Measures to Control Dry Root rot in Green Gram

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: