First time grower with a problem. Maybe powdery mildew? Or maybe aphids? Need help

oh yikes you got PM bro.. what are your temps and RH and fresh air exchange lookng like?

I moved and added another fan to the tent to blow air on the canopy more so hopefully that works, I didn’t have much air on the actual plants just air coming in and out of the tent

LittleDabbie said:

oh yikes you got PM bro.. what are your temps and RH and fresh air exchange lookng like?

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I’m trying to keep the temps below 75 degrees and the humidity around 55-60 % I think I might need more fresh air being pulled in

Shanewatson said:

I moved and added another fan to the tent to blow air on the canopy more so hopefully that works, I didn’t have much air on the actual plants just air coming in and out of the tent

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Mix one level tablespoon of baking soda to 1 gallon of water, spray both sides of the leaf very well treat the entire plant, treat every plant and the faster you do it the quicker you're going to stop the spread; I would do that right now as a rescue, and then you can learn more about how to prevent it going forward mr. Watson

Edit: and after you stop it you're going to want to get liquid copper fungicide you can get it at Home Depot or any home good store it works much better than the baking soda but the baking soda will stop it quick, which is what you need right now

Shanewatson said:

I’m trying to keep the temps below 75 degrees and the humidity around 55-60 % I think I might need more fresh air being pulled in

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Yes, do you have any inline fans sucking hot air out and cool air in? if not.. get one ASAP !! Ducting and inline fan run ya like maybe 80$ for a good 400-500 CFM fan.

LittleDabbie said:

Yes, do you have any inline fans sucking hot air out and cool air in? if not.. get one ASAP !! Ducting and inline fan run ya like maybe 80$ for a good 400-500 CFM fan.

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I have one inline fan sucking air out and two fans blows into the tent at the bottom so might need more air going thru the leaves?

Beachwalker said:

Mix one level tablespoon of baking soda to 1 gallon of water, spray both sides of the leaf very well treat the entire plant, treat every plant and the faster you do it the quicker you're going to stop the spread; I would do that right now as a rescue, and then you can learn more about how to prevent it going forward mr. Watson

Edit: and after you stop it you're going to want to get liquid copper fungicide you can get it at Home Depot or any home good store it works much better than the baking soda but the baking soda will stop it quick, which is what you need right now

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Also I have neem oil and water I spray on the leaves but these 6 plants are just started flowering two weeks ago

Yeah i would add a fan or 2 inside the tent to push more air around the leaves better circulation should prevent also maybe lower the humidity in flower down to 40-45%

Shanewatson said:

Also I have neem oil and water I spray on the leaves but these 6 plants are just started flowering two weeks ago

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Neem oil won't treat or stop white powdery mildew. To be clear your plants are in serious jeopardy right now, I had much less wpm than you maybe 6 months ago and it devastated my veg plants, what you see now isn't the end of it as you'll find out. I'm just now getting them back in shape after months of rehab

Beachwalker said:

Mix one level tablespoon of baking soda to 1 gallon of water, spray both sides of the leaf very well treat the entire plant, treat every plant and the faster you do it the quicker you're going to stop the spread; I would do that right now as a rescue, and then you can learn more about how to prevent it going forward mr. Watson

Edit: and after you stop it you're going to want to get liquid copper fungicide you can get it at Home Depot or any home good store it works much better than the baking soda but the baking soda will stop it quick, which is what you need right now
[/QUOTE

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Beachwalker said:

Neem oil won't treat or stop white powdery mildew. To be clear your plants are in serious jeopardy right now, I had much less wpm than you maybe 6 months ago and it devastated my veg plants, what you see now isn't the end of it as you'll find out. I'm just now getting them back in shape after months of rehab

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Does ph matter when putting the water on the leaves?

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The reason to use the baking soda is because the pH is so very high, & that's what stops the mold from spreading; it doesn't affect the plant in any way

Beachwalker said:

The reason to use the baking soda is because the pH is so very high, & that's what stops the mold from spreading; it doesn't affect the plant in any way

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Got it, so high nothing can survive, my filter hose water come out fairly high ph so I try to use lemons and baking soda to adjust the water when I feed but I use kelp and seaweed recently so that drops the ph. Maybe the seaweed and kelp didn’t help?

Beachwalker said:

The reason to use the baking soda is because the pH is so very high, & that's what stops the mold from spreading; it doesn't affect the plant in any way

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I appreciate all the help! I sprayed them with the baking soda and water going to leave the lights on them for another 3 hours

Shanewatson said:

I appreciate all the help! I sprayed them with the baking soda and water going to leave the lights on them for another 3 hours

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you're welcome, this is the product I use, used it today out in my tomato garden works well



It stopped the p.m. in a couple of applications whereas baking soda needs to be reapplied continually and I didn't have great results from it it's a temporary fix in my opinion until you can get a proper product

there's white spots you can see but there's also other affected areas that you can't see yet, so it's important to treat all plants and the whole plant both sides of the leaf, best of luck

Ps. I always raise the lights or turn them down or both after I spray something on a plant not sure if it's necessary but I don't think it's a bad practice