Tomato (Solanum lycopersicum L.)
Early blight(Alternaria solani)
Symptoms
- Brown coloured circular lesions can be seen on the leaf surface.
- These lesions enlarge and concentric zonations can be seen on the leaves.
- A yellow halo is seen around the lesions.
- Adjacent lesions coalesce and result in blighting.
- Cause defoliation of leaves.
- Lesions can be also seen on stem, calyx etc. It also spread to the fruits.
Management
- Maintain the health of the plant
- Use of disease-free seeds from healthy fruits
- Removal and destruction of 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, Dhanuka M-45, Dithane, Dithane M-45, Hilthane, Hindustan M 45, Indofil M 45, Izeb M-45 Manzate, Luzen-45, Macoban, Macoban M-45, Mancosaan, Mancosaan M-45, 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 (1.5 kg) | Soil drenching |
| 2 | Carbendazim 50 WP | Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, Carben, Carziim50, Dhanustin, Dhanustin 50 WP, Fungiguard, Gancarzin50, Glizim, Mintho, Tagstin, Tiara, Zoom | Green | 1 g | 10 g | 200 g | 500 g (0.5 kg) | Soil drenching |
Extremely Toxic
Highly Toxic
Moderately Toxic
