【目的】 磷化氢是防治储粮害虫的主要熏蒸药剂，其杀虫效果受多种环境因子的影响，其中温度对磷化氢熏蒸杀虫效果有较大的影响。本研究旨在明确温度对磷化氢熏蒸杀虫效果的影响，为指导开展储粮害虫防治工作提供理论依据。【方法】 以赤拟谷盗Tribolium castaneum和锈赤扁谷盗Cryptolestes ferrugineus两种主要储粮害虫为研究对象，分别测定在温度20、25和30 ℃时，赤拟谷盗和锈赤扁谷盗的卵、幼虫、蛹、成虫在400 mL/m³磷化氢熏蒸12、24、36和48 h的死亡率。【结果】 25和30 ℃条件下，磷化氢熏蒸赤拟谷盗幼虫、蛹和成虫的死亡率及锈赤扁谷盗幼虫和成虫死亡率显著高于20 ℃条件下的死亡率（P<0.05），25 ℃较20 ℃下，磷化氢致死锈赤扁谷盗各虫态的时间均显著缩短（P<0.05）。30 ℃下，磷化氢熏蒸赤拟谷盗和锈赤扁谷盗各虫态的死亡率最高，48 h时死亡率均达到100%。此外，时间对磷化氢熏蒸赤拟谷盗和锈赤扁谷盗两种虫的各虫态死亡率均具有显著影响（P<0.05），在相同的温度条件下，延长熏蒸时间能够显著提升磷化氢对赤拟谷盗和锈赤扁谷盗各虫态的杀伤效果（P<0.05），熏蒸处理48 h后两种害虫的死亡率均达到100%。【结论】 温度、时间及其交互作用对磷化氢熏杀赤拟谷盗和锈赤扁谷盗的各虫态均具有显著影响，其中随着温度的升高，磷化氢熏杀这两种害虫各虫态的死亡率均会显著增加。

 [Aim]  To clarify the influence of temperature on the effectiveness of phosphine (PH₃) fumigation for the control of stored grain pests. [Methods]  Two main stored grain pests, Cryptolestes ferrugineus and Tribolium castaneum, were chosen as the research subjects. The eggs, larvae, pupae and adults of these two species were exposed to 400 mL/m³ PH₃ for 12, 24, 36, and 48 h at 20, 25 and 30 ℃, after which mortality was assessed. [Results]  Mortality of T. castaneum larvae, pupae and adults at 25 and 30 ℃ was significantly higher than at 20 ℃ (P<0.05). The duration of fumigation required to kill all developmental stages of C. ferrugineus was significantly less at 25 ℃ than at 20 ℃ (P<0.05). The highest mortality of all developmental stages of  C. ferrugineus and T. castaneum was observed at 30 ℃. At 30 ℃, 100% mortality was achieved in 48 h. In addition, fumigation duration significantly affected the mortality rates of all instars of both C. ferrugineus and T. castaneum (P<0.05). Under the same temperature, extending the fumigation duration enhanced the killing effect of PH₃ on the both pests (P<0.05), achieving 100% mortality after 48 h. [Conclusion]  Temperature, duration, and their interaction significantly influenced the mortality rates of all instars of both C. ferrugineus and T. castaneum. The mortality rates of both pests increased significantly with rising temperature.