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disease question

Posted by altorama 5/6 MA (My Page) on
Tue, Feb 7, 12 at 11:53

I have a small conifer, here is a picture of it

Uploaded from the Photobucket iPhone App

It has some sort of disease, maybe rust? These are the best pictures I could get, where the problem is you can see how the trunk has thickened. It is almost like a red dust. Here are some pictures. Any idea of what it is, and how to treat it? I cannot remember what kind of conifer it is, it's about 2 years old. Thanks for any advice.

Uploaded from the Photobucket iPhone App

Uploaded from the Photobucket iPhone App


Follow-Up Postings:

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RE: disease question

It does look like a Gymnosporangium rust, most likely Hawthorn rust. Was the tree outside or inside? Usually they don't sporulate until later in spring in the north. Even down here you don't see the telia until mid March or so. At this point, nothing can be done for it except to prune out affected branches. The spores produced on this host cannot re-infect it, but infect the alternate host (in this case Crataegus spp.).


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RE: disease question

Thank you. The tree was outside, but we are moving so I dug up the plants I want to take with me and kept it in the porch for about a week, then the back hall, then a cool spot in the house.
I will prune off the affected branches, probably moving it into the house must have given the disease a jump start?
Thanks so much!
Alida


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RE: disease question

Unless it is something rare or of sentimental value, I would just replace it. It looks like an eastern redcedar (Juniperus virginiana). These are easy to find.

Even if you prune the disease out, it may still have other infections you can't see yet and it will be very ugly at that point.


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RE: disease question

i agree..

i would not take a diseased plant to a new garden.. and hope i did not effect the whole new garden ..

ken


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RE: disease question

Ok, I can just get rid of it. Whatever else may have been infected can be replaced,
Thanks!


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