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Please refer to product labels and the Penn State Extension Tree Fruit Production Guidefor details on chemical use at each timing.
++ = ideal timing of material for control; + = presence of pest and possible control; -- = control generally not needed; NA = not applicable
a. Dormant copper applications.b. For cherry leaf spot control begin applications at bloom when bract leaves have emerged and continue applications at 7- to 14-day intervals. A postharvest application may be made to maintain control and reduce overwintering inoculum.
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