Knowledgebase
Service Berry Tree health #878383
Asked July 23, 2024, 9:47 AM EDT
Franklin County Ohio
Expert Response
Serviceberries are prone to fire blight (which this doesn't appear to be from the pictures) and rusts, which are fungal infections. It is also possible that the berries didn't form because it bloomed during a very hot or windy spell.
I agree that the lesions on the trunk look like fungus. While fungus treatment is usually not too effective after the fact, proper use of a fungicide on new growth may be indicated. Generally, focusing on keeping the tree as healthy as possible with attention to watering, soil type, sun exposure, etc. Serviceberries should be able to handle full sun, but high soil pH (if present) could be a problem. How is the drainage at the site? And hopefully a silly question--was this tree properly planted? Not left in a pot, burlap bag, etc? This has been known to happen, and once the roots get too restricted the tree dies.
Samples of the leaves, twigs, etc could be sent to the C. Wayne Ellett Plant and Pest Diagnostic Laboratory at The Ohio State University for definitive diagnosis.
https://ppdc.osu.edu/
I cannot recommend a specific anti-fungal treatment, but if you have further information about any of the questions I brought up please let me know. I may be able to come up with a better recommendation.
The links below are research-supported information sheets about serviceberries in general.
https://portal.ct.gov/caes/plant-pest-handbook/pphs/shadbush-serviceberry-amelanchier
https://hgic.clemson.edu/factsheet/serviceberry/
I asked about the planting because there have been reports of even professionally planted trees (even tree services hire new help) being planted with their roots still constrained. After a while, this of course will kill the tree. If that did happen to be the cause of your tree's stress, you might be able to dig down in one spot near the trunk and go out a foot or so to be sure you don't run into a barrier.
A soil test is not a bad idea. Serviceberries are fairly tolerant of various conditions, but do prefer well drained soil and a lower pH (5.5-7) than some plants. While they tolerate higher pH, they are not happy there and therefore more susceptible to disease.
video about rust and lacebugs on serviceberry
https://extension.umd.edu/resource/rust-diseases-trees/extension.umd.edu/resource/rust-diseases-
response to similar question about serviceberry rust with linkshttps://ask2.extension.org/kb/faq.php?id=459813
The links below describe the ideal growing conditions for serviceberries and have pictures of some of the common conditions (including the juniper bloom rust, an apple-cedar rust that affects serviceberries).
https://extension.umn.edu/trees-and-shrubs/serviceberry
https://extension.usu.edu/yardandgarden/research/serviceberry-in-the-garden
I hope a little attention to pH and drainage, along with a change in weather, will help your tree thrive. It will likely look better next year, especially if we have drier conditions.