Powdery mildew of Strawberry

Symptoms:

1. White Powdery Growth: The most distinctive symptom is the presence of a white, powdery substance on the surfaces of leaves, stems, flowers, and sometimes fruit.
2. Leaf Curling and Distortion: Infected leaves may exhibit curling, distortion, and reduced expansion.
3. Stunted Growth: Severe infections can lead to stunted growth and reduced vigor of the strawberry plants.

Identification:

1. White Powdery Growth: Easily identify powdery mildew by the characteristic white powdery growth on leaves, stems, flowers, and fruit.
2. Circular Patches: The powdery growth often forms circular patches, especially on the upper surface of leaves.
3. Leaf Curling and Distortion: Observe for leaf curling, distortion, and yellowing associated with the powdery growth.

Management:

Cultural Practices:

1. Pruning: Promote good air circulation through proper pruning to reduce humidity around strawberry plants.
2. Spacing: Ensure proper plant spacing to minimize overcrowding and facilitate air movement.

Resistant Varieties:

1. Plant Resistant Strawberry Varieties: Utilize strawberry varieties that are bred for resistance or tolerance to powdery mildew.

Fungicide Application:

1. Regular Sprays: Apply fungicides preventatively and regularly, especially during periods conducive to powdery mildew development.
2. Systemic Fungicides: Consider using systemic fungicides that provide protection to new plant growth.

Sanitation:

1. Remove Infected Debris: Collect and destroy infected leaves and plant material to reduce the overwintering source of the pathogen.

Regular Monitoring:

1. Scouting for Symptoms: Regularly inspect strawberry plants for early symptoms of powdery mildew, especially during conditions favorable for disease development.