White powdery mildew, what do I do?

No one here is against anti-fungals. A little H2O2 wash before drying is a good anti-fungal measure. And it’s safe. You can just rinse it off. You trying to frame any disagreement with consuming known and potentially toxic substances as unreasonable should pretty clearly show what argument has any merit whatsoever.

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Quit growing ditchweed, grow something worth growing for a change ya know sticky Greasy.
Them gnats don’t come off that shit clear upto a bull fly.
Fuck them chemicals, sounds like most of ya wash anyway so insects shouldn’t be an issue.

Me , they fall off when the resin hardens so I don’t worry about it.

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sorry my meat breath doesn’t match your high standards. Check out my IPM I sweep and vacuum the floor I still have the sheets of polymer on the floor I had when I had mildew.
Hey man, don’t be shy, you should stop by my hash thread and I’ll teach you how to make some freeze dried prize winning hash.

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Appreciate the offer im pretty dedicated to dry seive.
And the old shake rattle and roll from the freezer.

Good to see some cleanliness for sure, I’d hate to imagine some people’s digs.
Ya need to get some tape for them holes there, shit likes to hide in the dark.

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lol yah I lift that stuff up and clean underneath too, the leaf particles will build up otherwise. It’s clean room style, once I figured out the last step to keeping it clean while bringing in new clones, I was golden.

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Here’s when I realized that I failed my 2 week quarantine and let in an infection downstairs, April 11th, a little under a month after receiving the dirty cut, and still not seeing the infection on the plant that I suspect started it. But for this clone to have it meant that my veg tent had it, and subsequently one new plant added to the flower room had it. All was infected. Super Lemon Haze clone with the PM.

I wish I would have known about the UV blacklight back then. I could have stopped it. But hindsight, something something. Once I shone the light I could see it everywhere, in every tent.

Anywho, here’s my question to @JoeCrowe. After the second sulfur spray and several direct dustings, I’m still seeing glowing bits on a couple plants. It’s not spreading, and it is in spots I know I have already dusted. Might the glow just be the dead body of the PM still hanging on? I’ll probably throw these plants out just to be sure. I have noticed dead spots, like on a burned leaf can also glow. I suppose I’ll have to bust out the USB microscope and see what’s up.

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Bust out the scope and take a small tissue sample to look at it and make sure. lol as long as you encrusted the host in sulfur and made sure to treat all plant material, it’s toast for sure. You can give it multitudes of sprays if you want, it won’t hurt the plant.

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Thanks. Yes, the “treat all plant material” aspect is much harder than it sounds. I have the hardest time coating the underside of leaves by spraying. I’m thinking of making up my sulfur mix in a bucket and literally dunking them upside down in it to coat everything. Sure would save me the mess of spraying in the tent.

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When I did it I went crazy like a maniac spraying the plants up and down till they were dripping. mm the smell of it all, heh heh heh I didn’t clean it up until the whole mess was over. I took the plastic sheets I use on the floor and hosed them off outside. Most of the mess was on there. Unfortunately you’ll have to do a little more manual labor for the clean up. Good news is the sulfur isn’t going to cause cancer or turn into hydrogen cyanide. hah hah!

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When I sprayed for thrips I got a spray bottle where the head rotated 360 degrees. Very easy to spray under the leaves that way.

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yeah i know, I think most people if they got thru high school also know, like table salt made from two poisonous explosive materials. I worked for a major fireworks company, the big stuff, I use to make shells for them as did others.

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That was one of my ‘dream jobs’ when I was a kid… :star_struck: :+1:

Cheers
G

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Could you beak down your PM protocol/treatment for me?

I’m guessing it’s a bit more than just spray sulfer on the plants and calling it a day.

pretty much it. Spray them twice 2 weeks apart, drench them good. Feel free to spray them extra times, it won’t hurt them. Beacher sprayed his 4 times once per week. Online it says spray them twice 1 week apart and a third time if you don’t think you got it all. There’s lots of little variations but they are basically all the same treatment protocol.

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Do you thoroughly clean/sterilize your grow environment the first time, or just spray the plants only?

I do believe these reoccurring infestations are a occurrence of people not properly clean their grows, also how much people let the PM fruit in their garden.

I think if one is able to catch it in the early stages it would be much easier to eradicate vs a full blown infestation, as PM has had time to release many spores.

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It was a full infestation that had been going for a year or longer as I tried each futile thing to eradicate it. Believe me I had read every piece of disinformation out there related to mildew. It was very surprising to me that I had actually eradicated it, I kept thinking it would come back - that’s what I recognize now as powdery mildew PTSD.

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Good point.

My opinion is on a large scale its too labor intensive to make sure u get every piece of plant. They would rather use a systemic where its not too critical to hit every piece of plant material. Also people arent smoking corn and the problem with this eagle 20 comes down to smoking it.

IDK. Thats my uneducated take on it. I obviously could be 100% wrong.

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Right there! How many people say garden soap won’t get rid of mites. When they don’t follow directions to a T, and cover every sq mm of the plant with it. Screw spraying it, I dunk the whole plant in the solution, hold it under for at least 30sec and swirl it. No where for them to hide. Not everyone can do that when their plants are bigger than the bucket, so not every single leaf and stem is saturated, so some survive. Soap drowns them, can’t really build a tolerance to a physical assault.

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Why do fertilizers exist when you can organically replenish soil? It’s fast and people either don’t know about or don’t give a shit about the consequences. It literally happens to every possible industry all the time and you’re acting like this is some wholly irrefutable logic? Come on. Just think for a minute.

Why would any agricultural industry anywhere use fungicides, or further than that, why would anyone take the time in a lab to invent fungicides if sulfur is this one-shot miracle cure that totally eliminates PM in two sprays?

Because if you take a moment to consider all the information we have, Sulfur clearly kills PM, and so do lots of other things. However, Sulfur can only kill PM it entirely surrounds. So if you miss any area of treatment your problem will persist. So, having a chemical that makes you not have to deal with that, and especially if you don’t give a fuck about the consequences, well then there you go. But some of us do care about the consequences.

People that grow crops with modern agriculture for a living aren’t stupid…agriculture is the biggest industry on the planet.

With it being the biggest industry on the planet it would, statistically, contain the most stupid people as well. My grandpa still has owned a farm his entire life. He solely fertilize farmed his entire life because that was just the way it was done. People having experience does not make them educated. You are constantly appealing to faulty logic to make your arguments.

Billions and billions of dollars in product are lost through reduced yields from mildew and other fungi. If sulfur is magic, and cheap, and available, why bother? Why take the time?

Because there is more than “putting absolute no thought into this problem whatsoever and just appealing to people emotionally” to agriculture.

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oh yay another “fErTiLiZeR bAD” adherent.

@SquirtleSquad Sprayers are not new technology at all. There’s huge ones that can cover hundreds and hundreds of acres per day. Used to pass them all the time they’re kinda funny looking. These:

IDK if you’ve priced certain fungicides but they can cost tens of thousands of dollars in amounts you’d need for big acreage. Sulfur couldn’t be more than a few hundred a ton could it?

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