A Comprehensive Guide to Fungal Disease Management in Onion – Official Solutions from India’s Ministry of Agriculture
Disease Management in Onion Crop in India
18 May 2025, New Delhi: Onion cultivation in India faces frequent threats from a variety of fungal diseases, leading to reduced yields and post-harvest losses. The Central Insecticide Bureau (CIB) under India’s Ministry of Agriculture has approved specific fungicides for effective disease control in onion crops. Here’s a consolidated view:
| Disease | Fungicide | Dosage (a.i.) | Formulation | Water Dilution | Waiting Period |
|---|---|---|---|---|---|
| Downy Mildew | Zineb 75% WP | 1.125 – 1.5 KG | 1.5–2 KG/ha | 750–1000 L/ha | – |
| Blight | Zineb 75% WP | 1.125 – 1.5 KG | 1.5–2 KG/ha | 750–1000 L/ha | – |
| Damping-off | Carbendazim + Mancozeb WS | 7.5 + 15 g | 30 g/ha | 10 L/ha | – |
| Downy Mildew & Purple Blotch | Fluopicolide + Propamocarb SC | 62.5 + 625 to 78.1 + 781.3 g | 1000–1250 ml/ha | 375–500 L/ha | 25 days |
| Post-harvest Diseases (Black mold, Neck rot) | Fluopyram + Tebuconazole SC | 75 + 75 g | 375 ml/ha | 500 L/ha | 30 days |
Timely application of these recommended solutions ensures healthy growth, improved storage, and better market returns for farmers. These fungicides should be used as part of an Integrated Disease Management (IDM) approach for sustainable onion cultivation.
Also Read: Two Decades of Bt Cotton in India: A Story of Progress and Persistent Challenges
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