New pest control or fertility product registration requirements include many tests aimed at establishing the potential for phytotoxicity and injury to crop. During crop safety validation, usage rates are increased at several times field levels and common tank mix partners are used to simulate potential situations where plant injury may occur. Our test of product safety emphasizes various growing regions where plant cuticle development differs, and extreme environmental conditions where plant stress may predispose tissues to phytotoxicity. Pacific Ag can identify subtle effects of products on plant development and physiology and our staff are noted world experts in recognizing and quantifying both morphological and physiological injury of pesticides to plants.