Help identifying orange blobs on little pine tree, 2 pictures

jxf011April 23, 2012

I have a little pine tree in a pot outside that has lots of little orange blobs on it. The pot has holes in the bottom, I haven't fertilized or treated it, and I've watered a few times recently. Is it fungus, bugs, harmless sap, or what? I really like this little tree and hope it will be ok. Thanks in advance, jxf011

little pine tree with orange blogs -

little pine tree with orange blogs, close up -

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ken_adrian Adrian MI cold Z5

pine tree???

how about a juniper..

and no.. it wont have pine cones .. it will have juniper cones/berries .. because it is a conifer ...

check out the link

ken

Here is a link that might be useful: link

    Bookmark   April 23, 2012 at 12:56PM
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calliope(6)

It is a type of rust. It won't harm your juniper, but it's a host for this organism and the resulting spores from it can cause fungal diseases on members of the rose family (apples, quince and hawthorn included)

    Bookmark   April 23, 2012 at 2:47PM
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esh_ga

Yes, cedar-apple-rust on a juniper. Doesn't mean that you did anything wrong.

    Bookmark   April 23, 2012 at 3:15PM
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ken_adrian Adrian MI cold Z5

yeah it does.. lol..

they grew a juniper..

if in fact it had been a pine.. there would be no problem ...

ken

    Bookmark   April 23, 2012 at 4:18PM
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jxf011

Thanks for all the feedback. Is this summary of the comments correct?
* it's a juniper
* it has rust, probably cedar-apple-rust
* I didn't do anything wrong, e.g. over water
* there's no specific course of action I should take
* the juniper will probably be fine
If those bullets are right, about how long will the orange blobs stay there and is this a yearly thing?
Thanks again, jxf011

    Bookmark   April 23, 2012 at 8:24PM
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ken_adrian Adrian MI cold Z5

yes.. it is endemic on juniper ...

and note the name.. APPLE rust .. so though it has no impact on the juniper.. it is causing problems on nearby apple.. which would probably include crabapple [and i wouldnt be surprised if problems on oother prunus] ... but you can research that part.. if i mis-spoke ... or others will correct me ...

if it were me ... i would be done with them.. as i have been with many juniper in my garden ...

and .. i would get.. wait for it.. a pine .. lol ... and play with those..

both the juniper and pine are very large.. fast growing trees ... so when i say play with them.. in pots, it is short term.. unless you have mother earth options ...

there are many mini conifers.. which can live in pots for a very long time ... but growing conifers in pots can be very tricky ..

good luck

ken

    Bookmark   April 24, 2012 at 7:52AM
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gardengal48

it is endemic on juniper

Only on certain kinds of juniper. See the attached link for resistant species - there are many!

Also the 'cedar' referred to in this and other info sheets on the subject apply only as the common name for Juniperus virginiana, eastern red cedar. It is NOT a cedar and true cedars (Cedrus species) are not subject to this disease.

    Bookmark   April 24, 2012 at 2:39PM
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gardengal48

Try this :-)

Here is a link that might be useful: cedar-apple rust - resistant species

    Bookmark   April 24, 2012 at 2:52PM
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