Cotton (Gossypium sp.)
Anthracnose (Colletotricum gossypium)
Symptoms
- The disease affects all parts of the plant at any stage of growth.
- Small spots appear on the cotyledons and primary leaves of seedlings, which can be reddish or light in color.
- Stems are often weakened by the disease when attacked through wounds.
- Bolls at any stage can be affected, with the fungus invading both the lint and seeds.
- Lint turns yellow or brown and clumps together.
- Infected bolls develop small, water-soaked, circular, slightly sunken, reddish-brown spots.
- Severely affected seeds are poorly developed, and typically fail to germinate.
Management
- Avoid water logging.
- Destroy infected plant debris.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Hexaconazole 5 EC | Contaf plus, Danzole plus, Force plus 5, Fowmox, Hexaan white, Hexadhan plus, Hexan white, Hexazole Gold, Nagarjuna Mass+, Remo, Sitara plus, Xantho Premium | Blue | 1 ml | 10 ml | 200 ml | 500 ml | Spray in 2 weeks interval to prevent the spread of the disease |
| 2 | Propiconazole 25 EC | Bumper, Dhan, Pinade, Propiguard, Propik Final, Radar, Result, Tilt, Tilt Albu, Zetox | Blue | 1 ml | 10 ml | 200 ml | 500 ml | |
| 3 | Carbendazim 50 WP | Bavistin , Benfil , Bengard, Benlate , Benmain, Bensaan, B-stin 50 WP, JK Stein 50 WP Carben, Carziim 50,Dhanustin, Dhanustin 50 Wp, Fungiguard Gancarzin 50 , Glizim, Mintho Tagstin, Tiara, Zoom | Green | 2 gram / kg of seed | ||||
Extremely Toxic
Highly Toxic
Moderately Toxic
