Brinjal Diseases
Alternia Leaf Spot
Symptoms
- Cracks appearing in leaf spot
- The two species of Alternaria occur commonly, causing the characteristic leaf spots with concentric rings.
- The spots are mostly irregular, 4-8 mm in diameter and may coalesce to cover large areas of the leaf blade.
- Severely affected leaves may drop off.
- A. melongenae also infects the fruits causing large deep-seated spots.
- The infected fruits turn yellow and drop off prematurely.
Management
- Spray mancozeb @ 2 g/l
- Spraying 1 per cent Bordeaux mixture or 2 g Copper oxychloride or 2.5 g Zineb per litre of water effectively controls leaf spots.
- Spray any of the following fungicides
|
Insecticide  |
Dosage |
|---|---|
|
  1.0 kg with 50 kg of FYM/acre at 30 days of transplanting |
|
|
 2g/lit |
|
|
 2g/lit |
|
|
1ml/lit |
