吉林省花生苗期病虫害发生概况初报

The Report of General Occurring Situation of Peanut Diseases and Insect Pests at Seedling Stage in Jilin Province

[目的]了解和初步掌握吉林省花生苗期病虫害发生概况和危害程度。[方法]在花生主产区,采用随机取样、分级计数和实地估测法对苗期病虫害发生概况进行调查。[结果]累计调查1 200多公顷,约占我省花生种植面积的1.3%。花生苗期主要病害为根腐病和立枯病,危害率占苗期病害总体的75%以上;主要虫害为蛴螬和花生蚜,危害率占苗期虫害总体的80%左右。[结论]吉林省花生苗期根腐病、立枯病、蛴螬、花生蚜发生较为普遍、危害重。其防控技术有待于完善和普及。

Objectives of the study was to understanding and preliminary master the general occurring situation and damage degree of peanut diseases and insect pests at seedling stage in Jilin Province. The method of random sampling, grade counting and on-the-spot estimating was used to make an investigation about diseases and insect pests at main peanut cultivated areas. Cumulative survey was taken to more than 1 200 hectares which account for about 1.3% of total planting area. It was discovered that two main diseases at seedling stage were root rot and seedling blight, which damage rate account for more than 75% of the whole seedling diseases. Two main insect pests at seedling stage were grub and peanut aphid, which damage degree account for about 80% of the whole seedling insect pests. The results showed that root rot, seedling blight, grub and peanut aphid occurred at seedling stage were spread widely and seriously. The prevention and control technology should be improved and popularized.