Black rotCaused by: Alternaria radicina
Problem Category: Fungal Disease
Symptoms: Damping-off of seedlings; root and crown necrosis; blighted foliage; lower portion of petioles black and necrotic; black ring around petiole attachment black, sunken lesions on taproot
Comments: Disease is spread through infected seed and can survive in soil for up to 8 years
Management: Black rot is difficult to control and can survive in the soil for long periods of time: practice long crop rotations ; plow crop residue into soil immediately after harvest; plant resistant varieties; plant only pathogen-free seed; treat seeds with hot water prior to planting
Control: spray 2 times Cowdung+Asafoetida solution in 10 days interval.