Cotton (Gossypium sp.)
Leaf spot (Cercospora gossypiana, Alternaria macrospora)
Symptoms
- The main symptom is spots on the leaves.
- The spots' size, shape, color, pattern, and where they appear can change depending on causing organism .
- As time passes, the spots might join together or get bigger. Leaves with spots turn yellow and fall off.
Management
- Prophylactic spray of Pseudomonas fluorescens (20 gram/ litre of water)
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 | Copper oxychloride 50 WP | Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop | Blue | 3 g | 30 g | 600 g | 1500 g | Prophylatic spray |
| 2 | 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 | Prophylatic spray |
Extremely Toxic
Highly Toxic
Moderately Toxic
