| 摘要 |
PROBLEM TO BE SOLVED: To enable to control various harmful insects such as snout beetles in a fumigation time equivalent to methyl bromide fumigation by combinedly using specific two compounds. SOLUTION: Hydrogen phosphide or a metal phosphide generating hydrogen phosphide is combinedly used with carbonic acid gas. A concentration of the hydrogen phosphide is 0.3-2g/m<3> and a concentration of the carbonic acid gas is 5-10%. As the metal phosphide, aluminum phosphide, magnesium phosphide or zinc phosphide, etc., can be used. As a fumigation method of vegetoanimal products and their processed materials, e.g. as shown in the figure, tapioca pellets are stowed in the hold of a grain carrier and a required amount of aluminum phosphide is administrated onto the surface of the tapioca pellets in a state of opening a hatch of the hold, the hatch is closed and sealed. Next, a circulator sucking a gas from a pipe 2 and ejecting from a pipe 3 is driven and CO2 is administrated from a pipe 1 while ejecting air. |
