通过比较分析3种不同实仓施药方式硫酰氟熏蒸高大平房仓的穿透力、均匀性和杀虫效果，探索硫酰氟在实仓熏蒸的最佳工艺。结果表明，硫酰氟气体可在2.5 h内自然扩散穿透粮堆，24 h左右达到整仓基本均匀。环流熏蒸可以加速气体均匀，但此次实验环流过程中导致了一定药剂损失。在整仓熏蒸、膜下上行环流和膜下下行环流的3种熏蒸方式中，整仓熏蒸操作最为简便，可用于快速杀灭成虫；膜下上行环流方式，药剂损耗量较大；膜下下行环流，浓度均匀速度快，用药量较整仓小，药剂浓度保持时间长，杀虫效果好。
This study aims at sulfuryl fluoride fumigation in large warehouses. By comparing and analyzing the penetration, uniformity and insecticidal effect of three different methods of application in the real warehouses. The best technology for sulfuryl fluoride fumigation in the real warehouses was explored. Research results show that sulfuryl fluoride gas can diffuse through the grain pile naturally within 2.5 hours, and penetrate the entire warehouse within 24 hours. Recirculation fumigation can accelerate the uniformity of the gas, but it causes more chemical loss. Among the three fumigation methods, the whole warehouse fumigation operation is the simplest and the most effective in killing adults. The upward recirculation fumigation under the membrane causes large chemical loss, while for the downward recirculation fumigation under the membrane, the concentration is uniformly distributed, even though the dosage is smaller. The concentration of the agent is maintained for a long time, and the insecticidal effect is significant.