powdery mildew

[JackTheGrower]

I found a link on using milk on powdery mildew.

I did a quick search here and didn't see a post on milk..

http://www.gardenguides.com/pests/tips/powderymildew2.asp


Jack

 

[quadracer]

yeah you want to be sure and use skim milk when you do this. And if you are growing inside, pm is usually a result of poor air circulation or other environmental factors. Curing the problem usually requires a bit of environmental tweaking as well.

 

[Clackamas Coot]

Use of Baking Soda as a Fungicide

This article also discusses potassium bicarbonate which is the basic component of several commercial products (Milstop, Remedy, et al) and consumer products (Green Cure)

 

[headimonster]

DONT USE MILK! - its nasty IMO - - - i go with Dr. DoRights in flower with Penetrator and Penetrator and Zone in Veg. Kills it...thanks to mark6699331 for the info with pene/zone, its dutchmaster product btw, and i usually order Dr.DoRights from the website,...

 

[Clackamas Coot]

Dr.DoRights

Dr.DoRights

DONT USE MILK! - its nasty IMO - - - i go with Dr. DoRights in flower with Penetrator and Penetrator and Zone in Veg. Kills it...thanks to mark6699331 for the info with pene/zone, its dutchmaster product btw, and i usually order Dr.DoRights from the website,...

It had better be very, very cheap based on the ingredient list that is found in their MDSS.

Their products are banned in several states primarily over unsubstantiated claims made on their product's label. Same problem that SuperThrive has bound itself in around the US and the world.

According to the MDSS (Material Data Safety Sheet) the product sold as Dr. DoRight's Pest Control contains the following:

Sodium Lauryl Sulfate (basic component of soaps & shampoos)
Lemongrass oil
Garlic Oil
Cedar Oil
Thyme Oil
Clove Oil
Rosemary Oil
Hydrogenated Palm Oil
Filtered Water
Coconut Oil
Glacial Acetic Acid (a trivial name for water-free acetic acid)
Sodium Salt
Almond Oil
Citric Acid
Palm Oil

Smoke meets mirror perhaps?

HTH

CC

 

[Dirtfinger]

Milk works great. I've used it successfully and so have friends of mine. I use a 10-15% solution of skim milk in water - 4oz in a quart spray bottle. The milk is a good foliar feed as well, containing beneficial mineral salts and amino acids.

Of all the things I could use for PM (that actually work) milk is the least toxic and most beneficial to the plant. It' also cheap and simple, maybe that's why fan boys of expensive alternatives are always bashing it.

 

[Crazy Composer]

Wanna be done with the Powdery Mildew once and for all? Purchase a sulfur burner and use it. I have used sulfur late in a crop and never tasted the least bit of a hint of sulfur in the herb.

Funny story... I used the sulfur burner any time I saw a resurgance of PM, it worked every time, but the PM would be back within a month or so.

Well, once day I accidentally left the sulfur burner running, and it ran for 3 straight days. That was almost a year ago, and the PM has never showed up after that 3 day barrage. DEAD. GONE. My sulfur burner just hangs there, unused, waiting for the next battle.

 

[Vorsprung]

DONT USE MILK! - its nasty IMO - - - i go with Dr. DoRights in flower with Penetrator and Penetrator and Zone in Veg. Kills it...thanks to mark6699331 for the info with pene/zone, its dutchmaster product btw, and i usually order Dr.DoRights from the website,...

my first two grows i was battling powdery mildew constantly. thanks to mark6699331's information on Zone/Penetrator my third grow hasn't seen it. Started by spraying the clones, spraying a few times in veg, spraying 2 weeks into flower and that was it. ~45 days into flower and not a trace!

 

[THC123]

hey cc , that burner sounds interesting for my indoor tent and maybe for the greenhouse(althought i think there is too much ventilation for it to work there)

I don't like spraying stuff on my weed. So when u use it indoors , do you turn off the air supply/outtake??

 

[Crazy Composer]

hey cc , that burner sounds interesting for my indoor tent and maybe for the greenhouse(althought i think there is too much ventilation for it to work there)

I don't like spraying stuff on my weed. So when u use it indoors , do you turn off the air supply/outtake??

Yeah, a slower air flow is a good idea, but necessary to stop it completely. You'll want the air flow to push the vapors into every crevice of the room. Mold spores can live without a plant for a while, so the whole space needs to be zapped.

 

[Joe Budden]

Use of Baking Soda as a Fungicide

This article also discusses potassium bicarbonate which is the basic component of several commercial products (Milstop, Remedy, et al) and consumer products (Green Cure)

I've read about this in the past, the baking soda alters the ph so the PM can't grow if I can remember correctly. I've had PM plenty of times, mostly my own fault, sometimes humidity just won't go down for me lol, I hate the stuff, I got pm on my ak's about a yr ago, I made some great hash from the moldy bud though. Sulfur burners are also good but don't use them if your well into flower as your bud won't taste so good

 

[Clackamas Coot]

I found a link on using milk on powdery mildew.

I did a quick search here and didn't see a post on milk..

http://www.gardenguides.com/pests/tips/powderymildew2.asp


Jack

JackTheGrower

Here's a link to a scientific study conducted on the effectiveness of milk for controlling powdery mildew that you may find interesting - Effectiveness Of Cow’s Milk Against Powdery Mildew (Sphaerotheca Fuliginea) In Greenhouse Conditions

HTH

CC

 

[Crazy Composer]

Like I said, I used the sulfur many times fairly late in flower and tasted nothing. So did Rezdog, and others. We were all amazed that it didn't effect the taste, but it never did. This is from my experiences and the experiences of other fairly well-known growers.

 

[Clackamas Coot]

Crazy Composer

Burning sulphur is a great tool in fighting powdery mildew. It's effective in many cases.

Unfortunately in areas where PM is widespread because of weather patterns and the surrounding areas being high-density growing areas (nursery stock, vineyards, orchards, etc) it's also true that any of the solutions (i.e. potassium bicarbonate, sulphur [in all forms], sodium bicarbonate, neem seed oil, et al) have their place. They're all good tools but there is no single fix because if there were then the agriculture and horticulture industries would have found it.

I've found that lowering the humidity in my little grow area (5' x 5') with 5 plants was the most effective thing that I have found to date. I also wash down the walls every 4 weeks with a mixture of water & potassium bicarbonate, I spray my plants twice a week with neem seed oil with yucca extract in the veg cycle and for the first 2 weeks of flower, spraying with sulphured molasses, high-fungal aerated compost teas at the beginning of both veg as well as flower cycles, etc. - all of that and crossing your fingers that you won't get 2 days of rain in July followed by 5 days of 90F+ temps.

This year the mildew issues in late spring were off the chart. I bought another dehumidifier to help. Only one specific strain saw any mildew and she's now in the worm bin. No strain is worth keeping if it displays a high propensity to get hit with PM.

YMMV

HTH

CC

 

[JackTheGrower]

JackTheGrower

Here's a link to a scientific study conducted on the effectiveness of milk for controlling powdery mildew that you may find interesting - Effectiveness Of Cow’s Milk Against Powdery Mildew (Sphaerotheca Fuliginea) In Greenhouse Conditions

HTH

CC

Good info! Fingers crossed I don't ever need to spray but you never know and that is an Organic treatment.

 

[smokeetreatz]

Dr. Dorights takes colloidal micelle (2-4 nanometer in size) mixes food grade essential oils, makes them water soluble and reduces all particles to 2-4 nano meters. With the spore of mold or mildew, the product injects micelle in the spore and literally blows up the spore! The wine industry is very interested and uc. davis is trying to get an electron microscope/photo of the explosion. It kills bugs by disrupting the protein chains that protect, specifically the one for chitin, they suffocate. Where did you see that the product has been banned Mr Coot??

 

[Crazy Composer]

I haven't, by the way, had to run the sulfur for about 6 months now. I guess my area isn't a bad one for mildew... but we had it pretty bad for about a year... then I made the fortunate mistake of letting the burner go for a few days. Then... all gone. This means the spores have been eradicated, and that's what you have to do to get rid of it. And even with three days of sulfur, I never tasted any sulfur in the smoke. I don't think you'll be able to spray milk on late term buds and have them not taste like burning milk residue. But it's cool to know the milk works. I love my sulfur burner though... you just fill the cup, turn it on, and it gets EVERYWHERE in the room. Simple, and devastatingly effective.

 

[VerdantGreen]

the powdery mildew spore has a high water content and this allows it to 'germinate' even at low humidity. Keeping the air moving helps make it hard for these spores to settle.
i find in general that the lush sappy growth you get from over-fed plants encourages PM as well as irregular watering or water stress. Also plants that were potbound early in life seem from my experience to get PM at a later date - again water stress i suppose.

V.

 

[localhero]

huge props on the milk spray. worked fantastic when everything else failed.