Leaf symptoms on Avocado

econ0003(10a CA / 8b CA)August 23, 2013

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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fireduck(10a)

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.

    Bookmark   August 23, 2013 at 9:44AM
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econ0003(10a CA / 8b CA)

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

    Bookmark   August 23, 2013 at 10:40PM
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jean001a(Portland OR 7b)
    Bookmark   August 23, 2013 at 10:44PM
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jean001a(Portland OR 7b)

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

http://www.ipm.ucdavis.edu/PMG/r8400211.html

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

    Bookmark   August 23, 2013 at 10:47PM
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