This Is How You Kill Powder Mildew Forever!!!!!

[grapeman]

lol, ok. I wasn't sure if you were trying to lead in the other direction or what.

also, fwiw, my PM had an incredible resurgence. Really nasty. But I think my trouble may have something to do with a root aphid infestation I've recently discovered. I've dealt with them and am going back to clones only and re-treating with Eagle 20 one more time.

It is well known that weaker plants are more susceptible to diseases. So, if you do have an insect problem stressing your plants it will allow PM easier access to infection.

 

[qupee]

It is well known that weaker plants are more susceptible to diseases. So, if you do have an insect problem stressing your plants it will allow PM easier access to infection.

Ya I'm sure that's part of it. (severity of pm seemed to follow the severity of the aphids damage too).

There's also a genetic component, as my PM only infects one pheno of one strain. I ran Satori's from seed and only one developed PM (on the 3rd run, iirc). The infected Satori's have shared tents with sister Satori's and about 4 other different strains, but no other plant has shown infection ever. That one pheno was also the only one to show polyploidism.

 

[SeaMaiden]

lol, ok. I wasn't sure if you were trying to lead in the other direction or what.

also, fwiw, my PM had an incredible resurgence. Really nasty. But I think my trouble may have something to do with a root aphid infestation I've recently discovered. I've dealt with them and am going back to clones only and re-treating with Eagle 20 one more time.

Oh man.... You are reliving my experience RIGHT THIS VERY MINUTE. First, whether or not the RAs vectored the PM, they made it impossible to control. I feel that the plants likely had little 'energy' or immune response reserves with which to fight the PM. It was one HELL of a battle, the RAs and the subsequent PM.

So, much as I hate E20, it did eradicate the PM on all but one plant--The White.

Hopefully you've got the RAs eradicated, I don't think you'll have a good experience trying to eradicate or even just control the PM if they're still around, reinfecting everything.

 

[qupee]

Oh man.... You are reliving my experience RIGHT THIS VERY MINUTE. First, whether or not the RAs vectored the PM, they made it impossible to control. I feel that the plants likely had little 'energy' or immune response reserves with which to fight the PM. It was one HELL of a battle, the RAs and the subsequent PM.

So, much as I hate E20, it did eradicate the PM on all but one plant--The White.

Hopefully you've got the RAs eradicated, I don't think you'll have a good experience trying to eradicate or even just control the PM if they're still around, reinfecting everything.

Thanks, SeaMaiden.

I think I am getting the RA's under control. I started with spectracide for quick knockdown, followed with Bayer for anything not in flower, and continue with Botaniguard for everything in flower.

There has definitely been improvement on the run where I figured out it was RA's, they were 3 weeks into flower. Not total recovery, but much better than the last run.

The upcoming runs are all looking super healthy, so I have hope.

I'm on the verge of just throwing out the Satori, but I have a couple friends who like it best so far and bug me to keep it coming.

I think I mentioned somewhere else, but by coincidence I noticed applying Jaz Rose Spray (active ingredient is very similar to jasmonic acid, pgr related to stress response, iirc) caused all my visible PM symptoms to vanish. I don't believe it cured the PM, but since Jaz is used very late to promote trichrome growth, the end product looks much better this time. Last run I spent hours trimming away all the pm wrecked leaves and made hash out of most of the Satori anyway.

 

[SeaMaiden]

Since you say you're on the verge, if it's got a decent root ball, wanna try something? I read a paper on dipping the roots in hot water. 125*F for 5 minutes has been reported to be effective, highly effective, in fact.

 

[qupee]

Since you say you're on the verge, if it's got a decent root ball, wanna try something? I read a paper on dipping the roots in hot water. 125*F for 5 minutes has been reported to be effective, highly effective, in fact.

That's for aphids though right?

I think I've all but wiped out the aphids. If plant health is any indication they're inconsequential at this point.

I've got 8 Satori's about 4 weeks flipped. PM usually shows around week 5 or 6, so we'll see.

Other than those 8 I've taken em down to a lil 6 plug tray of clones. Those will be the ones getting Eagle'd again and re-cloned... Then maybe I'll run another tent full and see... can't decide yet. Got some new strain popped and want to try more, so I don't know if I'll give the Satori that one more chance.

Live is too short to waste time growing mediocre strain.

 

[SeaMaiden]

Yeah, that's for the root aphids. I'm glad you've pretty much got them eradicated.

 

[paladin420]

Since you say you're on the verge, if it's got a decent root ball, wanna try something? I read a paper on dipping the roots in hot water. 125*F for 5 minutes has been reported to be effective, highly effective, in fact.

Highly effective for fungus gnats also..as with anything like this be careful..to hot is to much...pal

 

[SeaMaiden]

I was amazed at the 125*F number in the first place, paladin. That would parboil me, for sure. The paper was specific to grapes, which are a decidedly more woody plant than cannabis and that may also play a role. But if I ever experience RAs again, and I have plants that are rooted in a container, I'll be trying that instead of using Triazicide or imidacloprid. I detested using those products, just detested it. Killed every bug in my basement.

 

[paladin420]

yeah I just use my hot tapwater and pour on top of my stones.My controler pots always start out with practially scalding..and yes I have Killed plants so be freakin careful...

storytime:
Settin up a grow i turned up the temp in this dudes water heater...repeatedly told him to warn his Misses..Nope he didn't,she got her ass burned in her next shower..And I got my ass chewed royally by her..his punk ass never said a word...alwaysmydamnfault..pal

 

[krunchbubble]

 

[Herborizer]

Still never seen PM since following Krunchbubble's advice on the Eagle20. Thank You!

 

[greenmatter]

+1 !

 

[TheGreenReaper]

Still never seen PM since following Krunchbubble's advice on the Eagle20. Thank You!

Agreed! Agreed! Agreed! Used lots of other stuff that didn't fucking work over the years.

People can hate, and judge, and whatever. Just don't spray it past week 2. The plants triple or quadruple in plant material as the ingredient is breaking down at the same time. I go 65 days on almost any strain, most over 70, so I dont worry about it.

MSDS...are you spraying the shit 5, 10 or even 30 days before harvest, shame on you? Get it on there before day 14 and there wont be any PM and I highly doubt people are going to get cancer or seven testicle disorder, or whatever. I believe there is greater danger in heavy metals from cannabis consumption then the eagle. My patients know what goes on there and they seem to appreciate the cleanliness of final flushed product.

 

[krunchbubble]

woohoo!!!

 

[SeaMaiden]

What about the issue of resistance being caused by overuse and misuse of Eagle 20? Let's let go of the environmental issues outside of creating resistance for a minute, let's go ahead and let go (amazing concept considering this might also be considered a MMJ site, but hey, there it is) of the facts regarding environmental and other effects.

Eagle 20 is known to cause resistance in PM fungi. And you don't have to use Google, all you have to do is read the label on your bottle of Eagle 20.

So, considering how lax the vast majority of cannabis growers are about damn near everything, including reading labels, how soon do folks think we'll be experiencing what apple growers, for instance, are experiencing? Nothing like those Floramite-resistant mites, either, eh?

Y'all still ain't got an answer for that, eh?

 

[420247]

http://www.umass.edu/umext/floriculture/fact_sheets/pest_management/powdery_mild.htm

The Powdery mildew fungi can develop resistance to any of the fungicides, except sulfur, listed above so be sure to alternate fungicide applications among chemical classes.

Here ya go SeaMaiden... I posted this a bunch of pages ago

 

[moodster]

i sparyed eagle 20 once in veg and never seen PM again i didnt change the enviroment or anything LOL eagle 20 rocks

 

[420247]

^^I did the same thing, but I used sulfur... Now the burner just sits around in the garage hahaha

You know whats been most effective for me? Not accepting clones from people, I never had PM till I started trading clones... Cali is full of dirty growers

 

[ojd]

gota thank krunchbuble

a year ago had pm and tried everything and nothing worked then see krunches thread and ordered some and never looked back

only needed to use it once on every plant i had around me and that was it

all gone and prety much the whole botle left just incase

this shit really works but you must spray everything even if it doesnt have signs of pm(spray all mothers litle cuts etc everything)


peace