I do shut it off. I have it on a short interval timer with a photo sensor. I haven't had to turn it on yet as there no real reason for me to right now. But when the odor arrives, then yes. I like to set the timer for 15min on/ 1hr off. Too much ozone will cause tiny copper dots on the plant leaves, very similar look to a calcium deficiency.
that was my concern was the ozone. cause i was gonna get an ozone generator off amazon, and run it for 10 min with the exhaust fan off before lights out, and then have it shut off and resume the fan and stuff after, as i know ozone can burn or even kill plants.
I have some powder mildew infections on a couple of plants. on my 9lb hammer, i think i must have brought it in from my vegetable garden this year with a draft of air or on my clothes or something because the PM was HORRENDOUS outside this year.
But my friend received some plants that had PM (no signs showing at the time) and it ended up taking over his whole garden because he chose to not do anything about it. I got a couple cuts of his confidential cheese before the PM even showed face in his room, and I never saw the PM on that strain in my garden until right before i put it into flower; it reared its little conidiophores on just a couple leaves. he also had a tray of clones that were solid genetics: GG#4, querkle, and a really killer sour D that's been around for about 10-12 years. he was gonna toss them and I'm like no, i'll see what i can do and keep them under quarantine. the clones had a little PM showing, but nothing that couldn't be washed off and treated so i took them in. they are looking great!!!! but i know they still have the systemic fungi in there
So i've been very effectively keeping the mildew breakouts from happening. once i see a little area developing, even if just on one leaf, i will wipe it down with a damp paper towel so i dont spread spores everywhere and then pull the plants outta the room and spray them down. what has worked REALLY well for me is the neem oil/bicarbonate mixture. it stops a PM breakout dead in its tracks, well very small breakouts lol. it was lasting the better portion of a week until i sprayed an aloe foliar and had PM breakout within 36 hrs. i think the aloe foliar washed away the neem/bicarbonate that was working. haven't had to test on major breakouts cause i've been on top of it thankfully. if the leaves were too far infested i'd just remove them anyway but i don't like to do that because, obviously, that's how the plant feeds itself lol.
what are your experiences with battling PM in a greenhouse/indoor garden....?
