We have some sort of spiney orange (fungus?) on our Juneberries. For the last few years the bush hasn't produced many berries. This year there are lots of berries but all of the larger ones are covered with orange powdery spines. The orange colored powder comes off when the berries are disturbed leaving behind whitish spinelike tubes. The leaves also have small brown splotches all around the outer part of them. I don't know if this is related or not to the spiney fruit.
Can anyone tell me what this condition is called and what if anything I can do to save the bush? I would also like to know if it will spread to other types of fruit and if so should I remove the bush? Thanks
Spiney orange fungus on Juneberry?
I don't know what this is, but my Juneberries have it, too (I live in Michigan, too). I have blueberry bushes near the juneberries and they have so far been unaffected (3 years). I am so frustrated with this orange stuff! I'd love to know what to do!
I don't know what that is, but those "spines" look like insect eggs to me.
I hope someone here gives you an answer, because I'm curious.
I get this too. It is Juniper Rust (Gymnosporangium nidusavis) Here is info from Cornell Coop. Extension:
This fungal pathogen requires both juniper and Juneberry hosts to complete its life cycle. Infections from spores produced on galls in juniper cause yellow-orange colored spots to form on the upper surface of leaves and shoots and fruit to swell and become disfigured. On the underside of leaves thorn-like aecia are produced. Spores produced from the aecia re-infect the juniper where the fungus overwinters.
Management:
Avoid planting near juniper. Remove galls from nearby juniper and sanitize the planting area by removing dead leaves, twigs, and fruit.
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