Viola Diseases – Symptoms & Control

 Viola Perennial Shrub Diseases:   Aster Yellows: Symptoms – Leaves are yellowed and narrow rather than oval. An abnormally high number of shoots form. Management – Remove infected plants. Control leafhoppers.   Bacterial Infection: Symptoms – An abnormally high number of shoots form Management – Remove infected plants. Black Root Rot: Symptoms – Plants are yellowed, stunted and die. Management – Try […]

Viola Perennial Shrub Diseases – Symptoms & Control