What causes this

This is a multi variety fruit apple tree. It is on all the varieties


That’s normal if it’s just the oldest leaves. At this time of year, the oldest leaves will senesce and fall off. It’s even more pronounced on peach than apple.

If it’s more than just the oldest leaves then it might be something serious.


@fruitnut , I was wondering why I keep seeing yellow leaves on peaches. I see ones in more shade getting dropped as well.

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Peaches grow a lot of leaves. Older ones can dry up and fall off particularly in a drought. Leaves can also shade out. If it’s old or lower leaves and not more than 10%, it’s usually just normal.