Common corn smut epiphytoties prognosis for maize protection against disease | Прогноз эпифитотий пузырчатой головни для защиты кукурузы от болезни
2010
Buga, S.F. | Zherdetskaya, T.N., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute of Plant Protection
The prognosis of maize (Zea mays) hybrids affection by common corn smut during season on the base of July weather predictors is substantiated in the conditions of the Republic of Belarus. Maize crop protection with the aim setting on grain according to the prognosis - during the mass affection by common corn smut on the base of the fungicide application term optimization at the stage 51 - tasseling beginning as the most vulnerable for teliospores fungus Ustilago zeae infection is proposed. Maize crop protection efficiency against disease in the conditions of the artificial infectious background with the application of fungicides Rex Duo, CS (0,6 l/ha) and Abacus, SE (1,5 l/ha) on seed dressing background Kinto Duo, FC (2,5 l/t) is showed. Their application at a critical for plant stage 51 provided the biological efficiency in disease control within the limits of 54,7-84,9% by crop harvesting term and made it possible to save from 5,5 up to 8,9 centner/ha of grain.
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