稻飞虱是我省水稻上的主要害虫之一,近十多年来,为害日趋严重,大发生频率明显增加。据统计,全省稻飞虱大发生的年份有1973、1976、1977、1978。发生地点尤以滇西南,滇南稻区发生面积大,损失重。稻飞虱的发生及为害,引起省内外普遍关注。为此,对其发生规律及防治途径,特别是越冬虫源(关系到预测预报的重要科学理论依据)问题,开展了有关的研究。为摸清稻飞虱在省内的越冬状况,从 Planthopper is one of the main pests on rice in our province. In the past ten years, the damage has become increasingly serious, and the frequency of occurrence of major diseases has increased significantly. According to statistics, there were 1973, 1976, 1977, 1978 in the province where the planthopper occurred. The occurrence occurred especially in southwestern Yunnan and southern Yunnan rice areas with large area and heavy loss. The occurrence and damage of planthoppers, causing widespread concern inside and outside the province. To this end, the occurrence of the law and control ways, especially overwintering source (related to the prediction of the important scientific basis) to carry out the relevant research. In order to find out the overwintering situation of planthoppers in the province, from