Determination of Associated Toxicity of Mixed Pesticides to Myzus persicae (Sulzer)

The indoor associated toxicity of 10 different mixtures of 9 pesticides to Myzus persicae (Sulzer) were determined by Sun co-toxicity coefficient method. Synergism was found in five mixtures of Kungfu+DDVP, Mieyaning+Dipterex, Decis+Dipterex, Carbaryl+Dipterex and Kungfu+Decis, their co-toxicity coefficients were 822.4,795.5,708.3,400.9 and 307.1, respectively. Antagonism was found in the others, their co-toxicity coefficient were below 100. The synergic mixtures promise further indoor and field trials.