Powdery Mildew Resistant Strains ???

[SergeantGod]

This PM is a pain in my ass, and, yes, i do everything right but it keeps coming back.

So, what strains do you know of that are resistant to PM?

So far I have first hand knowledge of -

TRAINWRECK
AK 47

Do you know of others?

Thanks

 

[humble1]

Super Silver Haze
and anything with a fair amount of SE Asian genetics should do right by you. Lots and lots of humidity around those parts and only the strong survive.
Now drop and give me 50 you lily-livered scum sucking disgrace of a soldier!

 

[bodhiseeds]

blackberry kush

 

[Hammerhead]

or just get a sulfer burner and never worry about ti again.

 

[D.S. Toker. MD]

ha ha ha aha ha ha ahahahahhh haha hhhaaa ha ha ha ha ha!!! This is trick question, right? Anyone thats ever had an infestation knows this answer:


NONE. NO STRAIN, FROM ANYWHERE ON THE PLANET CAN SURIVE PM! Ill quote Georges Cervantes. "Two words that will strike fear in the heart of every cannabis grower in the world, Powdery Mildew. It is a death sentence".

Guerill gusto from Sensi is probably the most resistance ive ever seen but even as tough as it is, it will die within a few weeks of contacting the disease.

A product called Greencure will kill Powdery mildew on contact and isnt toxic, but the problem with PM and the ability to deal with it is that its a bit like melanoma cancer. Buy the time symptoms are expressed, death is looming and unavoidable.

 

[paulo73]

That´s a load of BS!
Had a couple of PM infestations and never lost a plant to it.
Lesser yield but i´ve manage to have it under control just using a garlic&TeaTree Oil DIY fungicide.
PM sucks but is not the dead of your plants.
Peace

 

[the_extremist]

http://www.icmag.com/ic/showthread.php?t=129670

Listen to Chimera. He's a sharp dude.

 

[Andyo]

ok explain to me why!

ok explain to me why!

in 25 years of growing with up to 24 kw in se england, rainy west wales ,spain,south africa ,now thailand ive never ever had powdery mildew, ive had boytritis on outside crops .ive had a little rust in wales under lights 1st 4 wks.
But never ever powdery mildew ??? and no boytritis under lights either???

 

[paulo73]

2009 was a good year for PM in England. Not good for me as a grower
Resilient little fuc***!

 

[Flying High]

I am just finishing up dealing with a bad pm outbreak from infected clones from a friend doing me a "favor."

What I learned from this cluster f*ck of having fifty full flowering females from seed get completely douched with mildew in my big flowering room is that I had two Sour Lifesavers(out of five females) from BOG which never showed a spec of mildew throughout this ordeal, and they were in the same 4x8 tray with the plants which were covered. I was amazed every time I walked into the room and saw those two plants.

I am waiting for the SourSavers to cure so I can see if they smoke as good as they look and smell( a sweet hash like smell?). These SourSavers had more branching and were taller with thinner leaves compared to the other three which had wider leaves and thicker stems with less branching and strong apical dominance.

I am for sure running those two again(alright, I am running them all again) based on their strength and resistance to mildew as long as they are up to par in terms of medical effectiveness; if you know what I mean.

hope that helps
H

 

[SergeantGod]

The topic of PM sure sparks a lot of replies!!!

First, to humble1, yes, that's me 45 years ago, hat, ego, bullshit voice, et al. SSH, we are developing Super Lemon Haze, so is it a SE Asian genetic?

I do the suphur burner, and it helps. We manage our PM but do notice that the AK47 does NOT get it, so I know some strains don't get it.

We have a 40+ plant garden so it is a lot to maintain anyway without the PM.

Thanks, Your Appreciative DI

 

[Nicol Bolas]

Much respect to Powdery Mildew.

Seriously.

PM is a fascinating organism. The only fungus that can 'germinate' without actual droplets of water - while other fungal pathogens require a period of time where liquid water is actually on the plant, PM can get a foothold extracting moisture from the air which is why it is so tough compared to others. It is sad when one's favorite plant is devoured, but every pathogen is an opportunity to learn - untroubled grows give us weed but not knowledge. I don't know what strains will resist PM in your particular environment, but knowledge is power - read the research papers - they seem dense at first, but really its just because they use so many latin words - to paraphrase Sun Tzu, understand the organism and your growroom and you have nothing to fear.

What is the strain of PM that attacks cannabis? what do we know about it?

 

[humble1]

I have multiple 40+ plant gardens so I understand your plant management woes.
How often do you sulfur and what style of sulfur burner do you have?
I used the old fashioned ones with ceramic bulbs and the cheapo ones with what amounts to a small hotplate coil underneath.
Neither of those made me very happy.
Then one day I was chatting up a more experienced grower and he told me to get the silver burners that are actually controlled to the proper vaporization point and no higher. The heating element on these more closely resemble a metal plate and underneath there should be wires connected to a relay and control module. Around 150 bucks, but you'll never wonder why once you have one (or more than one in my case). Only vapor, no more thick sulfur smoke. Just awesome. I burn mine twice a week in veg for ~ 8hrs with all fans turned off and haven't seen a speck of pm except on new plants that are gifted to me from less conscientious growers.
I don't grow GH genetics because Arjan is an unscrupulous greedhead, but I believe Super Lemon Haze should be great for your needs. If I remember correctly it's SSH x Laos, so you're set on that front.
Good luck in the selection process!

 

[Hammerhead]

SLH= Lemon Skunk x Super Silver Haze

If you are still seeing PM when using a burnwer you are not burning long enough or there is a problem with the Sulfer.

 

[B. Friendly]

Buddha's Cheese. had it in a room with some purple kush that got mildew all over them, but the Cheese did not have a spot of mildew at all. Both where side by side in the same room.

 

[VenturaHwy]

in 25 years of growing with up to 24 kw in se england, rainy west wales ,spain,south africa ,now thailand ive never ever had powdery mildew, ive had boytritis on outside crops .ive had a little rust in wales under lights 1st 4 wks.
But never ever powdery mildew ??? and no boytritis under lights either???

My experience is similar, I saw it twice under humidity domes (cloning) on only one strain. When it came out the PM went away.

Can you guys that get PM tell me whether you exhaust continuously and use heat at night? I am really curious why it does not affect me.
Now I have grown the same strain for many years so.....

 

[SergeantGod]

I exhaust 24/7 and run 12 fans creating a lot of air movement.

My temps are 70-82 ( and yes, we add heat during the dark period) and humidity is 25-45.

I've raised my minimum temp to 73 hoping that will help

SG

 

[Hammerhead]

my room was like that ^^^ lots of air movement and good temp control. I never had a problem with PM. The fans we use are king of fans and will kill the plants if pointed at them so we point them up at the ceiling so it comes down the walls. It's very turbulent in there

 

[D.S. Toker. MD]

Its not BS!. Let me repeat. NO CANNABIS STRAIN ON THE PLANET CAN SURVIVE POWDERY MILDEW!!! Chimera is right on nearly all accounts. Once the disease is visible the plant is so infected that death is unavoidable, period. The only caveat i would add to Chimera is that he infers that a cure is possible. Possible perhaps, but unlikely without drastic measures.

He is right in that there are products that will kill the PM, but the effective ones are dangerous and they parallell such therapies as radiation and chemotherapy in humans. Like those treatments, cures for PM are are extreme measures aimed at thwarting emminint death. Id be willing to bet that there isnt a single professional grower that would suggest any other outcome.

Thank goodness PM is a rare condition in cannabis, unlike botryits. In many years of growing ive only seen 2 outbreaks, but every plant in the area was killed

Show me a cannabis plant with PM, ive got $500 double or nothin that says its a dead plant. No exceptions

 

[theJointedOne]

found pm on many clones ive gotten. i just wiped it off and planted them, never saw the pm again and harvested a couple elbows off her as well. I think when i harvested there was like two one inch pm marks visible on 2 of the fan leaves....but by no means did it die from the pm i saw on it as a clone. this is outdoors though.

and i have seen some bad pm outside too, last year a noobie grower planted his stuff way to close and watered too much. plants were big but he lost a few to pm andlots of the ones that didnt die from it still were totally infested with it. I can beleive this guy actually sold it all knowing it was bad.

ha you owe me 500 big ones....an ounce will do as im about out of medicine...here is tat plant that as a clone had pm..this pic is a month before i chopped it...pm me with where and when you want to meet so i can get that ounce