Powdery Mildew 4 weeks into Flower....best product?

dimeb8g · #1 03-15-2008, 10:46 PM

So I have six super silver haze plants that are 4 weeks into flowering and the powdery mildew is a bitch to get rid of. I've been using Daconil for the past 2 weeks every 4 days, which contains 29% chlorothanonil in it's concentrate diluted at 2ml/500ml water and is safe to use on all plants, herbs, and vegtables.

My room temp is 70-75 in the day and 60-65 during the night. I water only in the mornings. RH is at about 50%. Circulation fans, intake fans, relfectors are ducted out to the 20" exhaust fan. All the conditions seem to be correct, and even with a fungicide the problem is still contiuing to get worse.

Tomorrow I am buying a dehumidifier to get the RH as low as possible.

Any other suggestions????

Also..

Does anyone know of any real/credible results using potassium bicarbinate or Neem oil? Also, I have heard that adding neem oil to a potassium bicarbinate mix will boost it's effectivness...True??....Thanks everyone for your help.

Pseudonym · #2 03-16-2008, 01:05 AM

If the mildew is on your buds then it's budrot and you need to remove all of the infected buds so you can save the rest of your plant. Fungacides won't help you now. And I don't think you would even want to smoke something that's be fungacided.

CALIGROWN · #3 03-16-2008, 01:05 AM

use hydrogen peroxide to get rid of it...then keep your temp above 75 and it cant grow...

upncoming · #4 03-16-2008, 01:35 AM

Don't listen to those idiots. You can use alkaline water or there is a product called Seranade that works well... even during flowering.

Powder mildew has nothing to do with budrot. Don't remove your buds. What a dumb ass.

CALIGROWN · #5 03-16-2008, 01:36 AM

Quote:

Originally Posted by upncoming

Don't listen to those idiots. You can use alkaline water or there is a product called Seranade that works well... even during flowering.

Powder mildew has nothing to do with budrot. Don't remove your buds. What a dumb ass.

calm down buddy...I gave good advice...

dimeb8g · #6 03-16-2008, 02:14 AM

Thanks for your input about the serenade, I will try that. The alkaline water, you mean a ph of 8? Not much higher than that I would presume

dimeb8g · #7 03-16-2008, 02:17 AM

oh, and about that peroxide...I've heard that works well too. do you know how many ml/L to mix it down too?

CALIGROWN · #8 03-16-2008, 02:19 AM

Just use like 30 ml per gallon...use the cheap stuff to from the store..like a dollar I think..

upncoming · #9 03-19-2008, 06:28 PM

Sorry caligrown, I should not have implicated you in my little tirade. I hadn't heard about about using H2O2 as a spray. Sounds like it would work though. Does it burn hairs during flowering? The PH is around 8 yes.