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Hello Marb67.
Sorry to hear about your ornamental cherry tree. Im a relative newcomer to fruit trees but 2 of my cherry trees, one am Old Black Heart and a May Duke.
They both had very similar looking sick leaves although they started looking really healthy. I discovered little tiny black slug like creatures about a 8 mm long with a large head, I looked them up and it was something called cherry and pear slugworm. Apparently they don't affect the overall health of the tree but looks terrible! My pear trees also had the same. I think they are sawfly larva. I might be wrong but also can be treated by dusting the tree with wood ash and the slugworms dry up then drop off. Hope that helps.
Sorry to hear about your ornamental cherry tree. Im a relative newcomer to fruit trees but 2 of my cherry trees, one am Old Black Heart and a May Duke.
They both had very similar looking sick leaves although they started looking really healthy. I discovered little tiny black slug like creatures about a 8 mm long with a large head, I looked them up and it was something called cherry and pear slugworm. Apparently they don't affect the overall health of the tree but looks terrible! My pear trees also had the same. I think they are sawfly larva. I might be wrong but also can be treated by dusting the tree with wood ash and the slugworms dry up then drop off. Hope that helps.
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