Powdery Mildew - What’s your hot take on treatment?

Jjgrow420

Well-Known Member
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LOL! I just got confused.

If memory serves it was around $1,700 USD, with exchange and tax it was around $3,000 CAD.

You can get a quote from this page - black box with white writing on the left side of the page.


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Hm too rich for my blood at the moment. Hobbies are expensive and I have way too many (according to my wife)
I'll put it on the wish list though.
 

DMChiz

Well-Known Member
I’ve used Lost Coast for the last few days and it seems to be knocking it back. Agreed that it’ll be multiple applications now that we’re getting towards cooler weather, but worth a shot
 

mandocat

Well-Known Member
Hey gang,

Like every year, looks like I’ll lock horns with Powdery Mildew again. Yes, air flow is good (I’m outdoors) and humidity is typical for a Toronto summer.

I’m also about 4 weeks into flower. This said, I’ve heard it all and likely used some combination over the years. What I haven’t found is a solid assist in the remedy. I understand that once you have it, it ain’t going away, so what’s the best treatment?

Feels like Potassium Bicarbonate might be my safest bet. It’s only on one of the six plants, but we all know….

Thanks team. Appreciate the feedback!
Zerotol HC, if you can get it. No residue, can use up to the moment of harvest. Haven't had any plant damage issues in 5 years of using it on my outdoor plants, it excells against powdery mildew! https://biosafesystems.com/product/zerotol-hc/
 

DMChiz

Well-Known Member
Zerotol HC, if you can get it. No residue, can use up to the moment of harvest. Haven't had any plant damage issues in 5 years of using it on my outdoor plants, it excells against powdery mildew! https://biosafesystems.com/product/zerotol-hc/
Yeah, that’s a no-go up here. Approved for Commercial Agriculture but not Residential use. No ZeroTol, Arber, Regalia etc. It’s home made or Lost Coast here in ‘ol Canadia ;)
 

Jjgrow420

Well-Known Member
I’ve used Lost Coast for the last few days and it seems to be knocking it back. Agreed that it’ll be multiple applications now that we’re getting towards cooler weather, but worth a shot
Lost coast, dr zymes. Same diff.... Citric acid, enzyme, wetting agent. Dr zymes way cheaper. I think lost coast has peppermint extract that's the only diff.
 

Jjgrow420

Well-Known Member
Yeah, that’s a no-go up here. Approved for Commercial Agriculture but not Residential use. No ZeroTol, Arber, Regalia etc. It’s home made or Lost Coast here in ‘ol Canadia ;)
I was getting dr zymes from indoor growing Canada. They don't seem to have it anymore tho? I'm sure it can still be found somewhere
 

rijkmus1

Well-Known Member
I am going to test regalia and zertol next year. I am considering using both simultaneously. I also have to figure out if the fungicide regalia is subject to a tolerance buildup. I get powdery mildew ever year. I had some success delaying it last year with purecrop. I also started using alcohol to clean my scissors and pruners. I grow outdoors and I really don't think that powdery mildew can be stopped outdoors completely ever with any treatments only delayed.
 
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thumper60

Well-Known Member
I am going to test regalia and zertol next year. I am considering using both simultaneously. I also have to figure out if the fungicide regalia is subject to a tolerance buildup. I get powdery mildew ever year. I had some success delaying it last year with purecrop. I also started using alcohol to clean my scissors and pruners. I grow outdoors and I really don't think that powdery mildew can be stopped outdoors completely ever with any treatments only delayed.
Thats the key here hold it off as long as possible seems once I get the cool nights mid 40s pm just seems to stop spreading
 

mandocat

Well-Known Member
I am going to test regalia and zertol next year. I am considering using both simultaneously. I also have to figure out if the fungicide regalia is subject to a tolerance buildup. I get powdery mildew ever year. I had some success delaying it last year with purecrop. I also started using alcohol to clean my scissors and pruners. I grow outdoors and I really don't think that powdery mildew can be stopped outdoors completely ever with any treatments only delayed.
Zerotol will take care of it! I have had friends spray it every other day with no ill effects, once a week is about the most I have had to do and I have even washed freshly harvested bud in it so there were no surprises in the curing jars later on.
 
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