Biological Controls #8? Control Powdery Mildew

[Nondual]

Anyone tried Natria from bayer? I've been dealing w/ PM on and off for about a year and some change and its seems to be good so far.

from: http://bayeradvanced.com/system/pro.../original_Natria-Disease-Control-24oz-RTU.pdf
ACTIVE INGREDIENT:
QST 713 strain of Bacillus subtilis* ........... 0.074%
OTHER INGREDIENTS ............................. 99.926%
TOTAL ......................................................... 100.000%

That's Serenade under a different label. Serenade seems to work good in veg but the deeper you get into flower the less effective it becomes IME. Good thing though is you can use it right up to harvest without any negative impact on the fragrance/flavor.

 

[guest2012y]

CC1

I was thinking to post last night (but never made it), and your post is exactly what I was going to mention.

I initially started with the Actinovate at the recommended 1 TSP/2 gal, 1x weekly. However, that soon became every 3 days, at the same dilution rate.

The ~ 2x weekly applications seem to have kept things under better control, but that is by no means to say that I'm PM free.

By way of comparison, I picked up a bottle of PM Wash, for shits-and-giggles. FWIW, that seems to be as effective (if not slightly more effective, hard to say) as the Actinovate. In that regard, however, the Actinovate is by far the more economical choice.

My

I've also out of curiosity applied Actinovate to the common black mold that grows in damp areas of homes...it didn't phase it at all after 2 very heavy applications of double strength formula.

Environment is probably a key factor in how well the bacteria establish the supposed colonies.

 

[OjoRojo]

Anyone besides Alphabet Soup (il19z8rn4li1) up there use the milk technique? I've heard it referred to but never had the occasion to partake of it myself.

Worthwhile? Okay for use during later flowering? Recipe?

Thank you.

 

[il19z8rn4li1]

Anyone besides Alphabet Soup (il19z8rn4li1) up there use the milk technique? I've heard it referred to but never had the occasion to partake of it myself.

Worthwhile? Okay for use during later flowering? Recipe?

Thank you.

HEHE hello my friend.
I have used it on Vegetables for a long time now.

But LATE into flower is the same no matter what it is
your about to spray your plants with... Its really NOT recommended
for you can really degrade that trichome count from spraying.


But recipe for the milk is simply

1tbsp Dry Milk per Gallon. Im sure you can use Wet milk.. it get Whole or Organic though...but I never used wet.. always dry.

Hope it helps you out brother man.

Cheers

 

[guest2012y]

How 'bout that Actinovate eh....

I'm now up to 1 tablespoon of Actinovate per 1 gallon of water and it seems to have began working better at that concentration. It's an overnight kill at that level,but only on the treated surfaces.

 

[CT Guy]

How 'bout that Actinovate eh....

I'm now up to 1 tablespoon of Actinovate per 1 gallon of water and it seems to have began working better at that concentration. It's an overnight kill at that level,but only on the treated surfaces.

I've got the giant bag of that stuff so I have to find some use for it! I'm thinking on my next run I'm going to try using Actinovate in conjunction with a sulfur burner.

 

[ixnay007]

If you're looking for a holistic solution, willow water is a great preventative medicine. It's static as far as I know, meaning it requires reapplication, but it's a chemical indicator telling the plant it's under attack, stimulating an immune response, several outdoor growers use it against things like botrytis(sp). It's similar (chemically) to aspirin, made from small willow branches soaked in water for a few weeks. Spray it on young plants.. weekly applications mean the plant is ready to rebuff molds, mildews, etc.

It's also a great rooting agent.

 

[growcodile]

Anyone besides Alphabet Soup (il19z8rn4li1) up there use the milk technique? I've heard it referred to but never had the occasion to partake of it myself.

Worthwhile? Okay for use during later flowering? Recipe?

Thank you.

yes milk works, it doesnt kill it, but keeps PM from exploding ..

ive used wet milk in late flower because of no harmful ingredients !

But recipe for the milk is simply

1tbsp Dry Milk per Gallon. Im sure you can use Wet milk.. it get Whole or Organic though...but I never used wet.. always dry.

wet milk works, dilute it to a 1 part milk and 8 parts water solution ..

 

[canniption]

hello all,i've used actinovate in the past,so i'll throw in my 2 cents.although foliar can and does work,to be completely effective actinovate needs to be applied to the soil.its advertized as a SOIL bacteria.i start at germination.when introduced into the soil it finds its home around the roots of plants(like mycos).it colonizes and propigates around the roots,feeding off the plants waste materials while secreting beneficial and protective enzymes,forming a defensive barrier.the byproducts or waste materials produced by this microb aid the plant,complexing minerals found in the soil.this is from information i got when i purchased my actinovate.some other things you might not know:
mix only the quanity you will use at one time,actinovate is a aerobic bacteria and will die if left in water for a prolonged period of time.use all of the solution at one time,do not store for later use.water is the vehicle for getting the bacteria into the soil.
actinovate stimulates seed germination and growth.
enhances root size and growth
produces healthier and more vigerous plants and turf
breaks down minerals and micronutrients,making them more available to the plant.
affects the plant for 6-8 weeks,the entire growing season for perrenials;for annuals its the life of the plant.again,this is from info i got with my actinovate,hope this helps.

 

[CT Guy]

yes milk works, it doesnt kill it, but keeps PM from exploding ..

ive used wet milk in late flower because of no harmful ingredients !



wet milk works, dilute it to a 1 part milk and 8 parts water solution ..

My issue with milk is that it left a residue on the leaf surface for a long time after the application that looked very similar to the PM. Made it hard to tell what was PM and what was leftover milk.

 

[zone 8]

Hey folks, i am going through a PM infection right now. I have tried just about every spray possible, and none of them slowed the PM growth that much. I used s sulfur vaporizer and it stopped it in its tracks! It didnt get any better.... but it stopped getting worse.

typical usage would be a 5 hour burn once in veg, and once a week for the first two weeks of flowering. IF YOU DO THIS, GET A RESPERATOR FOR ORGANIC CHEMICALS!

Either way, im sold on using it as a preventative, and something that will stop the PM from getting worse.

Hope this helps!

 

[EclipseFour20]

I believe "raw milk" (non-pasteurized) is preferred and the effective rates seem to be between 4 and 20%...with great success at 50%.

"Cow milk may have more than one mode of action in controlling zucchini squash powdery mildew. Fresh milk may have a direct effect against S. fuliginea due to its germicidal properties (Salle, 1954). Milk contains several salts and amino-acids (Martins Filho, 1987). These substances have been shown to be effective in controlling powdery mildew and other diseases (Reuveni et al, 1993/1995; Mucharromah and Kuc, 1991; Titone et al, 1997; Pasini et al, 1997). Several authors have shown that sodium bicarbonate, oxalate, dibasic or tribasic potassium phosphate, and other salts and amino-acids have been efficient in the induction of systemic resistance (Reuveni et al, 1993/1995; Mucharromah and Kuc, 1991; Titone et al, 1997; Pasini et al, 1997; van Andel, 1966). Therefore milk may also indirectly affect S. fuliginea by inducing systemic resistance."

Source: Effectiveness of cow’s milk against zucchini squash powdery mildew (Sphaerotheca fuliginea) in greenhouse conditions

I use NONFAT raw milk...no rancidity issues.
Cheers!

 

[RiseNShine]

I too have used Actinovate. In my experience, Actinovate was not effective in treating plants that had already acquired PM. The one time I got plants from a dispensary happend to be the time I brought back clones with PM. I applied Actinovate at the recommended doses via foliar spray and it didnt seem to combat it very well. Had to toss a whole batch of clones...

If I were to use this product again I would use only as a preventative and try something different if PM has already settled in.

Just my 2 cents

Rise

 

[Clayton_Bigsby]

I tested a mixture of red clover and white clover in my outdoor garden and noticed Powdery Mildew in the clover today. Nothing on the plants in the garden though.

So after a quick 5 min google search i found some info the red clover is very susceptible to PM. Anyone with knowledge of this? Im glad i tried it in my outdoor garden before i did it inside on my babies!

 

[Amber Trich]

the wild red clover in my garden has mildew too

I would really be interested to know if it is a mildew that can be shared with ganj...

I get it also on helianthus and cucurbits, havent seen it on strawberries or roses though

 

[floral]

Has anyone used streptomyces griseoviridis aka Mycostop? The cost has kept me from trying it so far but if it's effective it might be worth the investment. It's listed for botrytis, fusarium and a few other nasties but not sure about PM.

 

[BugJar]

a combo of actinovate, insect frass and calcium stopped it dead for me.

 

[il19z8rn4li1]

Im still doing as I have always done..


Milk Solution at 1tbsp WHOLE MILK or DRIED MILK per gallon.

Follow this spraying up with a VERY ACTIVE COMPOST TEA.



Compost Teas are all you really need to do.


I'll also second the comment regarding "gardeners might not know the truth
of gardening"

you grow HEALTHY Plants, they wont get sick .... its that simple...

Dont provide a growing environment for PM and youll be golden.

 

[mapinguari]

That's 1:256 on the milk. Generally application rates range from 1:9 to 1:19, interesting you're finding it helpful that diluted.

 

[EclipseFour20]

May I suggest looking at the Zuch study I posted above...the rates they examined range from 5-50%. This graph probably says it all---

IMHO, Raw Milk is the best--and for foliar spraying I would use "skim" or "non-fat" variety. For soil/microbe feeding I found that higher fat variety...aka "whole raw milk" is better.

Cheers!