Tar Spot Disease Numerous Spots on Maple Leaves Concern Homeowners. a Common Cause Is Tar Spot Disease, a Cosmetic Problem That Typically Does Not Impact Tree Health. the Disease Is Caused by Several Fungi in the Genus Rhytisma and Infects Silver, Sugar, Red and Norway Maple as Well as Their Relative, Box Elder.
What Does It Mean When Maple Leaves Have Black Spots?
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★ Key Takeaways
Tar Spot Disease Numerous Spots on Maple Leaves Concern Homeowners. a Common Cause Is Tar Spot Disease, a Cosmetic Problem That Typically Does Not Impact Tree Health. the Disease Is Caused by Several Fungi in the Genus Rhytisma and Infects Silver, Sugar, Red and Norway Maple as Well as Their Relative, Box Elder.
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