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As a Federal Government employee, I cannot make specific recommendations concerning how to control these rot pathogens. As frustrating as this may be for both myself and the grower or persons interested in control, I have linked a few websites authored by my University collaborators that can make specific recommendations. I hope you find this information helpful.
General rot control guidelines based on my research and the scientific literature:
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1) Use of fungicides for apple as specified by the fungicide label
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2) Removal of dead wood, leaves, and infected fruit in the trees, on the ground, and the storage environment
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3) Store fruit at optimal temperature according to cultivar which ranges from 38.8 to 39.2F
Helpful Websites
Penn State Fruit Research and Extension Center
Washington Tree Fruit Research
Postharvest Information Network
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