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辽宁省半农半牧区草地鼠虫害综合防治技术陈秀霞（辽宁省草原工作站，沈阳１１５５１５）辽宁省西、北部半农半牧区有可利用天然草地１０９万ｈｍ２，人工草地１３．３３万ｈｍ２。区内年平均草地鼠虫害发生面积２０万ｈｍ２，损失牧草２～３亿ｋｇ，相当于６０万只羊（羊...
Comprehensive Prevention and Control Techniques of Stem Pests and Insects in Semi-agricultural and Semi-pastoral Areas of Liaoning Province Chen Xiuxia (Liaoning Provincial Grassland Work Station, Shenyang 115515) There are 1.09 million hm2 of natural grassland and 133,300 hm2 of artificial grassland available in the semi-agricultural and semi-pastoral areas in the west and north of Liaoning Province. The annual average grassland pests and diseases area of 200000 hm2, loss of grass 2-300000000 kg, equivalent to 600000 sheep (sheep ...