Help identifying Nectarine disease/pest

Hello to all. My name is Dean, and I’ve been enjoying reading on the Growing Fruit site, and this is my first post.

I have two Panamint Nectarines here in Escondido, Ca, one is two years in the ground, the other is a year older. Both trees gave us over 100 very delicious nectarines this year, starting the last days of July. I sprayed an “orchard” spray once in the spring, and pests were a non-issue. No worms, aphids, no sign of borers. A couple of plums in the same yard had some shothole but not much.

Now is leaf fall, and the difference between the two Panamint Nectarine trees is startling. The younger tree seems diseased, but I can’t be certain what the problem is. We had some October heat, and I have reduced watering but still made sure the soil wasn’t drying out too much. If anyone can tell me anything based on the picture, I would be grateful.


The tip dieback could be peach twig borer. The leaf issue could be salt burn or too much fertilizer. Or then it could just be late fall senescence issues. Leaves that look bad in fall often aren’t an issue. You’ll know next spring. If one tree looks worse than the other, then something serious may be going on.

Welcome to the forum Dean…!!

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Oriental fruit moth.

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Thank you for the welcome and replies regarding my nectarines. The two trees I have did so well this past summer. I sprayed one time after fruit had set with a general “orchard” insectacide, and breezed through without sign of anything amiss. Then again maybe I didn’t look close enough. The trees are nearly bare now, the younger one (the tree of concern) further along as far as that goes. Gonna study and come up with a plan. Borer really concerns me. Don’t know enough about oriental fruit moth.
Thanks again. I really enjoy this site.

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I’m here near Venice Beach California, and your second picture looks like oriental fruit moth.

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