etherati
Sprout
Hey, new here but desperately needing a positive ID on the problem cropping up in my tomato seedlings. I've never grown them from seed before so I don't know what to look for. No disease profiles online seem to match it exactly - I thought maybe bacterial spot/canker, but it's not quite right and it's so dry here that it didn't make much sense anyway. Maybe nutrient deficiency? Some sort of fungus? I just need to figure out if it's safe to put these in the garden come last frost time, without contaminating the soil with something nasty.
So: They're about 5 weeks old, mixed varieties (supersweet 100 cherry, roma, early girl, big boy, brandywine, and a mix of other heirlooms from burpee). The problem in the pictures is primarily on the older leaves, but younger leaves eventually get it too. Nothing wrong on the stems, plants seem strong and lively. Seed leaves have been yellowing and falling off on their own. Currently fertilizing with Age Old Grow (20-10-10), which is organic and not supposed to be able to burn plants, but for a while they were just in seed starter with no added nutrients. Drainage is good, and they're under a sun lamp so they should be getting enough light? Though it's only 100w, so who knows.
Anyway, pics:
...okay, I guess I can't post urls to the pics. But they are sort of pale green/yellow spots on the tops of the leaves with a tiny bit of browning at the very tips, and the undersides of the leaves reflect the spots as paler patches against a purple background. Veins don't seem involved, and there are no problems with the stems.
Any ideas?
So: They're about 5 weeks old, mixed varieties (supersweet 100 cherry, roma, early girl, big boy, brandywine, and a mix of other heirlooms from burpee). The problem in the pictures is primarily on the older leaves, but younger leaves eventually get it too. Nothing wrong on the stems, plants seem strong and lively. Seed leaves have been yellowing and falling off on their own. Currently fertilizing with Age Old Grow (20-10-10), which is organic and not supposed to be able to burn plants, but for a while they were just in seed starter with no added nutrients. Drainage is good, and they're under a sun lamp so they should be getting enough light? Though it's only 100w, so who knows.
Anyway, pics:
...okay, I guess I can't post urls to the pics. But they are sort of pale green/yellow spots on the tops of the leaves with a tiny bit of browning at the very tips, and the undersides of the leaves reflect the spots as paler patches against a purple background. Veins don't seem involved, and there are no problems with the stems.
Any ideas?
