimum flight altitude of Plutella xylostella was 800-1200 m, and the flight duration was generally 2-3 days.
【作者单位】：中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室;山西省农业科学院植物保护研究所农业有害生物综合治理山西省重点实验室;农作物重大病虫草害防控湖北省重点实验室湖北省农业科学院植保土肥研究所;
【基金】：国家公益性行业专项(201103021) 国家自然科学基金项目(31471764)
【分类号】：S433.4
【正文快照】： 小菜蛾Plutella xylostella,属鳞翅目,菜蛾科,是一种世界性的十字花科蔬菜重要害虫。小菜蛾在我国各地均有分布,其中以南方各省广大蔬菜产区和西部油菜区发生较为严重(冯夏等,2011)。随着十字花科植物种植区域北移,北方地区小菜蛾为害呈逐年上升趋势,小菜蛾已成为我国南北方蔬

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