Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Prunus > Irregular growths on leaves
Prunus > Leaves > Irregular growths on leaves
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Spindle gall
Eriophyes emarginatae
- Green or red finger-like structures on leaf surface
- Caused by eriophyid mites which are microscopic
- First formed in spring shortly after leaves expand
- More information on Spindle gall
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Leaf curl
Taphrina wiesneri
- Leaves have thick puckered to curled spots that are yellow to reddish brown
- Diseased leaves droop, turn brown and die as the disease progresses
- Witches brooms, clusters of small twigs arising from a swollen area of the branch, form on some infected trees
- Common on wild cherry trees