不同温度下低氧高二氧化碳对腐食酪螨的急性致死作用

本实验采用三元一次正交组合设计的方法研究温度、CO_2浓度、O_2浓度三个因子的不同水平的组合对腐食酪螨的急性致死作用。结果表明,导致该螨死亡的最重要因子是CO_2浓度,其次是温度,最后是O_2浓度,CO_2和O_2的互作对螨的死亡率也有一定的影响。温度和CO_2浓度的提高都会缩短气调措施对螨的半数致死时间LT_(50),而O_2浓度的提高则会延长其LT_(50)。防治该螨的最佳组合是在较高温度条件下配以高浓度的CO_2和低浓度的O_2。

THE ACUTE LETHAL EFFECTS OF LOW OXYGEN AND HIGH CARBON DIOXIDE ON TYROPHAGUS PUTRESCENTIAE AT DIFFERENT TEMPERATURES

The paper deals with the acute lethal effects of the different level combination of temperature, carbon dioxide (CO_2) and oxygen (CO_2) on the Tyrophagus putrescentiae using orthogonal combination design. The results showed that high CO_2 was the most important factor that resulted in the mortality of the mites, temperature the second, and low O_2 the last. The interaction between CO_2 and O_2 was likely to influence the mortality as well. The half lethal time (LD_(50)) would become shorter with the increase of temperature and CO_2 concentration, but longer with the increase of O_2 concentration. Considerably higher temperature, combined with high CO_2 and low O_2, was optimum for controlling the mites.