The experiment was conducted in the years 2004–2006 at the Experimental Station in Tomaszkowo near Olsztyn (NE Poland). The aim of this study was to determine the effect of different weed control, nitrogen fertilization and fungicide application on the health status of winter triticale cv. Woltario.
Weed control affected the severity of leaf and spike diseases in winter triticale, which was the highest following harrowing and herbicide application and the lowest in the treatment when only herbicides were applied. The effect of weed control on the incidence of root and foot rot diseases varied. The highest infection intensity was noted on the leaves of plants in the treatment where nitrogen fertilizers were applied to soil at three rates, while the leaves of non-fertilized plants were infected to the lowest degree. Foliar nitrogen fertilization significantly improved the health of plants, as compared with soil fertilization. Chemical control with fungicides was found to be a highly effective strategy for leaf and stem base diseases.
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