The efficacy of low temperatures ranging from 0 to −15 °C was evaluated against all life stages of Tribolium confusum, adults of Oryzaephilus surinamensis and adults of Liposcelis bostrychophila. All species/life stages were exposed in empty vials or vials containing 5 g of flour, for time intervals of 2–7 d. Eggs and pupae were the least susceptible life stages of T. confusum, as these life stages had the highest survival at – 15 °C. Nevertheless, at this temperature, an exposure of 4 and 8 h for eggs and pupae, respectively, resulted in no survival. In most combinations, the presence of flour did not affect survival of T. confusum exposed to any temperature. There was no survival of O. surinamensis adults after exposure to −5 °C for 7 d or to −10 °C for 8 h, and the presence of flour had no effect on survival. Adults of L. bostrychophila were the most-cold tolerant among the species and life stages tested; at −10 °C, mortality was 100% only after 7 d of exposure. For this species, the presence of flour had some effect on adult survival, but results were not consistent with temperature. The results of this study can be utilized to develop control programs for using low temperatures as a disinfestation strategy for infested commodities.

低的温度范围从0到-15的功效℃下针对的所有生命阶段评价杂拟谷盗，成人锯谷盗和成虫嗜卷书虱。将所有物种/生命阶段暴露在空的小瓶或装有5 g面粉的小瓶中，时间间隔为2-7 d。鸡蛋和p是孔雀菌最不易感的生命阶段，因为这些生命阶段在– 15°C时存活率最高。然而，在此温度下，鸡蛋和p分别暴露4小时和8小时，无法存活。在大多数组合中，面粉的存在并不影响暴露于任何温度下的孔雀菌的存活。没有生存暴露于-5°C达7 d或暴露于-10°C达8 h的苏里南O. surinamensis成虫，面粉的存在对存活率没有影响。在所测试的物种和生命阶段中，嗜乳杆菌的成虫耐受性最高。在-10°C下，仅在暴露7 d后死亡率为100％。对于该物种，面粉的存在对成年存活率有一定影响，但结果与温度不一致。这项研究的结果可用于制定控制程序，以将低温用作被感染商品的灭虫策略。