This disease appeared shortly after my seedling began early signs of veg stage. In fact, the two earliest sets of leaves are not in the picture because they died completely. I did an application of chlorothalonil that has proved ineffective. Anyone know what this is/how I get rid of it. It's also affecting my morning glory plant in the same box, but that one isn't bothered by it at all, the spots appear very slowly and don't kill leaves.
This is NO disease but sloppy gardening practices, those early leaves are the cotyledons ..and they like you baby teeth fall out in time, what we the membership are looking at is a canna plant, toxic in nutes and applied way too early and in volume, This Chlorothalonil, was applied to the weakened plant to kill bugs and spiders, and with enough will kill you too, use Neem Oil as it gives great protection against bugs spiders and molds, is organic, but not within 2 weeks of harvest, as Neem Oil is an acquired taste to my blog:http://forum.grasscity.com/blog/1093/entry-9709-neem-oil/ You need to flush these excess nutes out of that rootzone To my blog: http://forum.grasscity.com/blog/1093/entry-9829-flush-baby-flush/ No nutes until you see an improvement est 2-3 weeks
It's only on 30 ppm of nutes, and the symptoms didn't appear for a whole week after application. Also during the first week it was consuming about 2 ppm per day, but that dropped off to 1 ppm a day when the spots appeared.