采用回归积分方法研究了福建省福清地区晚稻生长期间不同阶段气温变化对褐飞虱种群消长的影响。结果表明 ,气温对褐飞虱种群消长的影响效应分为五个阶段 :第一阶段为晚稻移栽期至分蘖早期 ,气温影响为负效应 ,高温对褐飞虱种群增殖有明显的抑制作用 ;第二阶段为分蘖期至孕穗期前 ,气温影响为正效应 ,相对高的气温有利于褐飞虱种群的发展 ;第三阶段孕穗期和第四阶段抽穗、扬花、灌浆期 ,此时食料条件很适宜褐飞虱种群的生长 ,而气温的影响效应相对较低 ;第五阶段为负效应。第一阶段和第二阶段为气温影响褐飞虱种群的关键时期 ,两个阶段处于褐飞虱定植为害的早期 ,表明当年晚稻褐飞虱种群暴发与否与早期种群累计阶段温度条件的适宜程度有密切关系 Regression integral method was used to study the effects of temperature changes on the population dynamics of the brown planthopper (BPN) population in different stages of late rice growth in Fuqing, Fujian Province. The results showed that the effects of temperature on the population dynamics of BPH were divided into five stages: the first stage was the transplanting of late rice to the early tillering stage, the temperature had a negative effect, and the high temperature had a significant inhibitory effect on the BPH population proliferation. The second stage was The tillering stage to the booting stage had a positive effect on temperature. Relatively high temperature was favorable for the development of BPH population. The third stage was at the booting stage and the fourth stage was heading, flowering and filling stage, and the feeding conditions were suitable for the growth of BPH population , While the impact of temperature is relatively low; the fifth stage is a negative effect. The first stage and the second stage are the critical period of temperature impact on BPH population. The two stages are in the early stage of BPH colonization, indicating that the outbreak of BPH population late in the year was closely related to the suitability of temperature conditions during early stage of population accumulation