内蒙古草地害虫的发生与防治

NOTES ON THE OCCURENCE AND CONTROL OF GRASSLAND INSECT PESTS IN NEI MONGOL AUTONOMOUS REGION

本文分析和论述了内蒙古各种类型草地害虫的种类组成、分布、发生数量及发生特点。就当前内蒙古草地害虫发生原因及其防治中存在的问题进行了探讨,并对今后内蒙古草地害虫的管理提出了具体建议。

This paper deals with the general information and situation on the insect pests of grassland in Nei Mongol , on the basis of the actual pest occurences in recent years. 106 species of the grassland pests are divided into four principal groups: A. Pests of natural grassland ( including 1. pests of steppe zone, 2. pests of desert zone) ; B. Pests of artificial grassland (including 1. pests of leguminous plant, 2. pests of graminous plant ); C. Pests of forage crops; and D. Soil pests. The distribution, abundance, and occurence degree of the pests are demonstrated separately. The reasons for the outbreaks of important pests and the problems in pest management are discussed, which involved the grassland degeneration, changing land—use of grassland, unusual climate and the unique pesticide control in relation to the pest outbreak. In addition, the hereafter strategies to pest management of grassland and the emphasis of scientific research are suggested specially.