Environmental concerns are facilitating growth in the use of synthetic inert dusts, such as Insecto and Dryacide, particularly in Australia. Recently, a desiccant dust has been approved there as a protectant of stored paddy in order to conform to organically grown’ produce requirements. No doubt, the use of these dusts will continue to grow for those applications
which do not depend on grain handling properties. However, the need for relatively large dosages, in comparison with conventional insecticides that affect the physical properties of grain, will remain a drawback to the expansion of their use for large-scale applications.