Efectividad del formulado ametoctradin 30 % + dimetomorf 22,5 % para el control del tizón tardío (Phytophthora infestans) en el cultivo de la papa (Solanum tuberosum)
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Abstract
Late blight, caused by Phytophthora infestans (Mont.) de Bary, is the most important disease in potato crop (Solanum tuberosum L.). The use of chemical fungicides, as a fundamental strategy, has become necessary for the disease management; so the search of new active ingredients to be incorporated has great importance. The effectiveness of the for- mulated Ametoctradin 30% + dimetomorf 22.5% under field conditions was evaluated in this work. Blight severity was assessed by determining the leaf area affected before each application. Ametoctradin 30% + di- metomorf 22.5% at a dose of 0.36 + 0.27 kg a.i./ha, showed a severity of 13.47% while potassium phosphite standard chlorothalonil 37.5 % + 25.5 % reached a severity of 21.05%. According to these results, the formulated ametoctradin 30% + dimetomorf 22.5% may be an alternative strategy to incorporate in the control of P. infestans in potato cultivation.
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References
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