Top Soybean Diseases in India and Their Effective Chemical Control
13 August 2025, New Delhi: Soybean farmers in India are often challenged by multiple fungal and viral diseases that can significantly reduce yield if not managed promptly. The National Soybean Research Institute provides the following guidance for effective disease control in soybean crops.
1. Rhizoctonia Aerial Blight:
Symptoms of Rhizoctonia aerial blight require immediate action to prevent further damage. Recommended fungicides include:
- Fluxapyroxad + Pyraclostrobin at 300 g/ha
- Pyraclostrobin + Epoxiconazole at 750 ml/ha
- Pyraclostrobin 20% WG at 375–500 g/ha
Application of these fungicides at the first signs of disease can help contain the spread and protect your crop.
2. Anthracnose:
Early detection is critical for controlling anthracnose. Farmers are advised to spray:
- Tebuconazole 25.9 EC at 625 ml/ha
- Tebuconazole 38.39 SC at 625 ml/ha
- Tebuconazole 10% + Sulphur 65% WG at 1.25 kg/ha
- Carbendazim 12% + Mancozeb 63% WP at 1.25 kg/ha
Timely fungicide application ensures minimal crop loss.
3. Yellow Mosaic / Soybean Mosaic Virus:
At the first appearance of yellow mosaic symptoms, diseased plants should be uprooted and removed from the field. To prevent the spread by insect vectors such as whiteflies or aphids, apply:
- Flonicamid 50% WG at 200 g/ha
- Thiamethoxam + Lambda-cyhalothrin at 125 ml/ha
- Beta-cyfluthrin + Imidacloprid at 350 ml/ha
- Acetamiprid 25% + Bifenthrin 25% WG at 250 g/ha
Controlling these vectors early is key to preventing viral outbreaks in the crop.
4. Phytophthora Root Rot:
This disease typically occurs after wet weather, causing brown spots on roots and eventual rotting. To manage Phytophthora root rot:
- Ensure proper drainage in the field to avoid waterlogging
- Spray Metalaxyl 4.0% + Mancozeb 64% at 2.5 g/liter (equivalent to 1250 g/ha)
Proper field management combined with fungicide application can effectively reduce disease incidence and improve soybean yield.
Prompt identification and treatment of soybean diseases are essential for maintaining healthy crops. Farmers should closely monitor their fields, apply fungicides as recommended, and adopt preventive measures against pest and vector-borne diseases. Following the National Soybean Research Institute’s advisory ensures better protection and higher productivity.
Also Read: ICRISAT and Partners Discover New Gene for Sterility Mosaic Disease Resistance in Pigeonpea
📢 If You’re in Agriculture, Make Sure the Right People Hear Your Story.
From product launches to strategic announcements, Global Agriculture offers unmatched visibility across international agri-business markets. Connect with us at pr@global-agriculture.com to explore editorial and advertising opportunities that reach the right audience, worldwide.
