Cedar-apple rust is a fungus that emerges in the early Spring season. This fungus must have both the cedar and apple tree within range for the fungus to develop. Fungal spores are carried by the wind, and can spread the disease for many miles. In this case, every cedar tree in the customer’s landscape has been effected. I took a walk deep into the woods behind the property, and every cedar I checked also was covered with rust. Cedar-apple rust is a natural occurance, and rarely causes stress or decline to the “natural” cedars in the landscape. Ornamental cedars, planted by the homeowner, can be damaged if rust is allowed to take hold. Fungicides can be applied to the trees to prevent contamination. Trying to prevent cedar-apple rust on your natural cedars will be an uphill battle. Especially if you have had outbreaks in previous seasons.
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the top picture is the one mine looks like the only thing is we have no apple trees anywwhere ….it looks also like it is suffocating parts of the jumipers will this kill the plant we have never had this before and the only difference is we have new landcapers with different mulch…..
Hardwood mulch is nothing more than the grindings from a tree that was removed from someone else’s landscape. Often times these trees were full of various diseases. It is very possible that these diseases are then deposited into your landscape. Cedar-Apple rust is mostly an airborne fungus, but “never say never” when it comes to nature. I guess it is possible that it could be carried in the mulch. I would not go out and remove it, because we can’t know for sure. Cedar-Apple rust is usually not terminal with natural cedars. It is a very common disease. If your plants are of manageable size, the best practice would be to prune out the infected areas and throw them away. Next year, you could start a series of fungicide treatments, about every 7 to 10 days, to hopefully minimize activity. Fungicide treatments would be a waste of time if you were trying to treat large cedar trees, and especially if you have several in your landscape. I have used a product called “Eagle”. It can be purchased at any John Deere Landscapes location. Hope this helps.
my bougainvillea looks similar to the top picture what can I do.
I could not bring up the pics of your plants. Your plants could not be stressed by cedar-apple rust. They usually get leaf spot issues, etc. Maybe you can try to send me a few photos via my email address- mark@shrubdoctor.com
Thanks
MT