Damping-off is a disease that affects seedlings, causing them to rot and die before or shortly after they emerge from the soil. It is a common problem, especially for seedlings grown indoors or in greenhouses. Cardamom, a highly valued spice, is susceptible to various diseases, with damping-off being a major concern in nurseries. Damping-off refers to a fungal disease complex that attacks young seedlings, causing them to rot and die.
Environmental favorable factors for pests/Diseases:
- High humidity and moisture: Fungi thrive in damp conditions. Excessive watering, poor drainage, and overcrowding of seedlings create a perfect environment for fungal growth.
- Cool temperatures: Temperatures below 24°C (75°F) can weaken seedlings and make them more susceptible to disease.
Symptoms of Pest/Disease:
- Discoloration of leaves: The first signs of damping off are often pale or yellowing leaves, particularly at the tips.
- Wilting and death of seedlings: As the disease progresses, the leaves will wilt and die. The stem may become soft and mushy, and the entire seedling may collapse and die.
- Rotting of the collar region: The base of the stem, where it meets the soil, may become discolored and rotted. This is a clear sign that the damping-off fungus has infected the plant.
Measures to control Pests/Diseases:
|
Products |
Technical Name |
Dosage |
|
Thiophanate Methyl 70% WP |
250-600gm/acre |
|
|
Copper oxychloride 50 % wp |
2gm/ltr |
|
|
Carbendazim 12 % + Mancozeb 63 % WP |
300-400gm/acr |
