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Round nodules on willow tree branches
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Date Posted: Fri, Aug 06 - 8:51 pm
- My neighbor's willow oak dropped some branches in a recent storm and we noticed many small round nodules clusters on the branches. I have pictures and can up load if required. Neither of us have ever seen anything like this before. The tree is probably over 100 years old and is in the Museum District. Is this a disease or a parasite?
- Without actually seeing a picture of the infected branch, I believe the most likely issue is related to scale insects on the tree. They will form these nodules and feed on the nutrients in the tree branch tissues. If this is the case, the owner should determine how widespread the issue is throughout the tree. If infection is only in a few areas, or on lower branches, I would recommend cutting out those branch sections, bagging the infected material, and discard. If the infection is visibly more widespread, a safe, organic insecticidal solution spray would be recommended. Good luck, and feel free to reach out with any further questions.