英文文献：An Economic Analysis Of Corn Rootworm Management: Areawide Pest Management Versus Soil Insecticides- A Net Present Value Approach-玉米根虫管理的经济分析:害虫管理与土壤杀虫剂-净现值方法
英文文献作者：Stair, Christina Welch,Quan, Peter,Martin, Marshall A.
英文文献摘要：
In 1996, the USDA initiated research in three Midwestern locations to control corn rootworms with a scouting and aerial spraying program. The preliminary economic results suggest that without a modest subsidy, an areawide pest management approach is not as economical as the use of soil insecticides

1996年，美国农业部在中西部的三个地方发起了一项研究，通过侦察和空中喷洒来控制玉米根虫。初步的经济结果表明，如果没有适度的补贴，害虫防治方法不如使用土壤杀虫剂经济