The effects of various crops on the survival and carry‐over of the wheat take‐all fungus Gaeumannomyces graminis var. tritici

The effects of various crops on the saprophytic survival and carry‐over of Gaeumannomyces graminis var. tritici were studied in the glasshouse and field. In the glasshouse, survival of G. g. tritici was greater in unplanted pots than in pots planted with either cereals or non‐cereals. In the field, fallow and various non‐cereal crops reduced carryover of take‐all but the disease was severe after wheat, barley and triticale. Grain yields were higher after fallow and non‐cereals than after cereal crops.