| abstract |
A stable solid pesticide formulation contains an alpha-cyanobenzyl ester of a synthetic pyrethroid together with an organic phosphate ester as active ingredients, supported on a mineral carrier; and also a weakly acidic salt of an alkali or alkaline earth metal as stabiliser (such as an alkali borate, alkali or alkaline earth phosphate, or alkaline earth carbonate, acetate or silicate). Specifically claimed stabilisers are calcium carbonate, magnesium carbonate, barium carbonate, sodium phosphate, sodium monohydrogen phosphate, sodium polyphosphate or sodium tripolyphosphate. |