What is the primary symptom of Damping-off?

The primary symptom of Damping-off is wilting and root rot, which are critical indicators of this disease. Damping-off is caused by a range of fungal pathogens that thrive in damp conditions, typically affecting seedlings before they emerge or shortly after germination. As the pathogens attack the roots and base of the stem, seedlings often exhibit symptoms such as sudden wilting and a soft, water-soaked appearance at the root crown, followed by potential decay. If the roots are compromised due to rot, the plant cannot effectively uptake water and nutrients, leading to wilting.

Other symptoms like yellowing leaves or specific leaf spots can indicate various other plant stresses or diseases, but they are not characteristic of Damping-off. Blight often refers to rapid tissue necrosis and can occur in mature plants, differing from the early-stage effects of Damping-off on seedlings. Thus, understanding the specific symptoms associated with Damping-off is crucial for effective diagnosis and management in a nursery or planting context.