Wettable sulphur before flip? WPM :/

Hi guys!
So I have a small, organic, medical grow indoors in soil (KIS Organic) and picked up some clones about 2 mos ago....that looked great from the grower...and popped up w WPM a few hours after getting home and landing under their HO flourescent light :/

I am not a newbie to growing - but am a newbie to indoor cultivation. I never had more than a spot on 2-3 leaves before taking action, so, never an out of hand problem. But certainly a problem! The Bragg cider vinegar worked for 2-5 days. Organic neem w a drop of dish soap worked 3-7 days. Moved these girls to a MH (1000w), added some UV B light and - keeping up w the neem, it worked about 10-14 days before I'd find an affected leaf. Air circulation stays good, and the room has a limited (filtered) outdoor draw - 78-80* and ~50-60% Rh day and night. Temps are pretty stable but Rh does fluctuate a bit with big swings outside...

An old timey buddy told me to mist w alkaline water- and my well is about 8.1 out of the tap. Misting once a day, turning daily (for more even exposure to the uv b light, which is on the back wall above the canopy) - I have seen zero WPM for about 3 weeks with no other treatments (just the alkaline water).

I wanted these ladies to be big- I have room for trees and can legally have just a few mature plants - so why have just a few 1/2-1# plants when I flip into my 1000w hps flower room??

I am so so not wanting to see the WPM pop up in the flower room! My local hydro shop buddy suggested an organic wettable sulphur as a drench since I'm still in veg. I tested on a couple of younger plants and branches - and have had a few funny tips but nothing overly concerning.

I just don't like using anything I don't have to...
If these were your ladies, and you were about to move them and flip- would you hose them down w the sulphur? Keep up w the water, or, something else?

Just so you know we are doing pretty well - and so the nice folks that have been liking my new to RIU posts know I'm not totally full of sh*t lmao
all in 10g pots : ATF



Brian Berry Cough


Dream Beaver


The trio in back - with a few other youngsters in front


Thanks in advance for your thoughts

Because...if you use sulphur as a foliar spray- how do you know if it comes back on the older growth?
I know this lady is WPM free- but the sulphur looks a whole lot like the plague lol

Hi, don't mean to jack your thread, but I posted a question about hydrogen peroxide at near 8% concentration being used in hospitals via fogging machines - this stuff kills most bacteria, viruses and fungal pathogens on contact. I was thinking about using it to disinfect your grow space between grows, but then thinking about it, I wonder why you couldn't just go ahead and apply it with plants in a room in order to combat things like powdery mildew?

At 7.8-8% concentration, I don't know if the plants could stand the treatment, but since it's used, albeit at somewhat lower concentrations to combat root rot, maybe the entire plant wouldn't suffer too badly from a relatively short exposure to a vapor at that concentration?

Sapphyre said:

Because...if you use sulphur as a foliar spray- how do you know if it comes back on the older growth?
I know this lady is WPM free- but the sulphur looks a whole lot like the plague lol

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That does seem to be the weakness of foliar sprays, you have to get all surfaces, on top of and underneath leaves, in order to kill everything, or several applications over a time to get whatever survived. Difficult, especially if you're dealing with more than just a few plants, and can do lots of damage if you're well into flowering. That's why I like the idea of a fogger and h2o2 as a potential workaround. But good luck with that WPM, hate dat shite ;?)

I like the theory....but ... I do have a small veg area that would be prefect for a test- when I have fewer plants in there than I do right now!

Update, it's been about 3 weeks and the WPM is back . Everyone is getting the sulphur. Hopefully I don't hate myself for this, but, I need to move these big plants over to the flower room and hey, every day is a learning day in the garden, right?