Pelham road stem miner on Baccharis halimifolia D1922 2019 01 - Marmara

Moved

Moved from Unidentified Leaf Mines.

This one is somehow not totally convincing, but I don't know what else it could be. Hopefully you'll find better examples eventually.

… Charley Eiseman, 25 October, 2019 - 10:21am

I wasn't completely convinced

I wasn't completely convinced either. I did find other specimens on the same plant, but I've never seen it anywhere else. Could it just be natural growth patterns on the stem, and perhaps it isn't caused by an insect at all? I just wasn't sure if Baccharis did that. I could send the other two I have...not sure they would be any more convincing, but I'll check them over again and see...

… Tracy S. Feldman, 25 October, 2019 - 9:58pm

Not sure

The way these lines go diagonally in some places rather than ~parallel with the stem is pretty suspicious, but I think we won't know for sure until you can find a fresh example.

… Charley Eiseman, 25 October, 2019 - 10:08pm

Do you wish to see a specimen

Do you wish to see a specimen? I am still unsure if these are mines, but they are consistent with some of the patterns made by other stem miners I have seen.

… Tracy S. Feldman, 13 October, 2019 - 10:16am