Material Quality:solid fumigant Function:kill mites, imago,pupas,larva Advantage:good effect,easy ... mmiosture it release phosphine(PH3), an effective insecticidal fumigant.b. used as a fumigant in bulk grain and peanuts, animal feed, leaf ... tobacco stores, cottonseed, and as a space fumigant in flor mills, warehouses , and railcars.Registered No.PD84121-16Standard ...