strange patches on leaves

tom_gardenMarch 19, 2008

Hello I wondered if anybody knows what these patches are? I noticed them this morning. They are light green and some of them have small brown patches in the middle of the green patches. I can't be sure but I think they spread during the day.

Many thanks


Image link:

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jean001(z8aPortland, OR)

Perhaps leafminers?

If so, they are between the top and bottom surfaces of the leaves. Squish 'em!

    Bookmark   March 25, 2008 at 10:53PM
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stormflakes(zone 9)

Hmm, those don't really look like leaf miner trails to me. I haven't seen patches like that before. Perhaps this link will help you identify the problem.

    Bookmark   April 3, 2008 at 7:59AM
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jean001(z8aPortland, OR)

leafminers are of two general types -- serpentine (with a narrow winding trail) and blotch (a larger spot).

If the blotches in the photo are blotches from leafminer, the critters have removed the tissue between the top and bottom layers of the leaf. Thus, it will be easy to separate the leaf layers at that place.

Try that easy test, then get back to us.

    Bookmark   April 5, 2008 at 12:12AM
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