StonedGardener
Well-Known Member
Regalia CG is a preventative not a killer. It's recommended before PM pays a visit
Powdery mildew
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StonedGardener
Well-Known Member
StonedGardener
Well-Known Member
You may be on right track using silica. An article on the web maybe very helpful to anyone with PP. It's called "What to do about powdery mildew" maximumyield.com.
StonedGardener
Well-Known Member
Looking at the data, composition, MSDS specs., etc., it appears safe ( I'm a skeptic). Indoor use is tricky......don't be breathing that! By the way, if you did not know, this product is a preventative vs. a curative.......you may like web article "What to do about powdery mildew" maximum yield.com. I'm battling this shit too. I'm trying heat treatments at the moment. I'm spraying/misting water often also because PM spore can't germinate on wet leaf. I'm rambling, apologies.
Hobbes
Well-Known Member
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I got powdery mildew 3 grows ago, came in on a clone. I tried several methods of killing the stuff and nothing worked until I bought a Reactive Oxygen Species generator.
My current grow was showing PM spots on the lower leaves, I'd pluck them and the spots would show up on another leaf. Nothing worked, I had my AirROS hooked up but my airflow was poor at the bottom of my plants.
I installed a monkey fan in each corner, below the canopy, one for each of the four plants. The white PM spots went away over night and I haven't seen them in 3 weeks now.
They're expensive but if you're serious about getting rid of your PM I'd recommend one. Renfro has a thread about them, where I learned of them.
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I got powdery mildew 3 grows ago, came in on a clone. I tried several methods of killing the stuff and nothing worked until I bought a Reactive Oxygen Species generator.
My current grow was showing PM spots on the lower leaves, I'd pluck them and the spots would show up on another leaf. Nothing worked, I had my AirROS hooked up but my airflow was poor at the bottom of my plants.
I installed a monkey fan in each corner, below the canopy, one for each of the four plants. The white PM spots went away over night and I haven't seen them in 3 weeks now.
They're expensive but if you're serious about getting rid of your PM I'd recommend one. Renfro has a thread about them, where I learned of them.
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Control odor & sterilize your room air + surfaces 24/7 + eliminate PM
Ok folks, hear me now and thank me later. This is for the more commercially minded growers out there who want to control odor AND prevent any issues with mold / mildew / bacteria. https://www.airrosbysage.com/ This device uses a sensor to maintain proper levels of ozone and 7 different...
www.rollitup.org
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PJ Diaz
Well-Known Member
Airflow is definitely key in fighting PM. I have 4 fans on the floor of a 4x4 tent, 2 blowing up and across the center, and 2 more at opposite corners, pointed up and towards the wall to create a vortex type breeze.
Chunky Stool
Well-Known Member
Don't forget the CHEPA™
What did you accomplish today?
I bought the same tire that came stock with the car and it wasn't cheap. I always try to buy tires as sets of fours but if I can't I buy them in pairs. If it's because of some type of damage my warranty on the tire doesn't cover I retire the partly used tire to full spare. I hate donut spares...
www.rollitup.org
SnoopyDoo
Well-Known Member
Also a Immunox fan.
SnoopyDoo
Well-Known Member
You should be using it before you flip. You gotta go organic once flowering starts. Rosemary is a good organic essential oil for insects or fungus.
Budzbuddha
Well-Known Member
Look for BANISH ( Geraniol ) it will kill and inhibit Powdery Mildew ....
PJ Diaz
Well-Known Member
It will still be there come harvest time, even if you only treat the plant once as a clone. Half-life means that half of the pesticide is still present come the half-life time (64-days in this case). In 64 more days, it's half that again, so even a plant you veg for 2 months and then flower for two more will still have 1/4 of the residual systemic pesticides.
Chunky Stool
Well-Known Member
I've recently learned a lot about PM... grr
Is it "systemic"?
No, but it feels that way.
By the time you actually notice PM, the spores are already everywhere. So yes, it looks like the infection has moved through the plant to a different spot, but that's not what actually happens. It's just a new lesion that was started by spores on the leaf surface.
AND (it gets worse)
Plants that have PM infections are in a weakened state so they are more vulnerable and can be overwhelmed. Watch for other pathogens and pests. Bugs are drawn to weak plants.
Infected plants will also show stunted growth until the infection is gone but they can recover.
The best way to sterilize the area is with copious quantities of ozone. Remove everything that breathes air, then nuke it.
This will get into all the nooks and crannies. Leave everything running, fans, dehumidifier, etc.
It also kills pests like thrips, gnats, mites, etc.
If you're in late flower, chop em and hope for the best. Then treat any veg plants with K bicarb and neem (alternate to prevent tolerance).
Older plants can be given regalia to strengthen them and biologicals like serenade and southern ag GFF to colonize the leaves with benes.
Be careful out there...
Is it "systemic"?
No, but it feels that way.
By the time you actually notice PM, the spores are already everywhere. So yes, it looks like the infection has moved through the plant to a different spot, but that's not what actually happens. It's just a new lesion that was started by spores on the leaf surface.
AND (it gets worse)
Plants that have PM infections are in a weakened state so they are more vulnerable and can be overwhelmed. Watch for other pathogens and pests. Bugs are drawn to weak plants.
Infected plants will also show stunted growth until the infection is gone but they can recover.
The best way to sterilize the area is with copious quantities of ozone. Remove everything that breathes air, then nuke it.
This will get into all the nooks and crannies. Leave everything running, fans, dehumidifier, etc.
It also kills pests like thrips, gnats, mites, etc.
If you're in late flower, chop em and hope for the best. Then treat any veg plants with K bicarb and neem (alternate to prevent tolerance).
Older plants can be given regalia to strengthen them and biologicals like serenade and southern ag GFF to colonize the leaves with benes.
Be careful out there...
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manfredo
Well-Known Member
Sorry you are experiencing this...Very sorry!! It is soul crushing!! The good news is you will be a better grower for it in the long run!!
For me, even the use of an ozone machine didn't work...and I learned ozone can be very dangerous...It can damage your lungs so be careful and research it first. Now I use my ozone machine for cleaning smelly vacant rentals.
Regalia was my savior, and I use it at a very young age...seedlings and/or week old or clones of that age get treated and thrive...I also use Marrones Venerate for pests, also starting at 1 week of age.
Anything already infected, throw it away...If they are in flower and you want to try to save them, you can wash the buds at harvest with peroxide
I think it costs me about $10 a week for Venerate, Regalia and silica, and makes a great preventative ....andf the Venerate and Regalia are certified organic, if that matters to you.
JimmiP
Well-Known Member
I second the potassium bicarbonate! Mix it with silica if you want too.
Chunky Stool
Well-Known Member
You're right about ozone, that's why it's important to remove anything that breathes air before running it.
Since I was going to chop anyway, I blasted my plants with O3 before spraying with "Freq Wash" that I picked up on clearance for $5/gallon.
Fingers crossed.
Right now I'm running an experiment with my seedlings that were exposed to PM. (I know that some got infected because I saw it on the stems.)
If they were my homegrown seeds I'd just toss em and start over.
Unfortunately, I've got at least $300 invested and would love to save them if possible.
Yesterday I sprayed with K bicarb.
Tomorrow I'll spray with neem.
They are very small so I haven't given them regalia but may do a half dose when they are ready to be fed again.
Got three CHEPA™ filters running so hopefully any new spores will be caught before they spread.
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manfredo
Well-Known Member
You can actually dip your seedlings in a Regalia mix...mix up the normal 30 ml per gallon, and submerge them red cup (or whatever) and all for like 10 seconds before transplanting . You might save them...Good luck!!
SnoopyDoo
Well-Known Member
Yeah, but it won't be in the buds.
Nevertheless, I prefer mixing up my own essential oil cocktails, but that works more as preventative measure. Sometimes when something is well established in the garden, you have to take more serious steps.
SnoopyDoo
Well-Known Member
I'll have to give Regalia a shot next time I'm having issues.
PJ Diaz
Well-Known Member
Yes it absolutely will. It's a systemic pesticide.