对用凯安保防治立筒仓储粮害虫的适用喷雾技术、有效合理剂量、防护效果、有效防护期及残留变化情况作了详细研究。结果表明：1．采用多喷咀喷雾器、筒仓顶溜管处施药和上下两层各处理4m粮食的喷雾技术有效可行，药剂损耗低、操作安全简便；2．凯安保防治立筒仓储粮害虫采用0．5ppm的剂量有效合理，能够保持储粮一年以上基本无虫，小麦原粮、面粉、麸皮的药剂残留符合国家卫生标准。 The use of Kai security protection vertical silos pests for spraying technology, effective and reasonable dose, the protective effect, the effective protection period and residual changes made a detailed study. The result shows: 1. The use of multi-nozzle sprayer, the top of the silo dispensing tube and the upper and lower two layers of grain processing technology 4m spray technology is feasible, low chemical consumption, safe and easy operation; Kai security precautions legislation silos grain infestation 0.5ppm dose effective and reasonable, able to keep the grain more than a year basically insects, wheat grain, flour, wheat bran residue in line with national health standards.