Powdery mildew is a common fungal disease affecting chilli plants, causing significant yield losses if left untreated. This disease appears as a white powdery coating on leaves, stems, and fruits, impacting photosynthesis and plant health. Powdery mildew caused by the fungus Leveillula taurica. In this blog, we'll discuss the symptoms, causes, and effective control measures for powdery mildew in chilli crops.
Classification:
- Type of Infestation: Disease
- Common Name: Powdery Mildew
- Scientific Name: Leveillula taurica
- Category of Plant Disease: Fungal Disease
- Mode of spread: Air borne, Direct Contact, Infected Seeds
- Affected parts of plant: Leaves, Stem, Flowers
Favorable factors for development of disease:
- Warm temperatures: Powdery mildew thrives in temperatures between 20-28°C (68-82°F). Cooler temperatures below 18°C (64°F) discourage its growth.
- High humidity: The fungus needs moisture to spread and germinate spores. Humidity levels above 60% favor its development. Frequent rain, morning dew, and poor ventilation can contribute to high humidity.
- Poor air circulation: Dense foliage can restrict airflow.
Symptoms:
- White Powdery Coating
- Yellowing or browning Areas affected
- Leaf curling upwards
- Premature leaf drop
- Fruit Quality Impact
Control measures for Powdery Mildew Disease in Chilli:
|
Products |
Technical Names |
Dosages |
|
Tebuconazole 10 % + sulphur 65 % wg |
400 - 500 gm/acre |
|
|
Sulphur 80 % wdg |
750 to 1000 gm/acre |
|
|
Hexaconazole 5 % SC |
200-250 ml per acre |
|
|
Azoxystrobin 11.00 % Tebuconazole 18.30 % SC |
300 ml/ Acre |
|
|
Mancozeb 40% + Azoxystrobin 7% OS |
600 ml/acre |
Frequently Asked Questions
Q. What is Powdery Mildew?
A. It is a fungal disease that affects chilli leaves, stems, and fruits with a white powdery coating.
Q. What are the symptoms of Powdery Mildew?
A. White powdery coating, yellowing leaves, and premature leaf drop.
Q. What is the main mode of spread for the disease?
A. Airborne, direct contact, and infected seeds.
Q. Which products are effective for Powdery Mildew?
A. TEBUSUL, SULVET, HEXA 5 PLUS.
Q. At what temperature does Powdery Mildew thrive?
A. At temperatures between 20-28°C
Q. What is the key factor to prevent Powdery Mildew?
A. Proper air circulation and good plant management.
For more information about pests and diseases, read our other blogs.
