TAKE-ALL ROOT ROT Robert L. Bowden Extension Specialist, Plant Pathology Fig. White heads occur in patches. Black discoloration of roots and lower stem.
Symptoms are often first detectable around jointing time.
Affected plants are stunted and yellow compared to healthy plants. This early phase of take- all usually goes unnoticed. After heading time, take-all symptoms are much easier to detect. The white heads contain little or no grain. Plants may die individually or in large patches.