These projections stick out like rubbery shelves but do not dangle like the horns on Cedar-apple rust galls. On apple trees, leaf spots are bright red with a pale cream to white center. Infection on ...

Apple trees with orange spots on the leaves are suffering from a fungal disease called cedar-apple rust that affects a range of trees. The primary sign of cedar-apple rust is the orange or reddish ...

frogeye leaf spot; (e) grey spot; (f) mosaic; (g) powdery mildew; (h) rust; and (i) scab. [1] Hughes, David, and Marcel Salathé. "An open access repository of images on plant health to enable the ...

This rust attacks the leaves and may also attack the fruit and twigs ... Cedar-apple rust is generally prevalent only in the eastern United States. Keep hawthorns away from cedars and apple trees.

Given a photo of an apple leaf, can you accurately assess its health? This competition will challenge you to distinguish between leaves which are healthy, those which are infected with apple rust, ...