Magnolia scale - Ask Extension
I have a mature magnolia tree approx. 30ft tall and 40ft wide. I have a magnolia scale infestation and am currently pruning the tree back to 15 ft x 2...
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Magnolia scale #878910
Asked July 26, 2024, 1:40 PM EDT
I have a mature magnolia tree approx. 30ft tall and 40ft wide. I have a magnolia scale infestation and am currently pruning the tree back to 15 ft x 20 ft . This should make the tree more manageable for spraying with an insecticide. What type of insecticide should I use and do you have any further recommendations? Thank you in advance for your help.
Jefferson County Ohio
Expert Response
Yup, you are correct, I believe your magnolia has a scale infection.
I found some very good articles on how to treat scale, as well as a treatment plan. I hope these help!
https://mortonarb.org/plant-and-protect/tree-plant-care/plant-care-resources/magnolia-scale-neolecanium-cornuparvum/
and
Good luck with the treatment plan and I know it is tough to see a beautiful tree with a disease!
If you need any more information, please don't hesitate to use Ask a Master Gardener!
Leslie
EMG
I found some very good articles on how to treat scale, as well as a treatment plan. I hope these help!
https://mortonarb.org/plant-and-protect/tree-plant-care/plant-care-resources/magnolia-scale-neolecanium-cornuparvum/
and
https://entomology.ca.uky.edu/ef431
both of the articles should help.Good luck with the treatment plan and I know it is tough to see a beautiful tree with a disease!
If you need any more information, please don't hesitate to use Ask a Master Gardener!
Leslie
EMG
