Drooping leaves may recover at night. Often only half of a leaf wilts initially. The leaves on the other side of the plant appear normal. This unilateral characteristic is a predominant symptom. Wilting of leaves on one side of the plant is a symptom of early infection by Granville wilt.
Affected leaves become light green to yellow, eventually wilt and occasionally are scalded.
Early in the course of the disease a few roots will be decayed. As the disease progresses, the entire root system usually decays and becomes blackened. If adequate water is present, infected roots become soft and slimy. A characteristic symptom of Granville wilt is a tan or brown discoloration that develops in the vascular tissue just beneath the bark of infected plants . As the pith and cortex are invaded, they too become discolored.