Copper Soap and White Powdery Mold

FreeLeaf

FreeLeaf

Active Member
I am having a WPM problem. I am 64 days into flowering. I have tried serenade, skim milk and keeping the RH down, good ventilation and sterelizing the room with Hydrogen Peroxide. I am barely winning the battle. I know that PM is inside the plant and all you can hope to do is keep it in check. I have 8 plants and all of them are infected. These plants are not covered with it but their are spots here and their. So I know it is too late in the grow cycle to use a sulpher treatment because it could taint the taste. So now I want to try some copper soap but have a few questions...

1) Will it taint the taste?

2) How often can I use it?

3) Do you apply just after the lights come on or just before they go off?

4) Can I use it while the bubs are hanging? Again, will it taint the taste?

I searched these forums for some guidelines on using copper soap. Couldn't find any.

Anybody out their with some experience using copper soap care to chime in?
TIA
 
Phelps

Phelps

Well-Known Member
FreeLeaf said:
I am having a WPM problem. I am 64 days into flowering. I have tried serenade, skim milk and keeping the RH down, good ventilation and sterelizing the room with Hydrogen Peroxide. I am barely winning the battle. I know that PM is inside the plant and all you can hope to do is keep it in check. I have 8 plants and all of them are infected. These plants are not covered with it but their are spots here and their. So I know it is too late in the grow cycle to use a sulpher treatment because it could taint the taste. So now I want to try some copper soap but have a few questions...

1) Will it taint the taste?

2) How often can I use it?

3) Do you apply just after the lights come on or just before they go off?

4) Can I use it while the bubs are hanging? Again, will it taint the taste?

I searched these forums for some guidelines on using copper soap. Couldn't find any.

Anybody out their with some experience using copper soap care to chime in?
TIA
Click to expand...
I wouldnt use it. Try spraying th plants with 3%h2o2, or if u can afford it, a small cold fogger with h2o2 would do the trick nicely. I have drenched plants with it on a number of occasions, it is harmless (@3%), and tasteless, probably my most used product in my garden lately, its in the res, it cleans the hydroton, its in the clone water, its a fungicide, algaecide, virucide, bacteriacide, I love it.:bigjoint:
 
Phelps

Phelps

Well-Known Member
FreeLeaf said:
Thanks for your input Phelps. So just out of curiosity, why wouldn't you use the copper soap?
Click to expand...
Because its a residual treatment, and those normally work best to defend against PM, not so good for clearing it out. Plus its pretty late in flowering to leave a residue on the bud. Some Copper Fungicides claim "No visible residue" but its not about being visible, its about the taste...
On the other hand I know successfull growers that use a sulfur burner almost up to harvest, and that leaves a ton of residue, so Im sure its possible. Although they claim a good rinsing off in the tub is neccessary after harvest. I would think that quality would suffer if running water were rushed through the bud, my outdoor isnt half as pretty, and is less potent than my indoor because of the rain..

Why not try the h2o2 on a single leaf if u are skeptical.
U can spray that everyday until harvest if need be.
U got any pics, how bad is it?
 
FreeLeaf

FreeLeaf

Active Member
Phelps said:
Because its a residual treatment, and those normally work best to defend against PM, not so good for clearing it out. Plus its pretty late in flowering to leave a residue on the bud. Some Copper Fungicides claim "No visible residue" but its not about being visible, its about the taste...
On the other hand I know successfull growers that use a sulfur burner almost up to harvest, and that leaves a ton of residue, so Im sure its possible. Although they claim a good rinsing off in the tub is neccessary after harvest. I would think that quality would suffer if running water were rushed through the bud, my outdoor isnt half as pretty, and is less potent than my indoor because of the rain..

Why not try the h2o2 on a single leaf if u are skeptical.
U can spray that everyday until harvest if need be.
U got any pics, how bad is it?
Click to expand...
Hey Phelps, Thanks for taking the time to help. +Rep
Every plant has 4-5 spots on them and it is creeping into the bud now. I just posted a bunch of pics. Follow the link. Do you think any of the additives in the 3% h2o2 will affect the taste?
 
C

crippled1

Active Member
I have the same issue at week 6 of 9.
Currently, I have been using Dutch Master Zone at a rate of 1/4 tsp per quart plus 60 ml Penetrator.
My concern is will this affect the taste of the final product? So I'd like to stop using it and find something better.
I am considering using SM 90. I have read good things about it.
I also have ordered another fungicide that is used primarily in the grape industry.
The same company sells a pesticide that I use also.
Here's a link to the fungicide, I have high hopes for it.

" No phototoxicity observed. No off-flavors.

This product is readily biodegradable, non-toxic, non-corrosive, non-hazardous, non-caustic, non-flammable, and hypoallergenic.

It does not contain ozone depleting substances, synthetics, terpenes, petroleum distillates, glycol ethers, caustics, builders & reagents, or California Proposition 65 Chemicals. "

http://www.wisestore.net/index.php/agriculture/agricultural-mold-and-mildew-control.html

The website says quarts are out of stock but it's wrong. They have stock.
 
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