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strange patches on leaves

Posted by tom_garden (My Page) on
Wed, Mar 19, 08 at 16:33

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: strange patches on leaves (46 k)

Follow-Up Postings:

RE: strange patches on leaves

  • Posted by jean001 z8aPortland, OR (My Page) on
    Tue, Mar 25, 08 at 22:53

Perhaps leafminers?

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

RE: strange patches on leaves

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.

RE: strange patches on leaves

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.

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