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| Forums > Marijuana Growing > Growing in Greenhouses > How to kill powdery mildew? | ||
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#31 | |
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ABF(Always Be Flowering) - Founder
Join Date: Sep 2008
Posts: 2,146
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PM is something that you want to prevent before it happens. Improving your environment, having good air movement, and making sure the plants are properly spaced will all help. There are plenty of products you can use as a preventative in the future. Sulfur burners in veg help. There are also products such as Oxidate 2.0, and Regalia which are biofungicides. The positive part about biofungicides is that they are not like Eagle-20. The plants don't build up a resistance to them, and they're not super toxic. Trilogy is a neem based product which is supposed to help. Subtilex NG is another product.
I'm always doing research on new products I can rotate for the preventative regime. I'm especially interested in the biofungicides because of their method of operation. https://certisusa.com/pest_management...e_miticide.htm Here's a list of products which are approved in Oregon for all kinds of cannabis issues. https://www.oregon.gov/ODA/shared/Do...deCannabis.pdf
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ABF - Always Be Flowering {Abja Roots Flower Pictures}https://www.icmag.com/ic/showthread....29#post6688829 Quote:
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3 members found this post helpful. |
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#32 |
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Senior Member
Join Date: Nov 2012
Location: Hold your hand up...right about there!
Posts: 1,975
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I have seen super strains of PM on new clones that laughed at high doses of eagle 20, I ain't a kidin'!
So I started in on a natural oil rotation and finally killed it, I thought I was gonna scrap it all and start new. Moral to the story is Rotation and diligence....no slackin' Try not to use the same product twice. Start clones with eagle 20 then switch to spinosad then rosemary oil then peppermint oil ect. Oh, be careful with oils during lights on.....Burn city.
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Vote no to legalize cannabis or else! HydroBuddy Nute calculator Ins and outs of Pythium OVERGROW FAQ SEEDPAC Politically Active Cannabis Fighting for Michigan's Medical Marihuana Patients and Caregivers rights I am free because I know that I alone am morally responsible for everything I do. I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do. |
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#33 |
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Senior Member
Join Date: Jun 2014
Location: EAST COAST
Posts: 1,196
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ATAK works pretty well. sprayed a few plants.. root flooded them.. and I haven't seen pm on them at all.. keep plants super heatlhy and u should have pm after atak
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#34 | |
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Newbie
Join Date: Oct 2016
Location: The Emerald
Posts: 6
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Quote:
Like sulfur is much better , ... Seriously why don't you get a 50lb bag n just dust your buds with it like vineyards do , then suck loads down your throat w every hit. good thinking boy toy...ha - Yum sulfur hits and P Rone Penice your favorite . Blind leading the blind rt there. 2 solutions: Enzyme products work amazingly ....as well as recolonizing the leaf surface with beneficial microbes. Don't spray your buds w oils or sulfur or poison. |
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#35 |
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Newbie
Join Date: Aug 2013
Posts: 49
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Do not use eagle 20. The product is not for cannabis production. Tests have shown this product stays in the flower way too long.
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1 members found this post helpful. |
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#36 |
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Member
Join Date: Feb 2016
Posts: 73
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Eagle 20 is illegal on tobacco for a reason.
Cancerous when burned/smoked. Studies showing managably short half life are based on acres of fields in certain soil being broken down by the elements Conditions are different indoors or even in greenies. Eagle 20 gets concentrated heavily in dabs. I believe that I read an article by a testing company that said that eagle 20 gets concentrated a couple hundred times as strong in concentrates. So many good natural options to use instead. |
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2 members found this post helpful. |
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#37 |
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Senior Member
Join Date: Dec 2008
Location: In the hills mang....i DEEED it...
Posts: 10,100
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sm90 does a decent job at washing off visible spores. but I notice PM always pops up in parts of the canopy that have little light and air circulation. By defoliating heavily and getting more air movement definitely helps cut down. Once spores show up you have to maintain 3 day sprays of high PH water, sm90, milk, h202, whatever your choice just keep it organic.
Also, the night time humidity spike is THE biggest cause of PM. As soon as those lights go off the plants perspire and humidity can bump up 15-20%. I added night time air dumps to bring in mass amounts of dry air at night on top of the regular dehueys and AC. Regalia works decent but is not a sure fire thing. 3 sprays in flower with 2 root drenches and still saw some spores here and there pop up on lower canopy. But the tops were all left nice and clean. |
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#38 |
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Member
Join Date: Mar 2015
Posts: 67
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Preventive or not, get to the roots with systemic treatment. Product called Forge sp by blacksmith bioscience works wonders. Beneficial microorganism streptomyces that help fight fungal disease. Plants love it. Anything to boost your plants health will help down the road to keeping disease away.
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4 members found this post helpful. |
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#39 |
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Newbie
Join Date: Feb 2014
Posts: 4
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Potassium bicarbonate. Lowers the pH of the leaf so that the mold has trouble growing. It's not systemic so you have to cover everything. The good thing about it is that it's 20 bucks for a kilo and it's like a tablespoon per gallon or something also its organic. It's green cure min use the water.
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1 members found this post helpful. |
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