Berndt K P
Angew Parasitol. 1980 Aug;21(3):164-72.
The reaction of Pharaoh's ants to low temperatures was analyzed under laboratory conditions. It was to be clarified in which way low temperature could be used in control measures. In all of the examined ranges of temperature from + 8 degrees C up to --26 degrees C colonies of the Pharaoh's ants were eradicated. The necessary exposition times reached from 30 minutes at --26 degrees C up to nearly 3 weeks at + 8 degrees C. Most favourable for control measures are temperatures near 0 degrees C which lead to the eradication of large colonies within 6 days. The queens were especially susceptable to temperatures below 0 degrees C, whereas temperatures at 10 degrees C are tolerated much better by queens than by workers. In the developmental stages the eggs and the youngest larvae are most resistant, whereas the full grown larvae including sexual larvae die fast. The results demonstrate that using the winterly temperatures in Middle Europe as an integratory method in the control of the Pharaoh's antis of considerable value.
在实验室条件下分析了法老蚁对低温的反应。旨在阐明低温可用于控制措施的方式。在所有检测的温度范围（从 +8 摄氏度到 -26 摄氏度）内，法老蚁群体均被消灭。所需暴露时间从 -26 摄氏度时的 30 分钟到 +8 摄氏度时的近 3 周不等。最有利于控制措施的温度接近 0 摄氏度，这能在 6 天内消灭大型蚁群。蚁后对低于 0 摄氏度的温度尤为敏感，而蚁后对 10 摄氏度的温度耐受性比工蚁好得多。在发育阶段，卵和最年幼的幼虫最具抗性，而包括有性幼虫在内的成熟幼虫很快死亡。结果表明，将中欧的冬季温度作为控制法老蚁的一种综合方法具有相当大的价值。
