When pH is too high many chemical mixes for spraying degrade quickly. EC Geiger has introduced 'pHase5' an adjuvant that is added to the water before mixing the chemical(s). The solution turns pink when the pH is optimal at 4.5-5.5. It also contains wetters, spreaders to increase the efficiency of the products in question. Many chemicals such as dithiocarbamates and fungicides such as benzimidazoles have a half-life of minutes or hours at high pH but are stable for days at a pH of around 5. "Floraculture International" www.floracultureint.com Fax 001 215 256 611