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.
Scientific name: Pythium vexans
Type: Fungal Disease
Target: Roots
Damage: Falling of Plant aside
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:
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Products
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Technical Name
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Dosage
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KTM
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Thiophanate Methyl 70% WP
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250-600gm/acre
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COC50
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Copper oxychloride 50 % wp
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2gm/ltr
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Samartha
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Carbendazim 12 % + Mancozeb 63 % WP
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300-400gm/acr
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