SUMMARYA surely of 174 fields showed that take‐all was the major disease affecting yield when two or more successive crops of winter wheat were grown. The eyespot‐resistant cultivar Cappelle Desprez comprised more than 90 per cent of the acreage and this may be a factor reducing the incidence of eyespot under this type of cropping. The effect of husbandry practices such as previous cropping, date of sowing, and the time interval between ploughing and sowing, were examined in relation to the incidence of take‐all. With increasing intensity of cropping there was an increase in the amount of nitrogenous fertilizer used but this appeared only to maintain yield in the face of increasing disease. It was possible to establish a limited relationship between the incidence of take‐all at G.S.3 and that present at G.S.10‐5. A highly significant effect of take‐all at G.S.10‐5 on yield wa
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