空仓内干法喷施食品级惰性粉杀虫效果评价

Evaluation of the effect of disinsection by spraying food-grade inert dust in empty grain storehouse

针对目前用于防治储粮害虫的空仓杀虫剂效果差,易增加储粮害虫的抗药性,对操作人员身体危害大等问题,在空仓环境内进行了国内自行研制移动式喷粉机干法喷施食品级惰性粉对谷蠹、玉米象、锯谷盗、赤拟谷盗和锈赤扁谷盗等5种储粮害虫成虫的防治效果测试。结果表明,喷粉机施药效果好,药剂形成尘雾分散均匀,在仓房各个方位无明显差异,形成的药膜可在3天内100%杀死供试的储粮害虫成虫。

The insecticidal effect of domestic developed mobile duster and food - grade inert dust on five major species of stored grain imago, Rhizopertha dominica （ Fabricius ）, Sitophilus zeamais （ Motsehul- sky） , Oryzaephilus surinamensis （ Linn6 ） , Tribolium castaneum （ Herbst ） , Cryptolestes ferrugineus （ Stephens） , operating empty grain storehouse, was tested in order to solve the problems, such as poor effect, insect resistance, and harm to operators. The results showed that the duster possessed good spraying effect with uniform dispersion of dust without obvious difference inside of the grain storehouse, the mortality rate of the store pests in the test reached 100% in 3 days.