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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

Hackberry Tree Leaf Problems

Posted by John Fulton -

There is a disease of hackberry leaves that appears as blocky yellow spots. The spots often have green tissue surrounding them (but not always), so the disease has earned the name of island chlorosis. In addition to causing the yellowing symptoms, the chlorosis can cause some leaf drop. The disease is mainly a curiosity on established hackberry trees, and causes little damage.

The other item of note on hackberries is the presence of the hackberry leaf gall, which appears as a "thimble shaped" leaf swelling. See the general gall information below.



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