Please Help Powdery Mildew Taking over all my plants Outdoor

curious2garden

curious2garden

Well-Known Mod
Staff member
Dboybudz said:
Sorry to bug ya I was worried that was to strong because says all applications only 1 ounce a gallon.
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After Marrone's merger they removed their small tank mixing instructions however you can read them here:
morr.com

Marrone Bio Innovations Regalia CG Biofungicide

Marrone Bio Innovations Regalia CG helps plants in developing stronger genes in order to be more sustainable to diseases like Fusarium, Botrytis, powdery mildew etc.
morr.com morr.com

4 tbsp/gallon for foliar is 60 ml/gallon which is 2 ounces since 1 tablespoon is 15 ml and I'm calling an ounce 30 ml for ease of math when it's actually 28.5 ml/oz, hope that helps
 
Dboybudz

Dboybudz

Well-Known Member
curious2garden said:
After Marrone's merger they removed their small tank mixing instructions however you can read them here:
morr.com

Marrone Bio Innovations Regalia CG Biofungicide

Marrone Bio Innovations Regalia CG helps plants in developing stronger genes in order to be more sustainable to diseases like Fusarium, Botrytis, powdery mildew etc.
morr.com morr.com

4 tbsp/gallon for foliar is 60 ml/gallon which is 2 ounces since 1 tablespoon is 15 ml and I'm calling an ounce 30 ml for ease of math when it's actually 28.5 ml/oz, hope that helps
Click to expand...
Thank you maybe it will control a lot better now I'll up it.
 
compassionateExotic

compassionateExotic

Well-Known Member
curious2garden said:
After Marrone's merger they removed their small tank mixing instructions however you can read them here:
morr.com

Marrone Bio Innovations Regalia CG Biofungicide

Marrone Bio Innovations Regalia CG helps plants in developing stronger genes in order to be more sustainable to diseases like Fusarium, Botrytis, powdery mildew etc.
morr.com morr.com

4 tbsp/gallon for foliar is 60 ml/gallon which is 2 ounces since 1 tablespoon is 15 ml and I'm calling an ounce 30 ml for ease of math when it's actually 28.5 ml/oz, hope that helps
Click to expand...
Thats saying at 2 gallons, not 1 gallon

IMG_5616.png
 
curious2garden

curious2garden

Well-Known Mod
Staff member
DCcan said:
It's 4 tablespoons/gal when disease is present or likely.
2 gal refers to per 1000 sq ft.
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Exactly and one is dilution rate the other is application amount. Anyway the time I had recurrent PM in my Bodhi Lucky Charms I was using 1 oz/gal and it didn't really knock it back. I found the small tank mixing and doubled it to 2 oz/gal and it knocked it back and got me to harvest, (seeded crop of genetics I needed). The plants didn't seem to notice the difference.
 
T

Tmik

Member
Lost Coast Plant Therapy will cure it with one treatment. It’s safe through flower.
spray the entire plant, top and bottoms of leaves and all the stems. Also the top of the dirt.
turn off the light until the plant dries after spraying.
 
BrassNwood

BrassNwood

Well-Known Member
Simple high PH (9) water is enough to disrupt the cell wall and kill the visible part of the powdery mildew infection.
1 tablespoon of Potassium Bicarbonate or Sodium Bicarbonate (household baking soda) to 1 gallon of water.
Drench spray once a week seeding to week of harvest. It will control the PM used weekly.
Being just water it is the lowest risk agent possible.
 
Farmer's Hat

Farmer's Hat

Well-Known Member
BrassNwood said:
Simple high PH (9) water is enough to disrupt the cell wall and kill the visible part of the powdery mildew infection.
1 tablespoon of Potassium Bicarbonate or Sodium Bicarbonate (household baking soda) to 1 gallon of water.
Drench spray once a week seeding to week of harvest. It will control the PM used weekly.
Being just water it is the lowest risk agent possible.
Click to expand...
Ive tried this baking soda method and it does work. Alternating between baking soda water and milk spray definitely controlled the pm. However, the pm did not go away until I defoliated the big bush and created better airflow.

Good luck
 
Dboybudz

Dboybudz

Well-Known Member
DCcan said:
It's 4 tablespoons/gal when disease is present or likely.
2 gal refers to per 1000 sq ft.
Click to expand...
I sprayed yesterday at 2 ounces a gallon then two hours later showers came through, should I wait 6 days to spray again or reapply tomorrow. Thanks bud
 
DCcan

DCcan

Well-Known Member
It causes an immune response in the plant, let a few days go by. It just dripped into the roots.
Stronger doses when plant has PM will help keep the response activated.
 
thumper60

thumper60

Well-Known Member
Tmik said:
Lost Coast Plant Therapy will cure it with one treatment. It’s safe through flower.
spray the entire plant, top and bottoms of leaves and all the stems. Also the top of the dirt.
turn off the light until the plant dries after spraying.
Click to expand...
Yummy soybean oil in the buds. Like everything mentioned here there is no cure for PM all we can do is prevent it. Before you go off I have tried lost coast it does not cure Pm it barely held it at bay I have moved on to zero Tol an very much liking what i see when it comes to PM an its very clean no oils! I wash my outdoor bud in it with no ill effects to the crop.
 
BrassNwood

BrassNwood

Well-Known Member
Flash63 said:
in my 30+ years of growing I’ve never ever won the war against pm…it’s the absolute worst thing to happen in my garden
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PM and Caterpillars are the only things I have to fight. Since I have to apply BT weekly for the caterpillars once flower starts in early Aug I know the PM isn't far behind and start with the high PH water for the PM. I have to stay on top of both weekly applications as even 1 missed week can have bad results down the line.
 
Hobbes

Hobbes

Well-Known Member
.

I had 3 grows spew PM one grow after another. I picked up an AirROS machine and it cured my problems.

airrosshield.com

Home - AirROS by SAGE Commercial Air & Surface Purifiers

The best commercial air and surface purifiers for cannabis grow rooms. Destroy mold, pathogens and odor control products. Contact us today to learn more about how our product can help you stop pathogens including powdery mildew, botrytis and aspergillus!
airrosshield.com airrosshield.com

.
 
B

bananahaze64

Active Member
cannabiscrusader said:
The Arbor is great as a preventative. Sulfur in veg is the way to go. I just started spraying my outdoor with sulfur twice before flower weather it needs it or not. Too late for sulfur now, and you'll be fighting a long battle with just the arbor. Grab a gallon of 500ppm hypochlorous acid. Cut it 1:1 with distilled water. This will kill any mold/mildew or virus on contact. Safe to use up until harvest. I just spritzed mine yesterday to combat some septoria.

They also sell generators for $14 so you can make your own with table salt and distilled water. I use my dehumidifier water.

View attachment 5419580
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I just brought some of this , is this safe to use in flower ? Thanks
 
cannabiscrusader

cannabiscrusader

Well-Known Member
Yes it is. Just dilute it 1:1 with distilled water. Dehumidifier water works great. I sprayed my outdoor twice already, not 1 brown pistil
 
M

mandocat

Well-Known Member
bananahaze64 said:
Hi,
Im pretty sure its powdery mildew what can I do It seems to be getting more and more my plants are just starting to flower im not sure what I can do to get rid of it, can I spray something yet in early flower or what do you think ? will it take over and ruin my crop ? Please help
Thanks
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Zerotol HC, been using this product for years, can use up to the moment of harvest, no residue! Basically supercharged hydrogen peroxide, been a life saver for my outdoor. https://biosafesystems.com/product/zerotol-hc/
 
Dboybudz

Dboybudz

Well-Known Member
DCcan said:
It causes an immune response in the plant, let a few days go by. It just dripped into the roots.
Stronger doses when plant has PM will help keep the response activated.
Click to expand...
Hey is today ok to reapply arber? Rained Sunday two hours after applying then some showers on Monday. I can see a bunch of small spots now. Also instead of mixing a gallon with 2 ounces I do half gallon with 1 ounce because I end up throwing it out only needed for a couple.
 
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