Tomato Diseases
Powdery Mildew
Symptoms
- Irregular, bright yellow blotches with yellow halo appear on leaves.
- Abundant white sporulation in the infected area of leaves.
Identification
- Causal agent: Leveillula taurica (Oidiopsis sicula) Oidiopsis type
- Pathogen characters: Hyaline and septate, endophytic
- Sexual spores: Ascospores in ascocarp (Chasmothecium)
- Survival and Mode of Spread:
> Survival: Obligate parasite
> Primary spread: Infected debris
> Secondary spread: Wind
- Favourable conditions: Warm and dry weather
Management
- Field sanitation
- Seed treatment with Bacillus subtilis @ 10 g/kg seeds
|
Fungicide |
Dosage |
|---|---|
|
200 ml/acre |
