What is this disease/pest on my orange tree?

729zoomJanuary 23, 2013

I am not sure what is ailing this old tree but hope to save it, as it used to bear the sweetest, seedless oranges.

Attached are pictures of the leaves. I would like to know if anyone can identify what this is and suggest a treatment. I live in Los Angeles, County.

Thanks!

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keithdphan

wormmy S damage is CLM (citrus leafminer). but they are in dormant right now.

    Bookmark   January 23, 2013 at 2:47AM
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jean001a(Portland OR 7b)

The cottony stuff is likely young woolly whiteflies.

See http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7401.html

Here is a link that might be useful: whiteflies in CA

    Bookmark   January 23, 2013 at 11:34AM
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lgteacher(SCal)

Whiteflies and leafminers. Whiteflies are on the underisde of the leaves, so sometimes you don't notice them until they get bad. They won't kill the tree, but they do cause damage to the leaves.

Here is a link that might be useful: Citrus pests

    Bookmark   January 23, 2013 at 1:18PM
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729zoom

Thank you to everyone who answered my questions. This is such a wonderful forum. I will post back a follow up on how the tree is doing. In the meantime, wanted to say how much I appreciated the help.

    Bookmark   February 11, 2013 at 4:17PM
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