Dry root rot is a common plant disease that affects a wide variety of plants, from vegetables and fruits to trees and ornamentals. It is caused by several different fungi, most commonly Macrophomina phaseolina and Rhizoctonia solani. These fungi attack the roots of the plant, causing them to rot and die. This can lead to wilting, stunting, and eventually death of the plant. This silent enemy lurks in the soil, attacking the roots and leaving devastation in its wake.
- Type of Infestation: Disease
- Common Name: Root Rot
- Causal Organism: Rhizoctonia solani
- Affected Parts Of the plant: Roots, Stem base, Leaves
Environmental favorable factors for pests/Diseases:
- Temperature: 25-35°C (77-95°F). Warm temperatures accelerate fungal growth and activity, making plants more susceptible.
- Humidity: The fungus thrives in dry soil, as water stress weakens plants and makes them more vulnerable to infection.
Symptoms of Pest/Disease:
- Wilting: This is a key sign, especially if it persists even during cooler periods, unlike other wilting diseases. Wilting starts from the bottom leaves and progresses upwards.
- Yellowing: Leaves, starting from the lower portions, will turn yellow as water and nutrient uptake is disrupted.
- Stunted growth: Affected plants will be smaller and weaker than healthy ones.
- Defoliation: Severely infected plants may shed leaves, leaving bare stems.
- Dry and rotted: Extract the plant gently and examine the roots. Infected roots will be dry, shriveled, and brown, lacking the healthy white color.
- Black sclerotia: Look for small, black, seed-like structures clinging to the diseased roots. These are sclerotia, fungal structures that help the pathogen survive in the soil.
Measures to control Pests/Diseases:
|
Products |
Technical Names |
Dosages |
| KTM | Thiophanate Methyl 70% WP | 250-600 gm/acre |
| Coc50 | Copper oxychloride 50 % wp | 2gm/ltr |
| Tyson | Trichoderma Viride | Mix 1 – 2kg |
FAQs on Controling Dry Root rot in Green Gram
Q. How do you treat dry root rot in Green Gram?
A. Treat dry root rot with products like KTM (Thiophanate Methyl 70% WP) and Coc50 (Copper Oxychloride) to control the disease and ensure healthy growth.
Q. What is dry root rot of Green Gram?
A. Dry root rot in Green Gram is caused by fungi like Rhizoctonia solani, leading to wilting, yellowing, and root damage. Timely treatment can save your crops.
Q. How to save a plant with root rot?
A. Use Trichoderma Viride and apply it to the soil to combat root rot. Also, maintain soil moisture balance and apply fungicides like KTM to prevent further damage.
Q. What is the chemical treatment for root rot?
A. For root rot treatment, use KTM (Thiophanate Methyl 70% WP) and Coc50 (Copper Oxychloride 50% WP) as effective fungicides. These prevent fungal infections and root damage.
