济源市位于河南省西北部,总人口68万,现有耕地3.4万hm2,常年农作物种植面积5.8万hm2,种植作物主要有小麦、玉米、大豆、花生、蔬菜、果树、烟草等,农业生产较为发达。本市地理生态环境多样,土地肥沃,农业生产条件优越,分布有多种昆虫、微生物,是黏虫等南北迁飞和数种流行性重大病虫越冬、越夏基地,常年发生各种农作物病虫草鼠害33 Jiyuan City is located in the northwestern part of Henan Province, with a total population of 680,000. The existing cultivated land is 34,000 hm2. The annual planting area of ​​crops is 58,000 hm2. The crops mainly include wheat, corn, soybean, peanut, vegetables, fruit trees, tobacco and so on. developed. The geographical environment of the city is diverse, fertile land, agricultural production conditions are superior, distributed a variety of insects, microorganisms, is migratory insects and other north-south migratory and a number of epidemic major pests and wintering, summer base, perennial occurrence of various crop diseases Cordyceps rodents 33