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以防虫磷原油（95％马拉硫磷）为有效成分，配合燃质、助燃剂等辅助材料研制成粮食保护烟剂。产品为黑色粉末状，点燃后产生大量白色烟云，使99％以上有效物质得以均匀分散，遣留的残渣烧结成块。测试结果表明该烟剂储存稳定，燃点162℃，对人畜低毒。用此烟剂进行实验室与粮仓内试验，玉米象SitophiluszeamaisMotsch成虫在烟云中停留20min，过6h后致死中量LD50为0．3425g／m3，而在放烟24h后承接沉降物的玻皿中爬行10min，6h后LD50为0．2429g／m3。黑皮囊Allagenuspiceus（Oliv）幼虫在烟云中停留20min后LD50为几0．9365／m3。仓库内对无虫或表面有少量害虫的储存小麦按0．05g／m2烟剂量处理粮面即可防除害虫．安全储存半年以上。对一般性虫粮采用粮面放烟与低剂量磷化铝熏蒸相配合，即可达到防治标准，且省工、省时、明显降低防治费用。
Pest insecticidal phosphorus crude oil (95% malathion) as the active ingredient, with fuel, oxidant and other auxiliary materials developed into the food protection of tobacco. Products are black powder, lit a large number of white clouds, so that more than 99% of the effective substances can be evenly dispersed, the remaining residue sintered into blocks. Test results show that the smoke storage stability, ignition temperature 162 ℃, low toxicity to humans and animals. Experiments were conducted in laboratory and granary with this smoking agent. The adult corn of Sitophilus zeamais Motsch stayed in the cloud of smoke for 20 min. After 6 h, the lethal medium dose of LD50 was 0.3425 g / m 3 and was crawled in a glass dish following the release of smoke for 24 h After 10min, LD50 is 0.2429g / m3 after 6h. The larvae of Allagenus piceus (Oliv) on black albuginea had a LD50 of 0.9365 / m3 after staying in the cloud for 20 min. Storage of insects on the surface or a small amount of pests stored in wheat grain 0.05g / m2 dose of grain surface treatment to control pests. Safe storage for more than six months. On the general use of food insects grain grain smoke and low doses of aluminum phosphide fumigation match, you can achieve prevention and control standards, and labor-saving, time-saving, significantly reduce the cost of prevention and treatment.