GDub51
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My seeds sprouted quickly on the heat mat then most died in their soil cups. Looks like damping off. Have to start over. I read about NOT using my propagator for seedlings as the damp environment is too liable to introduce disease. OK, the 2 remaining seedlings are out by themselves getting 600 lumens of artificial light and a half hour a day out in the sun, a little more each day. Now to deal with the disease I can use the microwave to sterilize enough soil for new seedlings, but what about all the 12-gallon tall pots?? No disease has shown up in my soil before and I re-charge it every year with an ever-increasing amount of expensive additives. Now having just spent the money and work to recharge all that soil what do I do to ensure it is not also infected with bad bacteria? I've read that hydrogen peroxide washing will sterilize the soil somewhat but then it will kill all the good bacteria and mycorrhizae that are in it. After a few days in the sun with the H202 mix and covered with plastic wrap, I figure then drying out the soil some before re-introducing mycorrhizae. Anyone else with a similar problem?