Knowledgebase

Odd growth on leaves #876615

Asked July 10, 2024, 9:24 AM EDT

All the leaves on our mature tree have developed these nodules. They are solid. We only noticed them about 10 days ago. I wrote you a week ago but haven’t gotten a response. We live behind Angostua Reservoir near the dam.

Fall River County South Dakota

Expert Response

Hi Cathryn,

Do you know what kind of tree this is?  If it's a hackberry, it could be hackberry nipple gall.  Our Extension forestry specialist, Dr. John Ball, wrote a Tree Pest Alert article about hackberry nipple gall that I have attached. If you have further questions, you can contact him directly at <personal data hidden> (cell).

Sincerely,

Robin

An Ask Extension Expert Replied July 10, 2024, 10:38 AM EDT

This solved our mystery. Thank you. Cathryn

On Jul 10, 2024, at 8:38 AM, Ask Extension <<personal data hidden>> wrote:


The Question Asker Replied July 10, 2024, 10:46 PM EDT

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