[GoDawgs]

Originally Posted by PhilaGardener

There also is a new introduced pest on onions/garlic that is spreading quickly, the allium leafminer. First discovered in PA in 2016, it can cause 100% failure of a crop at the field level.


https://extension.psu.edu/allium-lea...merge-in-april
https://ento.psu.edu/extension/veget...lium-leafminer

Thank you for posting this. I sure hope they haven't gotten down here in Georgia. About a month ago I noticed some onions with wavy leaves. This is only my second time growing onions but I never saw this last year. After reading your links I just went down to the garden to take pics and pull one of the onions. Looks like what PSU has in their pics:



And this kind of looks like ovipositor lines:




I pulled and dissected the onion. No problems around the basal plate. Made a longitudinal cut on the wavy leaves. Nothing but a fat armyworm in one of them. Also made the same cut in the 5" section of stem just above the bulb and unwrapped each layer. No pupae or larvae. Whew!

Still, I'm going to forward these pics to the extension agent. If he says there aren't any allium leafminers here (yet), great. But I still want to know what's going on with these several onions.

Again, thanks for the heads up!