Take-all in winter wheat - management guidelines (HGCA Autumn 2006)

Disease progress in crop sequences

Figure 1 illustrates how take-all develops in successive wheat crops. Primary and secondary phases of infection, as well as relative yields, are shown for each year. Crop debris, which contains inoculum, starts to decay soon after harvest. The rate of decay is an important determinant of amounts of disease in second and subsequent crops.


Figure 1. Diagrammatic representation of take-all development in successive wheat crops, and relative yield effects
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