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Leaf symptoms on Avocado

Posted by econ0003 10a CA / 8b CA (My Page) on
Fri, Aug 23, 13 at 0:41

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.


Follow-Up Postings:

RE: Leaf symptoms on Avocado

that is persea mites (very common). It can reduce vigor of the tree...but not usually critical. Spray Agri-Mek or buy "beneficial" predators (which worked well for me). Google it...a good site from UC is available.

RE: Leaf symptoms on Avocado

Thanks. I'll give the "beneficial" predators a try.

RE: Leaf symptoms on Avocado

Info at

Here is a link that might be useful: UC IPM on persea mite

RE: Leaf symptoms on Avocado -

More from UC IPM, but this for commercial growers. Even so, provides much more in the way of details

Here is a link that might be useful: persea mite -- commercial blurb

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