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Grow QuestionsUNEXPLAINED MILDEW

UNEXPLAINED MILDEW

Ryheem420started grow question 2 years ago

I am getting a spot or 2 of mildew and idk why. temps are low 70s humidity avg 38% i have a box fan a tower fan and a clip on fan in a 2x4x5 and i keep a clean tent. just kinda baffeled. is it my area and time of year. Im in WNY

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Week 15

Other. Mold

Sciolistic_Steveanswered grow question 2 years ago

it's just in the air. it can overwinter on twigs, leaves, other organic material. here's one of the better summaries i found that isn't based on some monkey in their basement, like me. https://extension.psu.edu/powdery-mildew The organic home remedies suck a dick. i've tried them all. Anything that would be effective is probably not wise to use in bloom... so you have few options. continue to search through canopy and remove infected bits... use some sort of baking soda or h2o2 foliar spray often. It'll look like it does something for a day or two, but you quickly realize all it does is hide it from your eyes.. it's still there. i'm hoping a long break will allow me to get rid of whatever remaining spores there are.. i've had an issue for a while now. even though i'm not growing harvest crops year round, there are mothers and other side projects occurring that can allow it to persist... but 3months off after a very throrough cleaning should help. crossing fingers it's not wintering in hvac, lol.... maybe sulfur bomb the room after harvest.... once it's there you aren't getting rid of it. when you see it, it's been there 4-7 days in that spot alone. it's already spread by that point whether you can see it or not.. the fight is on... keep it at bay as best you can. I throw out any infected bits, but you could attempt an h2o2 bud wash when done too.. this will do nothign to the mycelium network that is underneath top layer of leaf/stem/petioles/buds etc.. so, don't think it "sanitizes" wpm.. cause it does not. it will reduce it. that is about all it ever does. you need somethign like 2-3% soaking for 30mins or more for this material and a little dip is not going to do it... soaking it that long will virtually remove all flavor, in my experience, and not worth it. definitely becareful of using it for any extracts... super high alcohol % might kill it, but you'll still have leftover spores and bits in your extract even if not viable to grow anymore. theer's no "good" way to use infected material unless you want to rip people off and make them wheeze and cough for a few days.

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m0useanswered grow question 2 years ago

LOL @Nugsery that guy,,, @Creepy_Steve is one of the best reference points for WPM with IRL experiences with it. I don't really get it and I am blessed for that and Steve has battled with it for quite some time so I trust their experience with it.

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Ezzjaybruhanswered grow question 2 years ago

Lmao dude just bumps his question to the top. If you need seeds that bad holler at me homie.. geez

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GrowingTrannyanswered grow question 2 years ago

High bro, the germination of powdery mildew spores thrives in high relative humidity. The mycelium grows best at a low relative humidity. And since the air is relatively humid at night and relatively dry during the day, powdery mildew can spread very quickly in a greenhouse. There are three effective ways to combat mildew. Interestingly, each technique is organic in nature and does not involve industrial fungicides. Two of these involve spraying; the third technique revolves around cleansing the infected leaves by hand. The first spray technique uses a solution of 250ml water and two tablespoons of apple vinegar. Spray this mixture onto the leaves to remove the mildew, or to prevent untouched leaves from getting infected. The second spray consists of a 60% water and 40% milk mixture. This solution is only used in outdoor sunlight grows or high intensity lighting setups indoors. An alternative option is using fish oil, but this is considerably more expensive. The third technique involves taking a piece of damp kitchen towel and gently wiping the mildew off the infected leaves. If you decide to try this, be very careful to change your kitchen towel before switching to the next plant to prevent spreading the infection!

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Ezzjaybruhanswered grow question 2 years ago

Lol he just reposted it. Weak bruh.

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GrowingGrannieanswered grow question 2 years ago

Oh Nugsery is desperate, isn't he! I'll repost Ezzjaybruh's answer here... it's perfect: "Nugsery over here just copying and pasting from webpages. https://ibb.co/v4SMk6Q If you don’t know, you don’t know. Just don’t answer. There’s plenty of ppl on here that can handle WPM questions bruh"

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Sciolistic_Steveanswered grow question 2 years ago

the link i put in there explains why some of these home remedies "seem" like they are effective, but it amounts to just syringingn off the leaves... a heaving misting of water might be 80-90% effective as milk or sodium/potassium bicarbonate sprays... i use neem all throghout vege and never see it. it is preventative only... any horticultural oil wil have similar effect. Once i stop using it 3-4 weeks later i start to see issues because developing flower prevents me from applying neem. depending on region.. this is a very common issue. those that don't have it don't understand how ubiquitous it is.

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Ezzjaybruhanswered grow question 2 years ago

Nugsery over here just copying and pasting from webpages. https://ibb.co/v4SMk6Q If you don’t know, you don’t know. Just don’t answer. There’s plenty of ppl on here that can handle WPM questions bruh

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m0useanswered grow question 2 years ago

WPM is a cure on us all, some people no matter what they do will get it. It is in the environment and can survive long periods of time, It says in the soil and just waits for the right time to become opportunistic. So will say they have had good luck using a milk wash spray to make the environment less hospitable to the WPM spores. Some also clam that a mix of baking soda water helps as it changes the PH. One sites I've read says they are all myths and the only thing that works is antifungals that are sulphur based. I myself believe that if you place other microorganisms on the plant it take away the real estate the WPM can make a home of. I use something called LABS serum and its lactoacid bacteria that u spray on the plant. Its not tested but in theory it works. SO take this all with a grain of salt given I can not give tangible proof from a peer reviewed source. Best you can do right now is pick off the leaves that have WPM and spray it with peroxide before touching it to help kill off any of the spores that may fly away. FYI: We will not be notified of any reply or tag [@] in the questions part of the website, if you need to reach out with other information use your DM "direct mailbox" in the bottom right hand corner of the page. it looks like a little paper airplane icon. Best Of Luck!

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