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秦皇岛市位于河北省东北部,属于燕山山脉东段丘陵地区与山前平原地带,地势北高南低,形成北部山区—低山丘陵区—山间盆地区—冲积平原区—沿海区。地形复杂,资源丰富,农作物种植多种多样,种植结构复杂,各种养殖业也非常发达。有各种适于老鼠生存的环境,由于前些年随着种植结构的优化调整和农作物产量和品质的提高,农民大量乱用剧毒鼠药,很多天敌因
Qinhuangdao City, located in the northeast of Hebei Province, belongs to the hilly areas and piedmont plains in the eastern section of the Yanshan Mountains. The terrain is high in the north and the high in the south, forming northern mountainous areas - hilly areas - mountain basin areas - alluvial plain - coastal areas. Terrain complex, rich in resources, a wide range of crop cultivation, planting complex structure, a variety of aquaculture industry is also very developed. There are a variety of environments suitable for the survival of rats. As a few years ago with the optimization of planting structure and the improvement of crop yield and quality, peasants chaotic use of highly toxic rat poison, a lot of natural enemies