C99 x Blueberry Fast: Pheno Hunting & Comparison Grow Featuring Alaskan Purple
- Thread starter SeedsMan
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...try this...
What causes White Powdery Mildew?
High Humidity
High Humidity
- WPM needs moisture to thrive, but that doesn’t necessarily mean it needs water. Having a grow area with high humidity is all WPM needs to grow. This seems to be a bit problematic since young cannabis plants grow best in relatively humid environments (40% -60% RH). Luckily, high humidity usually only becomes an issue when it’s combined with the next cause (low/no airflow).
- People who live in environments with extremely high humidity (such as Florida and the UK) can purchase a dehumidifier to control humidity in the grow area. This is especially important during the flowering phase when humidity needs to be much lower (45% rh) to prevent rampant growth of WPM and bud mold.
- White Powdery Mildew has a hard time settling in a grow room where the air is being moved. High humidity will give WPM the conditions it needs to survive, but poor airflow is what gives it the ability to settle down in the first place. In fact, a small (preferably oscillating) fan moving air in a grow area will prevent the vast majority of White Powdery Mildew woes.
- If you have WPM spores in your grow area and the air in grow area is never exchanged for fresh air, the spores get multiple chances to land on your plants and reproduce. This happens most often in conditions where cannabis is being grown in a closed, un-ventilated space – such as a closet – and precautions aren’t taken to exchange old stale air for new fresh air.
- Leaves that are touching each other will form moisture between them, and thus they become more likely to contract WPM. Untrained bushy/leafy plants with lots of new vegetative growth are especially prone since plants will often have leaves mashed up against each other as they try to reach the light.
- Advanced growers can defoliate some of the fan leaves that are completely shaded from the grow light to make fewer choice landing spots for White Powdery Mildew. Also, defoliation frees up energy for the plant to use when done correctly and increases yields!
How to Eliminate White Powdery Mildew
As I mentioned earlier, I recently had a battle with White Powdery Mildew. Rather, it might have been a battle if I noticed it later or waited to fix the problem. That’s the one good thing about WPM: in most cases when WPM is caught early, you can remove all traces of the mildew without harming your plants.
There are quite a few products and homemade concoctions people use to treat WPM. Among the effective treatments are:
@playerunknown here ya go hope it helps man
As I mentioned earlier, I recently had a battle with White Powdery Mildew. Rather, it might have been a battle if I noticed it later or waited to fix the problem. That’s the one good thing about WPM: in most cases when WPM is caught early, you can remove all traces of the mildew without harming your plants.
There are quite a few products and homemade concoctions people use to treat WPM. Among the effective treatments are:
- Milk (1:9 ratio of milk to water)
- Baking soda (2 tablespoons per gallon of water)
- Neem Oil (4 teaspoons per gallon of water)
- Hydrogen Peroxide (1 teaspoon per gallon of 35% H202)
- SM-90 (1:5 ratio of SM-90 to water)
- Remove White Powdery Mildew from leaves – Get some water (tap water works fine) and some paper towels. Wet the paper towels and use them to gently wipe the mildew off the affected leaves whilst being careful not to jostle any leaves with spores on them. Using a wet cloth will ensure that more spores stick to the cloth instead of becoming airborne. Note: While it isn’t necessary to use paper towels, their disposability helps to curb the spread of spores from one leaf to another.
- Ensure plants have proper airflow and ventilation – Even if you have absolutely no airflow or ventilation in your grow room, having even two fans will drastically reduce your chances of encountering WPM while also benefitting your plants overall health. One fan should be oscillating if possible and should gently blow air over your plants. All the plants need is enough air to gently rustle their leaves. The second fan should be in your grow room pointing outward, pulling heat away from your plants (only needed if you have no ventilation). Having a fan pointing out of your grow room will force old air out of the room, and in turn, pull new air into the room. At this point, you’ll have new air coming in, being used and circulated, then kicked out. Keep in mind that two fans is a minimum.
- Treat plant with SM90 to kill spores prevent future growth – Mix 1 part SM90 to 5 parts water(I’ve found 7 parts water to be equally effective) in a clean sprayer/mister. Wait until just before your lights for off for the day and mist your (newly cleaned) plants. Get all the leaves! This diluted SM90 mixed will kill any spores it touches, and anywhere it lands becomes uninhabitable for future spores. Plus, it’s safe to use – even during flowering – and it smells awesome.
@playerunknown here ya go hope it helps man
Derbybud
Well-Known Member
Nice posts Mocha and thanks
playerunknown
Well-Known Member
Cheers mocha. I looked into that sm 90 stuff last night and it turns out that it’s pulled off shelves right now unfortunately. I’m going to give the baking sofa a method, hopefully it’s a bit more gentle on the plants themselves. Fingers crossed it worksHow to Eliminate White Powdery Mildew
As I mentioned earlier, I recently had a battle with White Powdery Mildew. Rather, it might have been a battle if I noticed it later or waited to fix the problem. That’s the one good thing about WPM: in most cases when WPM is caught early, you can remove all traces of the mildew without harming your plants.
There are quite a few products and homemade concoctions people use to treat WPM. Among the effective treatments are:
Rather than go into these methods, I’m going to give you the simple strategy I use that gets rid of White Powdery Mildew on the first try, every time! Here’s my trusted 3-Step White Powdery Mold cure:
- Milk (1:9 ratio of milk to water)
- Baking soda (2 tablespoons per gallon of water)
- Neem Oil (4 teaspoons per gallon of water)
- Hydrogen Peroxide (1 teaspoon per gallon of 35% H202)
- SM-90 (1:5 ratio of SM-90 to water)
There you have it. If you end up running into White Powdery Mildew, give this advice a shot and you won’t have to deal with it past that first day. If you do end up using these steps, feel free to let us know if it helped you or not, or how you did it differently. When growers know just a little bit about this disease, it doesn’t have a chance!
- Ensure plants have proper airflow and ventilation – Even if you have absolutely no airflow or ventilation in your grow room, having even two fans will drastically reduce your chances of encountering WPM while also benefitting your plants overall health. One fan should be oscillating if possible and should gently blow air over your plants. All the plants need is enough air to gently rustle their leaves. The second fan should be in your grow room pointing outward, pulling heat away from your plants (only needed if you have no ventilation). Having a fan pointing out of your grow room will force old air out of the room, and in turn, pull new air into the room. At this point, you’ll have new air coming in, being used and circulated, then kicked out. Keep in mind that two fans is a minimum.
- Treat plant with SM90 to kill spores prevent future growth – Mix 1 part SM90 to 5 parts water(I’ve found 7 parts water to be equally effective) in a clean sprayer/mister. Wait until just before your lights for off for the day and mist your (newly cleaned) plants. Get all the leaves! This diluted SM90 mixed will kill any spores it touches, and anywhere it lands becomes uninhabitable for future spores. Plus, it’s safe to use – even during flowering – and it smells awesome.
@playerunknown here ya go hope it helps man
Thanks
had it once and took some notes 
I'm not the author of this info 
I'm just the copy and paste guy 
and sorry about the sm90 it was sold when I had PM 
to bad it killed it dead and the plants seemed to like it 
Peace and good luck with that buddy
Orlando Scout
Member
Milk works really well and so does 1part iso alcohol to 9parts h2o
Here are my babies today...
The Alaskan Purple is showing some growth... I'm still skeptical. I hope the spotting on the leaves is just a bit of scarring from the seed husk. She shed her helmet above ground. LoL, took her a minute to "come outta her shell" lol
-peace out growmies!
The Alaskan Purple is showing some growth... I'm still skeptical. I hope the spotting on the leaves is just a bit of scarring from the seed husk. She shed her helmet above ground. LoL, took her a minute to "come outta her shell" lol
-peace out growmies!
Bilbobudkin420
Well-Known Member
Oh snap P. Theey growing quicktime huh!Here are my babies today...
The Alaskan Purple is showing some growth... I'm still skeptical. I hope the spotting on the leaves is just a bit of scarring from the seed husk. She shed her helmet above ground. LoL, took her a minute to "come outta her shell" lol
-peace out growmies!
Soon as #1 got a taste of them nutes... she exploded. Hit the edge of the pot already.
I hope to move #2 into her pot today or tomorrow. I'm ready to get her hooked on the juice too.
Here are my babies today...
The Alaskan Purple is showing some growth... I'm still skeptical. I hope the spotting on the leaves is just a bit of scarring from the seed husk. She shed her helmet above ground. LoL, took her a minute to "come outta her shell" lol
-peace out growmies!
Fuck ya they growing quick
Hell I'm still waiting for 1 to come out of the soil 
Bilbobudkin420
Well-Known Member
Still in coco right? Im hoping ill see some much wanted improvement on my little ones when i go up tonight!Soon as #1 got a taste of them nutes... she exploded. Hit the edge of the pot already.
I hope to move #2 into her pot today or tomorrow. I'm ready to get her hooked on the juice too.
Heavenly Hybrid
Well-Known Member
Wow, looking good there @Preston9mm, makes me want to run and check mine too! Trying to get them all moved up to bigger pots today - except for one of the Alaska purples. She may meet her end soon 
She never got any inner leaves. I thought I’d wait and see if anything came out of the center, but it’s not looking good. @SeedsMan (or anyone) have you seen something like this before?
She never got any inner leaves. I thought I’d wait and see if anything came out of the center, but it’s not looking good. @SeedsMan (or anyone) have you seen something like this before?
Derbybud
Well-Known Member
Wow double H I think you topped her a bit too soon. Lol
Bilbobudkin420
Well-Known Member
It happens! In my experience they will usually pop out some leaves but theyll take their time. Its the seed casing has pulled off the leaves i assume. Thats what happened with mine anyways.Wow, looking good there @Preston9mm, makes me want to run and check mine too! Trying to get them all moved up to bigger pots today - except for one of the Alaska purples. She may meet her end soon
She never got any inner leaves. I thought I’d wait and see if anything came out of the center, but it’s not looking good. @SeedsMan (or anyone) have you seen something like this before?
I'm all for letting her goWow, looking good there @Preston9mm, makes me want to run and check mine too! Trying to get them all moved up to bigger pots today - except for one of the Alaska purples. She may meet her end soon
She never got any inner leaves. I thought I’d wait and see if anything came out of the center, but it’s not looking good. @SeedsMan (or anyone) have you seen something like this before?
I have a home genetics, DDA x GDP, who was a stunted runt, almost gave up on her
She now is hitting the top of my 5' tent and had to supercrop like 6 branches
But that's me
Scottsquatch
Well-Known Member
Preston, is it me or does that first "Cinderberry fast" look like she is begging to be quadlined when she gets bigger. I look at her and instantly think "I'd like to quadline that plant. Good luck with #2. May she have explosive growth as well.
Ohhhhh yeah.... she gon' get cut. LoL
I plan on doing a bit of training on all of these.
playerunknown
Well-Known Member
Hey folks I just picked this up from my local Lowe’s. any thoughts or experience with this product? Cheers.
