coronavirus
Powdery Mildew in Apple Tree
How to identify and treat powdery mildew in Apple Tree.
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Apple Tree care requirements
water
Regularly when young. Water deeply in drought.
soil
Well-draining, fertile soil. pH 6.0–7.0.
light
Full sun — 8+ hours for fruiting.
symptoms
Symptoms to look for in Apple Tree
White, powdery coating on leaves, shoots, and blossoms, often causing distorted, stunted new growth and reduced fruit set.
help
Common causes in Apple Tree
Powdery mildew overwinters in infected buds and thrives in warm, dry days with humid nights, spreading through the canopy as new shoots emerge in spring.
healing
How to treat powdery mildew in Apple Tree
Prune out and destroy visibly infected shoots, and apply a fungicide labelled for apple powdery mildew during the growing season if the infection is spreading.
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Preventing powdery mildew in Apple Tree
Prune for good airflow through the canopy, avoid excessive nitrogen feeding, and choose mildew-resistant varieties where possible.