I planted a small 5 gal Hass avocado from HD about a year ago. Since then it has grown about 4x or 5x its size. It has been pushing new growth continuously all spring and summer. In general it seems like a pretty healthy tree. This spring the older mature leaves started developing spots. As the new leaves mature they all seem to get these spots. The only thing that I can find online that looks similar is mite damage. Please help me identify what is causing this and how to treat it.

Thanks,
Tom

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