50%硫酰氟气体制剂对有害生物杀灭效果的研究

Effect of 50% sulfuryl fluoride gas preparation for killing pest

目的测定硫酰氟与二氧化碳混合气体制剂对有害生物的杀灭效果。方法将硫酰氟∶二氧化碳配制为1∶1混合气体制剂,进行实验室、模拟现场、集装箱现场和毒理学试验,使用剂量15g/m3时,对蚊、蝇、蟑螂、黑皮蠹、小鼠、大肠杆菌和金黄色葡萄球菌24h的死亡率(杀灭率)效果。结果50%硫酰氟气体制剂使用剂量15g/m3时对蚊、蝇、蟑螂、黑皮蠹、小鼠、大肠杆菌和金黄色葡萄球菌24h的死亡率(杀灭率)均达到100%。大鼠的急性吸入毒性LC50均大于5000mg/m3,属微毒类农药,对有害生物防治具有高效微毒多功能的杀灭作用。结论50%硫酰氟气体制剂能具有杀虫、消毒、灭鼠三合一功能,并符合环保节能、首创的新一代熏蒸制剂。

Objective To test the efficacy of mixed gas formulation containing sulfuryl fluoride and CO2 against insects. Methods Undertaking the toxicological test at laboratory, simulating circumstances and containers respectively, with a mixed preparation of carbon dioxide and sulfuryl fluoride （ 1：1 ）, using the dose of 15 g/m^3. Results When using 15 g/m^3 of the 50% sulfuryl fluoride gas preparation, there＇s 100% elimination of mosquito, fly, cockroach, black insects, small rat, colon bacillus and yellow grape-coccus in 24 hours. As to big rat, the acute inhaled toxicity LC50 was higher than 5 000 mg/m^3. The preparation could be deemed as a mild pesticide that could kill pests in an efficient, slightly toxic and multi-functional way. Conclusion The 50% sulfuryl fluoride gas preparation can eliminate worms, bacteria and rats efficiently. It is a suffocating preparation of new generation that is environmental protection and energy saving.