Strange "thing" on my crab apple leaves
+2
Tom
yamasuri
6 posters
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Re: Strange "thing" on my crab apple leaves
I think it's a gall, potentially caused by Cedar Apple Rust.
http://blog.planetnatural.com/pest-problem-solver/plant-disease/cedar-apple-rust/
http://blog.planetnatural.com/pest-problem-solver/plant-disease/cedar-apple-rust/
Tom- Member
Re: Strange "thing" on my crab apple leaves
Thank you so much Tom and Chris. It's clear enough. Can I use Bordo or has to be Bonide?
yamasuri- Member
Re: Strange "thing" on my crab apple leaves
Just remove and destroy the leaf or leaves.
A spraying with lime sulfur in late spring will help reduce the likelihood of infection. Keep the tree a long way away from junipers (but if they grow all around you like here, you just learn to live with it).
Cedar apple rust (and other rusts of members of the rose family) isn't a serious problem. Just destroy affected leaves.
A spraying with lime sulfur in late spring will help reduce the likelihood of infection. Keep the tree a long way away from junipers (but if they grow all around you like here, you just learn to live with it).
Cedar apple rust (and other rusts of members of the rose family) isn't a serious problem. Just destroy affected leaves.
JimLewis- Member
Re: Strange "thing" on my crab apple leaves
Thanks Jim. I just burn all affected leafs. Will give lime sulfur spray soon.
yamasuri- Member
Re: Strange "thing" on my crab apple leaves
I had this several years ago on a crab apple...it sure looks malignant!
John Quinn- Member
Strange thing on crabapple
Those things sticking out are spores. They will infect junipers. The year after next, the junipers will infect apples.
Lime sulphur will do nothing at this stage. In the winter, spray with lime sulphur or dormant oil. For next year, ask your extension agent for the spraying schedule.
Iris
Lime sulphur will do nothing at this stage. In the winter, spray with lime sulphur or dormant oil. For next year, ask your extension agent for the spraying schedule.
Iris
bonsaisr- Member
Re: Strange "thing" on my crab apple leaves
Thank you Iris. Such annoying thing this galls.
yamasuri- Member
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