What would you think be best to use for PM milk and water or hydrogen peroxide or GH exile or try get regalia think i found a store that has regalia maxx
How to handle the white powdery mildew ?
- Thread starter Cammcdan
- Start date
MICHI-CAN
Well-Known Member
I'd use H2O2 before Ifed fungas carbs and protien. Just me.
Whats H202 ?
MICHI-CAN
Well-Known Member
Hydrogen peroxide. Lol.
Oh haha figured thats what it was how much you mix with water ?
MICHI-CAN
Well-Known Member
Straight if it is 6% or less.
BigDaddyStrain
Active Member
yes once a week or so
BigDaddyStrain
Active Member
''Scientists are not exactly sure how milk sprays work, but most think proteins in the milk interact with sun to create a brief antiseptic effect. Any fungi present are "burned" into oblivion, but there is no residual effect after that. In order to be effective, milk sprays must be used preventively, must be applied in bright light, and should be repeated every 10 days or so.''
Ok sweet thank you!
Ill wait till the next day its sunny and try out milk and water
@MICHI-CAN I got my pm back during flower can you use the H2O2 on buds during flower ive tried apple cider vinegar 2tsp and quart of water didnt seem to work and 3:1 ratio i tried on some leafs it works but that seems to strong of apple cider vinegar to spray on buds. We've had a wind and rain storm since Monday ends tomorrow so had to put all my plants under my patio and pm is spreading all my buds look so good don't want to lose or wreck them one bud on one my plants has a brown spot bud rot rest bud looks good im guessing I cut that spot out before spreads?
SupraSPL
Well-Known Member
H202, 1% milk, apple cider vinegar, neem oil, compost tea, baking soda, ultra low humidity etc will treat it/manage it but will not cure it. I tried different things for about a year before I gave up and shut the perpetual down, treated the most important clones with a systemic fungicide (Myclobutanil), sanitize your grow space thoroughly with hydrogen peroxide or even bleach and begin again. Since then, no powdery mildew for years now and I do run at 60-80% relative humidity.
Dont break your back trying to maintain 30% humidity, it will not cure anything just slow it down. Once you are cured, you can run up to 75% humidity with no problem. So high humidity doesnt cause it, but it can encourage it once the spores arrive (usually on contaminated clones). If you live in a place that has lots of cannabis grows nearby, the spores might arrive via intake air but I am not 100% sure about that.
Dont break your back trying to maintain 30% humidity, it will not cure anything just slow it down. Once you are cured, you can run up to 75% humidity with no problem. So high humidity doesnt cause it, but it can encourage it once the spores arrive (usually on contaminated clones). If you live in a place that has lots of cannabis grows nearby, the spores might arrive via intake air but I am not 100% sure about that.
MICHI-CAN
Well-Known Member
I tried all the home remedies with no good results on large over crowded plants. Baking soda and milk stained my leaves. H2O2 oxidized this. Vinegar left no damage. But PM was back with a vengeance in a couple days. I ended up throwing a huge piece of plastic over my plants. Sprayed my entire tent "greenhouse" surface and all hardware with 70% alcohol. Removed plastic and waited 24 hours. Then applied a foliar of Regalia "CG" at 2oz/gal. 3 days later and I introduced into watering and food at the same rate. Effects were noticeable in few days. Repeat both every 7 days with foliar and feeding being 3 days in between eachother. Almost 2 weeks later and I am happy to say my PM appears to be almost completely gone.
@hodgey420
I'm growing outdoors
Any tips for outdoors? I also just found bud rot on one p.ant on couple nugs do I cut the whole bud off or just cut few cm below the bud rot type thing ?
Hey there!
I live in BC, Canada and ordered Neem oil from Amazon.ca It arrived in less than 5 days..
MICHI-CAN
Well-Known Member
At this stage just airflow and luck. Sorry. Keep them separated if in pots. Away from walls and fences or other plants. They all block wind and hold if not produce moisture.
The bud rot I take the whole branch if under a foot. Or at least 6" below it if larger. Better safe. Contrary to opinion I like to rinse my plants down before I handle or trim with pm or rot. Spores don't float when wet. Do this in the morning on a sunny day with a breeze. Rinse the plant again afterwards. Shake to remove excess water. Wash your hands and tools with 70% alcohol. Discard clothing worn. Launder immediately. You are carrying spores. Tie trimmings in a plastic bag and dispose of in outside trash headed for landfill.
I almost had my butt handed to me this year. Milk would be only suggestion. 25% solution worked fairly well. Just rinse off after 24 hours. Dried to a nasty white stain on the leaves. Looks worse than the PM. Whole milk appears to work better. And fresh from the cow after skimming the cream off worked better. Still country creed at heart. LOL.