To determine the effects of temperature on the development and reproduction of top borer Scirpophaga excerptalis Walker (Lepidoptera: Pyralidae), the durations of different developmental stages and reproductive capacity of S. excerptalis were measured at 20, 23, 26, 29 and 32℃. The results showed that the average durations of various developmental stages of S. excerptalis shortened with increasing temperatures from 20 to 32℃. The durations to complete one life cycle were 113.17 days at 20℃, and 39.50 days at 32℃. The developmental rate of each stage and generation was positively correlated with the temperature, which was consistent with the Logistic regression model. The temperature thresholds for egg, larval, pupal and preoviposition stages and the total cycle were 13.73, 14.73, 13.91, 13.66 and 14.10℃, respectively. The effective accumulative temperature was 112.62, 370.01, 188.17, 23.82 and 718.07 degree-days (DD), respectively. The adult longevity shortened with increasing temperatures, and the highest number of eggs laid per female was 204.74 eggs at 29℃. The survival rates of eggs, larvae and the whole generation were the highest at 26℃, which were 87.25%, 56.67% and 37.21%, respectively while the highest survival rate of the pupa was 76.69% at 29℃. There was no significant difference for the total cycle at 23-29℃. The results indicated that temperature was the key factor affecting the development and reproduction of S. excerptalis, and the optimum temperature for development and reproduction ranged from 23 to 29℃.

为了测定温度对开发和顶部的再现螟的影响三化excerptalis沃克（鳞翅目：螟蛾科），不同发育阶段和生殖能力的持续时间小号。在 20, 23, 26, 29 和 32 ℃下测量摘录。结果表明，S. excerptalis不同发育阶段的平均历时随温度从 20℃升高到 32℃而缩短。20℃下完成一个生命周期的时间为113.17天，32℃下为39.50天。各阶段、世代的发育速度与温度呈正相关，与Logistic回归模型一致。卵、幼虫、蛹和产卵前阶段和总周期的温度阈值分别为13.73、14.73、13.91、13.66和14.10℃。有效积温分别为112.62、370.01、188.17、23.82和718.07度日（DD）。成虫寿命随温度升高而缩短，29℃时每只雌虫产卵最高可达204.74枚。26℃时卵、幼虫和全代成活率最高，分别为87.25%、56.67%和37.21%，29℃时蛹的最高成活率为76.69%。23-29℃总循环无显着差异。结果表明，温度是影响黄花菜发育繁殖的关键因素。S. excerptalis，发育繁殖的最适温度为23～29℃。