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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. Control for the primary phase of the disease indicated. If disease is controlled early, third through harvest covers will not be necessary. b. Dormant copper applications. c. 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 is recommended to maintain control and reduce overwintering inoculum.
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