Pathogen Information
Powdery mildew is caused by the fungi family Erysiphaceae and is one of the most common diseases around the world, common symptoms are:
- white powdery growth on leaves and stems
Environmental Conditions
- Temperature: 60-80°F
- Humidity: 90%+
- Most effected species: Effects all plants with species specfic to the plant
Disease Progression
Early Stage
Small whtie spot begin to appear on the leaves
Mid Stage
Growth will continue to grow as the leave becomes cover is a flour like substance
Late Stage
Leaves begin to curl and yellow
Prevention Methods
- Avoid overhead irrigation
- Maintain proper plant spacing
- Remove and destroy infected plant debris
- Use disease-free seeds and resistant varieties
- Rotate crops with non-susceptible plants
- Keep leaves dry and improve air circulation
Treatment Options
- potassium bicarbonate
- Neem oil treatments
- sulfur-based fungicides
