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John Fulton

John Fulton
Former County Extension Director

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In The Backyard

Horticulture columns and tips done on a timely basis
Anthracnose on maple

Anthracnose and Apple Scab

Posted by John Fulton -

As predicted earlier in the season, fungi have really kicked in on shade trees and ornamentals. Anthracnose is easily seen on good quality maples, and apple scab is rapidly defoliating both crabapples and production apples not in a regular spray program.

Both diseases fall into the category of "preventable but not curable," but don't despair. Assuming the trees have enough stored energy, they will leaf out next year and begin all over. The disease may hit or not, depending on the weather conditions, but odds are at some point in the year you will see it again on susceptible varieties.

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