Some fungi cause leaf spots but are controlled by Anthracnose sprays. When the leaves are almost fully grown, light brown areas appear along the veins. Later the infected leaves fall off and the trees may be nearly completely defoliated. The trees send out a second crop of leaves but repeated attacks can lower tree vigor. Use a properly labeled fungicide at bud break, with additional sprays at 10 day intervals as long as the average temperature remains below 55 degrees.
Fertilization helps trees withstand repeated defoliation.
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