陕西烟田地下害虫种类初步调查

为了更好地了解陕西省烟田地下害虫的种类组成及其发生动态，2010—2011年进行了初步调查，采取挖土调查和灯光诱捕相结合的方法，分别记述了陕西省烟田地下害虫35种，分属于3目9科。根据各种地下害虫的发生量和危害程度，提出了陕西省烟田地下害虫分类方法，将本研究记述的地下害虫分为主要害虫、局部偶发重要害虫、中度害虫和轻度害虫4类，其中主要害虫3种：华北大黑鳃金龟、暗黑鳃金龟、铜绿丽金龟；局部偶发重要害虫2种：银川油葫芦、小地老虎；中度害虫6种；轻度害虫24种。

Preliminary Investigation on Soil Insects and Pests in Tobacco Fields in Shaanxi Province

In order to better understand species composition and population dynamics of soil insects and pests in Shaanxi province, a series of field investigations was carried out by digging and lighting trap method in Shaanxi province from 2010 to 2011. Thirty five species, belonging to 9 families within three orders, of soil insects and pests were found in tobacco fields of Shaanxi province. Based on their population sizes, the soil insects and pests were divided into four categories. Holotrichia oblita (Faldermann), Holotrichia parallela Motschulsky, and Anomala corpulenta Motschulsky were the major insect pests. Teleogryllus infernalis (Saussure) and Agrotis ypsilon Rottemberg were the local sporadic insects and pests. Six species were common insects and pests, and 24 were minor insects and pests.