White powdery mildew

Ok gents, I'm in week 5 of flower with 2 different strains. They have pretty much been on cruise control up until this point. I'm feeding down to earth nutes,running in a 4x8 tent,led lighting. Temps are 78-81 during the day,73-77 at night. I started flower at 45% humidity,now I'm at 40%. I have 10-5 gallon buckets in the tent. I'm wondering if it's too crowded. I have 4-12 inch hurricane fans (2 on bott,2 on top) and I added a few small oscillating fans. I'm pretty lost.....everything was going great.

Samanosuke82 said:

Ok gents, I'm in week 5 of flower with 2 different strains. They have pretty much been on cruise control up until this point. I'm feeding down to earth nutes,running in a 4x8 tent,led lighting. Temps are 78-81 during the day,73-77 at night. I started flower at 45% humidity,now I'm at 40%. I have 10-5 gallon buckets in the tent. I'm wondering if it's too crowded. I have 4-12 inch hurricane fans (2 on bott,2 on top) and I added a few small oscillating fans. I'm pretty lost.....everything was going great.

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It doesn't appear to be over crowded in your pictures. Where is the PM you speak of?

Let me see if I can grab a few pics for you

These are the best I could get

This is a top view of everything.

Samanosuke82 said:

These are the best I could get

Click to expand...

Well, defoliate your major problem leafs, turn off the fans while you do so you’re not spreading spores. Next you’re gonna wanna mix up some baking soda and water, teaspoon per quart distilled water, apply as a foliar spray, try to avoid the buds as best as possible. All you’re doin is altering your surface ph to where wpm doesn’t thrive. You’ll have to do this twice then once a week through to harvest cause it’s not going away. It’s a pain in the ass. After harvest do a peroxide bath (diluted of course) with fresh cut branches after removing remaining fans leaving only sugar leaves. Gently move it through the bath like you’re reviving a fish. Skim off the shit that hits the surface, give the bathed branch a wash with a mist sprayer then hang to dry. You’ll get a good 95% of it gone this way, maybe a full 100% if you can keep it under control at the stage your at. Good luck, you’ve added a good 30 mins a day to your overview to make sure you hold it at bay, but it’s a labour of love so as much as it sucks it’s still enjoyable making sure you grow your best

Samanosuke82 said:

This is a top view of everything.

Click to expand...

Best observation I can offer is you do have some plant to plant overlap of fans. Hurts the respiration, pools microdroplets creates a breeding ground for spores. Odds are they came in on your clothes after being outside, it happens. You’ll get it under control I got faith in yuh

Keep your day and night temps within 5 degrees will help dramatically. That’s what fixed it for me. I can even run 50-60% humidity now since I setup a little heater on an ink bird so my temps stay very close from day to night and it has totally solved my issues and I don’t pull outside air anymore just from within my home but my house is super old so I’m sure there is mildew spores in the air still so I personally believe it’s the temp that made the most difference. Sorry for the punctuation I’m not a good typer

Treesomewanted77 said:

Keep your day and night temps within 5 degrees will help dramatically. That’s what fixed it for me. I can even run 50-60% humidity now since I setup a little heater on an ink bird so my temps stay very close from day to night and it has totally solved my issues and I don’t pull outside air anymore just from within my home but my house is super old so I’m sure there is mildew spores in the air still so I personally believe it’s the temp that made the most difference. Sorry for the punctuation I’m not a good typer

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Pulling cooler outside air once mixed in the warmer temps will raise the RH. It's called Relative Humidity because the Humidity changes based on temp.

Mix 1 tablespoon potassium bicarbonate, 1 teaspoon Castille soap, 1 teaspoon olive oil per gallon of water, then spray on entire plant.

Works for me every time and seems to help prevent botrytis as well.

Samanosuke82 said:

Ok gents, I'm in week 5 of flower with 2 different strains. They have pretty much been on cruise control up until this point. I'm feeding down to earth nutes,running in a 4x8 tent,led lighting. Temps are 78-81 during the day,73-77 at night. I started flower at 45% humidity,now I'm at 40%. I have 10-5 gallon buckets in the tent. I'm wondering if it's too crowded. I have 4-12 inch hurricane fans (2 on bott,2 on top) and I added a few small oscillating fans. I'm pretty lost.....everything was going great.

Click to expand...

I've had perfect results using " Banish Fungicide " . It's an oil extracted from geraniums. It can be used even during flowering. I wouldn't use many of the other fungicides , the products of combustion look sketchy.

I appreciate all of you gentlemen,thank you!