#$%^&*AU2019210564A120190822.pdf#####Abstract A method of controlling insects in stored food comprising the step of contacting said insects with an effective amount of synthetic amorphous silica, such as food grade synthetic amorphous silica in the form of a dust based formulation. The invention also relates to solid insecticide formulations comprising an effective amount of synthetic amorphous silica.- 1/1l40 35 --S 30 - -25 Untreated wheat 20 >; 15 10 - -4-Dryacide -in-MU4 5 0 0 200 400 600 800 1000 Dose rate of dust (mg/kg of grain) Figure 1