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开封地区地处中原,位于黄河下游南岸,西部为丘陵山区,东部为平原。雨量适中,气候温和。各种作物害虫种类较多,与此相适应的害虫天敌资源也十分丰富。为了澄清我区天敌资源情况,以更好地发挥当地天敌的作用,进一步搞好农作物害虫的综合防治,我们从1979年起,在中牟等县的17个公社50个大队进行了农作物害虫天敌资源调查研究。现将初步结果报告如下。
Kaifeng region is located in the Central Plains, located in the lower reaches of the Yellow River south bank, the western hills and mountains, the eastern plains. Moderate rainfall, mild climate. There are many kinds of crop pests, and pest insect resources that are suitable for this are also very rich. In order to clarify the resources of natural enemies in our region and to give full play to the role of natural enemies in our region to further improve the comprehensive prevention and control of crop pests, we started from 50 communities of 17 communes in Zhongmou County since 1979 to carry out crop pest natural enemies resources Research. The preliminary results are reported below.