Effect of temperature fluctuations and storage period on pesticide stability in formulation concentrates used in forestry

摘要

Pesticide formulation concentrates should maintain their physicochemical stability from the time of preparation until field application. Literature information on pesticide stabilty is lacking at present, especially after field storage under the conditions of the operational spray programs for forest pest control. The present study provides information on the influence of water hardness, pH, formulation ingredients, carrier media, storage periods, and temperature fluctuations, on phase separation, pesticide hydrolysis, degradation and metabolism, in some simple formulation concentrates prepared in the laboratory, and in some complex formulation concentrates obtained from pesticide companies.