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- Wed May 07, 2014 10:41 am
- Forum: Fruit Trees and Orchard Maintenance
- Topic: What's the problem with this tree?
- Replies: 4
- Views: 5716
This looks to be downy mildew. It attacks the young leaves and they respond by trying to limit the spread of the disease by dying back (the black necrosis you see). The dirty grey surface to the leaves are the fungal hyphae growing across the surface. Damp, warm conditions cause this early outbreak....