I use a sulfur burner for preventative and i try hard to not let pm get a foothold in the first place by having good control of my room,i use a GOOD dehumidifier(santa fe) and humidifier to keep humidity where i want it when i want it.Good airflow helps also for me anyways and i bleach and clean my room between every run also.I have friends that get PM alot and i steer clear of their rooms,dont even go in,lol,and they dont come in mine either(watch animals too!).I do beleive you can bring it into your room either on yourself or from outside air so if your using air exchange have some kind of hepa filtration material you bring air in through,Some strains are more prone to it than others also.Prevention is key for me and the dark cycle seems to be where it gets a foothold IMO anyways.I am FAR from the guy to ask though,there are much better sources of info here at the farm.
I am not sure it matters much when really so I don't have an exact schedule. It is just something that for sure happens once in veg and a couple times in flower. I haven't had PM in my rooting plants in years though. I do remember back in the day I used to get PM on my cuttings in the domes a lot.
I use the Hobby Unit
No doubt! Hey @HarryM a great place to stop as soon as you get to the Farm here is the "Introduce Yourself" forum, its a great place to -er- introduce yourself. Unless of course you only made an account here to plug your questionable plant scanner to a bunch of pros, in which case good luck;)
