A new nectarine tree (planted bare root this spring) has developed irregular shaped, raised, red blotches on the leaves. They look like big blisters, but they aren't filled. The underside of the leaf has raised up, so the bump is hollow. The lump is also crinkly.
The raised areas are about 1/4 in diameter.
It looks like a chemical burn, but there has been absolutely no chemicals of any sort used anywhere near this tree.
Does that sound familiar to anyone? I'd be happy to look it up, but without a hint of the name, it's hard to locate a tree problem on the internet.
I haven't seen any bugs, although a cherry tree has shown up with a few aphids this week. I can't see any aphids on this nectarine with the red blotches.
Thanks for any help.
Nectarines are just as prone as peaches to peach leaf curl. Only in a very wet spring in your area will it be a problem. Pick off all the blistered leaves and burn them. The tree will put out new leaves that should not have the problem with drier weather. John S; If compost tea works west of the cascades, when do you use it? I have tried just about every thing else.
I use compost tea when the leaves are on the tree. It's better on a cloudy day or when it is slightly drizzling. Normally I just use it twice a year, when my garden has been organic for awhile. It's best not in direct sunlight. Portland Nursery sells it. I think Naomi's in SE PDX sells it too. Only buy it if they are sending air through it when they are making it and then use it within about an hour.
John S
PDX OR
Compost tea is both a prevention and a cure. I do the whole garden twice a year, but I'm especially careful on plants that are more susceptible to particular diseases. Compost tea fills the plant with aerobic microbes, which help the plant and are in fact stronger than the anaerobic, which tend to be disease carrying microbes. It also fills all of the soil food web in your soil and whole garden, which both destroys the "bad" microbes, and increases the health and ability of the plants to defend themselves.
John S
PDX OR
Check out yahoo groups forum on compost tea
http://tech.groups.yahoo.com/g.....a/messages
Yup. Photos look like what I am seeing on my tree.
I'm slightly amused that the only tree affected is a variety that is supposed to be peach leaf curl resistant.
I can only assume that the tree arrived from the nursery already infected, since there has never been any peach leaf curl on any of my trees. If I get right after it, maybe I can keep it from spreading.
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