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试验依据CO_2能使储藏物害虫增加对PH_3的吸收,从而提高熏蒸杀虫效果的原理,通过组合不同浓度的PH_3与CO_2进行混合熏蒸防治椭圆食粉螨,并筛选出PH_3与CO_2混合熏蒸的最佳有效组合剂量,即PH_3剂量1～2g/m~3,CO_2浓度16％～32％。
Based on the fact that CO_2 can increase the absorption of PH_3 in stored pests, the principle of fumigation and insecticidal effect can be improved. Combining different concentrations of PH_3 and CO_2 to fumigate and control Euphausi elliptica and screened the most mixed fumigation of PH_3 and CO_2 Good effective combination dose, namely PH_3 dose 1 ~ 2g / m ~ 3, CO_2 concentration 16% ~ 32%.