Hey everybody thanks for your help, I finally have my humidity under control
. I now have a new issue lol. A few weeks ago I found powdery mildew on my diamond og. I quickly removed and treated with diluted milk.took care of the problem... Until this morning. I JUST got my humidity under control like last night. With humidity stable at 35% day and less than 50% at night... Will the PM go away?
Hey Kitty, glad to hear you got your humidity under control. PM is another pain in the ass, imo it's not CAUSED by high humidity, but will thrive in it. The source is likely outdoors in your area, my area is covered in it and it's been quite a fight to keep it out of my indoor grows. If you have any outside air making it's way into your grow area, filter it well or you'll continue to get it.
Some observations on PM from monitoring:
I traced my source to outdoors, eventually cut off outside air from coming into my room
High humidity does not help for sure so hopefully you can keep it in check
Some strains, from my observations seem to like it more but there are strains that are more resistant to it. Most sats or sat-dom strains I've run seem to have an inherent ability to fight it. One particular strain I ran (now culled) was a magnet for it, Platinum Bubba Kush. I ran what I had left outdoor when I realized it was so bad indoor, had to spray it down weekly to keep it at bay.
My area has PM on many bushes, those in the lilac family seem the worst, some have almost white leaves it's so bad
I've tried and successfully kept it out of my indoor grows by spraying the plants every 7-10 days. Any more than 10 days and if they had it, it will show up again, it doesn't go away, it's like a cancer once they get it. If you let it go, it will spread quickly and out of control to the point where you may as well cull the plants as they won't recover. Knowing it's in the air, I now spray my indoor plants at 7-10 intervals to prevent it and it's been working well with no issues since I first got it. Last couple of rounds I've sprayed them throughout veg and one last time before they begin flowering, no PM has shown up. I also do not bring any plants in from outside, or even soil that's been out there open/exposed.
I've tried milk up to 15%, h202 up to 5%, and a mix of baking soda/vegetable or olive oil (olive oil seems better), and soap. The latter seemed to work the best for me at about 1/4 tspn of baking soda, 1/16 tspn olive oil and a few drops of dish soap, per litre of water (4L = ~1gal). It dilutes/dissolves/mixes and works better if you prepare it a couple of days ahead of applying it, shake it daily.
You'll need to spray until they're finished, then clean your room well (I do it anyhow between runs whether I need it or not), seal or heavily filter any incoming outside air and avoid bringing anything into your room from outdoor. Have a look around and you'll likely find it outdoors, it's a bitch. Good luck.
