Tapioca (Manihot esculenta)
Anthracnose(Colletotrichum gloeosporioides)
Symptoms
- Dark, sunken lesions on leaves, stems, flowers, and fruits.
- The affected leaves wilt and droop downwards.
- Wilted leaves later fall from the plant.
- Cankers can be seen on stems and leaf petioles.
- Death of shoots or die back occurs.
- Soft parts of plant become necrotic, twisted and distorted.
Management
- Do not wet the foliage while irrigation.
- The diseased twigs should be pruned and burnt along with fallen leaves.
- Remove and destroy infected crop 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 | Mancozeb 75 WP | Devidayal M-45, Dhanuka M-45 Dithane, Dithane M-45, Hilthane Hindustan M-45, Indofil M-45, Izeb M-45, Manzate, Luzen 45, Macoban M-45, Mancosaan, Mancosaan M-45 Manzeb 75 WP, Maneb Manzane M-Guard, Savour M-45, Tata M-45 Eurofil -NT, Uthane M-45, Veera Zinthane | Green | 3 g | 30 g | 600 g | 1500 g | |
| 2 | 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 g | 20 g | 400 g | 1000 g | |
Extremely Toxic
Highly Toxic
Moderately Toxic
