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Formulation: fumigant, packed as a bag, plate or pellets. Active substance: aluminium phosphine 56% or magnesium phosphine 56%. Coleoptera. Lepidoptera.
12 gru 2012 · Treatment name: phosphine fumigation. Treatment type: chemical. Formulation: fumigant, packed as a bag, plate or pellets, tablets. Active substance: aluminium phosphine 56% or magnesium phosphine 56%. Treatment conditions. Mode of action: fumigation at atmospheric pressure. Growth stage: post-harvest pest control
This standard describes the phosphine fumigation of different stored products to control stored product insects in general. To control Trogoderma granarium, see the specific standard (PM 10/22). For dried fruits and nuts, see PM 10/23.
Mg 3 P 2 + 6H 2 O 2PH 3 ^ + 3Mg (OH) 2. Aluminium phosphide is formulated 8S tablets, pellets or small sachets of powder with additional materials such as ammonium carbamate, ammonium bicarbonate, urea and paraffin to regulate release of fumigant and suppress flammability.
Phosphine remains the single-most relied upon fumigant to control stored grain pests in Australian grain-production systems, but continued misuse is resulting in poor insect control and developing resistance in key pest species (see Figure 1).
FUMIGATING WITH PHOSPHINE, OTHER FUMIGANTS AND CONTROLLED ATMOSPHERES Weevil Saw-toothed grain beetle Fumigation trials in silos with small leaks demonstrate that phosphine levels can reach as low as 3ppm close to the leaks. The rest of the silo also suffers from reduced gas levels, making it impossible to kill insects at all life stages.
17 sie 2023 · It can be released from either aluminium phosphide (AlP) or magnesium phosphide in the presence of atmospheric moisture as per the following equation: $$\mathrm {Metallic\;phosphide }+ 3 {\mathrm {H}}_ {2}\mathrm {O }\to \mathrm { metallic }\; { (\mathrm {OH})}_ {3} +\mathrm { phosphine\;gas}$$.
