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Offlineyellownotepad
Pharmaceutical Agriculturalist
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Registered: 06/22/08
Posts: 1,702
Last seen: 4 years, 6 months
i got hella powdery mildew in my veg room
    #447299 - 07/17/10 12:33 AM (6 years, 4 months ago)




fuuuuuuuuuuuuuuuuuuuuuuuu


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OfflineMushrooMan420
Muncher


Registered: 12/23/09
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Loc: CA
Last seen: 4 years, 6 months
Re: i got hella powdery mildew in my veg room [Re: yellownotepad]
    #449287 - 07/21/10 02:55 PM (6 years, 4 months ago)

sulfur burner or Chemical spray is cheaper.


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Offlineyellownotepad
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Re: i got hella powdery mildew in my veg room [Re: MushrooMan420]
    #450152 - 07/22/10 09:29 PM (6 years, 4 months ago)

picked up azamax and green cure to use on everything, shit has spread to the flowering room

:feelsbadman:

where's magash? help me master magash


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Offlinemuse42
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Registered: 04/21/10
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Re: i got hella powdery mildew in my veg room [Re: yellownotepad]
    #450305 - 07/23/10 03:01 AM (6 years, 4 months ago)

So I have a few lower leaves that have clusters of small raised white spots on them.  Looks very similar to your pic, just not nearly as many.  I rub my finger on the spots and they don't rub off.  Does Powdery mildew rub off or am I dealing with something else? The name Powdery suggest it would wipe off.


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It looks like it's going to be another Gravity Bong type day...



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Offlineyellownotepad
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Re: i got hella powdery mildew in my veg room [Re: muse42]
    #450309 - 07/23/10 03:26 AM (6 years, 4 months ago)

dunno, my PM rubs right off like powder.


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Offlinemuse42
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Re: i got hella powdery mildew in my veg room [Re: yellownotepad]
    #450310 - 07/23/10 03:27 AM (6 years, 4 months ago)

Well it rules PM out for me.  Goodluck.


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It looks like it's going to be another Gravity Bong type day...



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InvisibleAcidic_Sloth
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Re: i got hella powdery mildew in my veg room [Re: yellownotepad]
    #450314 - 07/23/10 04:30 AM (6 years, 4 months ago)

Magash would most likely recommend you pick up a sulpher burner i think. they are quite awesome, and work on things from mites to mold and bud rot.

unfortunately they stink to high heaven.


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OfflineMushrooMan420
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Re: i got hella powdery mildew in my veg room [Re: Acidic_Sloth]
    #451121 - 07/25/10 01:28 PM (6 years, 4 months ago)

And cost a lot!


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OfflinegeokillsA
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Re: i got hella powdery mildew in my veg room [Re: muse42]
    #452893 - 07/29/10 07:07 PM (6 years, 4 months ago)

Quote:

muse42 said:

So I have a few lower leaves that have clusters of small raised white spots on them.  Looks very similar to your pic, just not nearly as many.  I rub my finger on the spots and they don't rub off.  Does Powdery mildew rub off or am I dealing with something else?




You may have the beginnings of a mite infestation.  Read this.



To yellownotepad:

Never had to deal with powdery mildew thankfully, but for the indoor grow environment, I understand that it can be quite detrimental.  Heavily contaminated portions of the plant should be discarded immediately, temperatures kept above 76°F, humidity below 50% rH, maintain good air circulation and high light intensity.

"Serenade" and "Exel LG" brand fungicides may be affective in treating these outbreaks directly.  A homeopathic remedy indicates use of a saturation mix of baking soda and water, which when sprayed on the leaf will dry to a fine powder, changing the surface pH of the leaf to 7 which in turn will not allow powdery mildew to grow.  It is also advised to reduce Nitrogen fertilization if possible.

Good luck!

PS.  Could you post a few more pictures of your mildew situation?  I would like to use them in a main site document I will be preparing on dealing with this problem.


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OfflineMud
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Re: i got hella powdery mildew in my veg room [Re: geokills]
    #453347 - 07/31/10 01:09 AM (6 years, 4 months ago)

What do you have for venting for the size of your room? I beat the pm with 3 6" inline fans for fresh air and a 12" exiting in a 1200 cubic foot room. It is almost double what I had originally had for air exchange but not a spot of mold since. I was planning on doing the greencure thing but didnt need to.

Mud


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Offlinemuse42
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Re: i got hella powdery mildew in my veg room [Re: Mud]
    #453366 - 07/31/10 01:40 AM (6 years, 4 months ago)

Quote:

You may have the beginnings of a mite infestation.



thats what I thought but I have not seen any signs of bugs


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It looks like it's going to be another Gravity Bong type day...



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OfflinegeokillsA
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Re: i got hella powdery mildew in my veg room [Re: muse42]
    #454010 - 08/01/10 06:00 PM (6 years, 4 months ago)

The first time I had to deal with mites, I witnessed the visible stippling (dotted leaves) without being able to identify the mites themselves.  They can start out very small. My near-sight visual acuity is better than average and I refused to admit I had a mite problem until the infestation had progressed and those buggers were getting fat enough for me to see very clearly!

If the stippling on your leaves is getting worse, take a preventative measure by removing heavily stippled leaves and buying a pyrethrin based solution, then wetting a soft cloth or towel with it and individually washing each leaf of the plant by using two fingers to gently squeeze the saturated cloth around the base of the leaf, then gently pulling toward you to wash it and remove any of the potentially unwelcome residents.


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Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

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