My canteloupe seedlings have been off to an impressive start, growing quickly ever since planting them just over a month ago, but I've recently noticed some issues with the leaves per below pictures which I need help identifying.
I've had no damping off or any signs of overwatering up to this point, and I don't think these look like typical overwatering - maybe a fungal/bacterial disease? I'm wondering if there's something I'm doing that's causing stress and allowing a bacterial/fungal disease to take over - as in possibly too much water, over-fertilizing (diluted fish/seaweed liquid fertilizer). Does this looks like alternaria leaf spot and could that even occur indoors?
I've been watering by soaking plants in watering trays and have had a bad habit of occasionally letting plants sit in the tray soaking for a bit too long, but again I don't really think this looks like overwatering? I replace the water with each watering so the trays have fresh water every time, and I wash the trays with soap about once a week - hopefully this watering method isn't an opportunity for bacteria/fungus?
Edited to include a picture of the underside of a leaf.
I've had no damping off or any signs of overwatering up to this point, and I don't think these look like typical overwatering - maybe a fungal/bacterial disease? I'm wondering if there's something I'm doing that's causing stress and allowing a bacterial/fungal disease to take over - as in possibly too much water, over-fertilizing (diluted fish/seaweed liquid fertilizer). Does this looks like alternaria leaf spot and could that even occur indoors?
I've been watering by soaking plants in watering trays and have had a bad habit of occasionally letting plants sit in the tray soaking for a bit too long, but again I don't really think this looks like overwatering? I replace the water with each watering so the trays have fresh water every time, and I wash the trays with soap about once a week - hopefully this watering method isn't an opportunity for bacteria/fungus?
Edited to include a picture of the underside of a leaf.
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