Bengal gram, also known as chana or chickpea, is an important rabi pulse crop grown widely in India. It is valued for its high protein content, good market demand, and ability to improve soil fertility. However, Bengal gram is sensitive to several fungal diseases, especially when the weather is cool and humid. These fungal infections can reduce plant growth, damage pods, and even destroy the entire crop if not managed properly. Understanding how to identify and control fungal diseases helps farmers protect their fields and secure better yields.
The most common fungal diseases in Bengal gram are wilt, collar rot, root rot, and Ascochyta blight. Wilt causes sudden drying of plants, even when soil moisture is adequate. Collar rot affects seedlings, making them fall over. Root rot leads to yellowing leaves and poor root health. Ascochyta blight causes dark spots on leaves, stems, and pods, especially during rainy or cloudy weather.
One of the most effective ways to control fungus starts before sowing. Farmers should select healthy, disease-free seeds and avoid seeds taken from infected fields. Seed treatment is very important for Bengal gram because it protects the crop during the early growth stage. Treating seeds with a suitable fungicide helps prevent wilt, root rot, and seedling diseases. Seed treatment is a low-cost method but gives strong protection.
Crop rotation is another useful practice. Growing Bengal gram repeatedly on the same land increases fungal attack. Farmers should rotate chana with crops like cereals (wheat, maize) or oilseeds (mustard) to break the disease cycle. This reduces fungal spores present in the soil.
Proper field preparation and drainage are also essential. Bengal gram cannot tolerate waterlogging, and excess moisture encourages fungal growth. Fields should have good drainage, especially in heavy soils. Raised beds or broad-bed furrow planting helps reduce fungal infections by improving aeration and preventing stagnant water.
During crop growth, farmers must monitor the field regularly. If they notice sudden drying, yellowing, or brown spots, early action can prevent the disease from spreading. Removing infected plants and disposing of them away from the field helps reduce spread.
Balanced nutrition also plays a role in managing fungus. Applying the right amount of phosphorus and potassium strengthens plant roots and increases disease resistance. Excess nitrogen should be avoided because it makes the plant too soft and vulnerable to fungal attack.
When weather conditions favour fungi—such as continuous fog, cloudy days, or unexpected rainfall—farmers should take preventive steps. Spraying recommended fungicides at the right time helps control diseases like Ascochyta blight. Sprays should be done on calm days so that the chemical spreads evenly on leaves and pods.
Irrigation should be done carefully. Bengal gram requires very limited water. Over-irrigation creates a moist environment that promotes fungus. Light irrigation should be given only when necessary, preferably during pod formation.
Finally, after harvest, farmers should remove crop residues from the field. Fungal spores survive on leftover plant material and infect the next crop. Deep ploughing after harvest helps destroy fungal bodies in the soil.
In simple words, controlling fungus in Bengal gram requires clean seeds, seed treatment, good field drainage, crop rotation, proper nutrition, careful irrigation, and timely spraying. With these practices, farmers can greatly reduce fungal diseases and achieve a healthy, profitable Bengal gram crop.
