Synergistic action between ioxynil, bromoxynil acids and aminotriazole

SUMMARY Two halogenated organic compounds, ioxynil acid and bromoxynil acid, were shown to inhibit the oxidation of aminotriazole in a free radical generating system. When hypotoxic concentrations of aminotriazole plus ioxynil acid or bromoxynil acid were applied as sprays to wheat plants synergistic action was observed; whereas the three chemicals applied separately caused no damage to wheat plants, the combined spray destroyed them. The statistical analysis of the results confirms that the above combinations act synergistically.