Crop Protection — Cabbage Disease 4
Black spot: Alternaria sp.
| Black spot: Alternaria sp. Symptoms In older plants, leaves, petioles, and stems small, brown to black circular to slightly elongated spots appear. Sometimes the spots join together. It causes damage to cabbage heads and cauliflower curds after maturity and during seed production stage. Management First foliar spraying with Tridemorph 0.1% followed by spraying with Mancozeb 0.25% a month interval. |
Symptoms
- In older plants, leaves, petioles, and stems small, brown to black circular to slightly elongated spots appear. Sometimes the spots join together.
- It causes damage to cabbage heads and cauliflower curds after maturity and during seed production stage.
Management
- First foliar spraying with Tridemorph 0.1% followed by spraying with Mancozeb 0.25% a month interval.