四川烟区烟蚜天敌资源与分布调查

Natural enemy species of Myzus persicae and their distribution in Sichuan tobacco planting areas

为明确四川烟区烟蚜天敌资源状况及各烟区的优势天敌昆虫种类,于2014—2015年对四川产烟区烟蚜天敌资源进行了系统调查和采集。调查和鉴定结果发现,四川产烟区天敌资源有6目10科29种,优势种类为烟蚜茧蜂、七星瓢虫、异色瓢虫、大草蛉和黑带食蚜蝇。烟蚜茧蜂是各烟区烟蚜的共同优势天敌昆虫,凉山州、攀枝花、达州和广元烟区的烟蚜优势天敌还有七星瓢虫、异色瓢虫、大草蛉和黑带食蚜蝇,泸州、宜宾和德阳烟区的烟蚜优势天敌还有异色瓢虫。

In order to clarify the resource and dominant categories of natural enemies of aphid in different tobacco planting areas of Sichuan, the natural enemies of aphid were investigated, collected and identified from 2014 to 2015 crop years. The results showed that there were 29 species of natural enemies for Myzus persicae （Sulzer） in total, included 10 families of 6 orders. The dominant species were Aphidius gifuensis Ashmaed, CoccineUa septempunctata Linnaeus, Harmonia axyridis （Pallas）, Chrysopct paUens （Rambur） and Episyrphus balteatus （De Geer）. Aphidius gifuensis Ashmaed was the dominant enemy in all areas. In addition, Coccinella septempunctata Linnaeus, Harmonia axyridis （Pallas）, Chrysopa pallens （Rambur） and Episyrphus balteatus （De Geer） were the dominant enemies in Liangshan, Panzhihua, Dazhou and Guangyuan, as did Harmonia axyridis （Pallas） in Luzhou, Yibin and Deyang.