Cornmeal

buttaflie143 5/22/2011, 8:42 am

Has anyone tried cornmeal as a fungicide in the garden? With what result? How did you apply? What was your cycle? Thanks in advance for the insight.

quiltbea 5/22/2011, 4:55 pm

I've never used it in the veggie garden.
I sprinkle cornmeal around my roses at the first sign of black spot and before I know it, the new leaves are healthy and clean.

buttaflie143 5/28/2011, 4:08 pm

I think I'm going to give it a try. No harm, no foul.

**sfg4uKim** 5/28/2011, 5:07 pm

According to http://gardening.about.com/od/naturalorganiccontrol/qt/Cornmeal.htm

I had previously reported that cornmeal was being tested for use as a fungicide, siting a study by researchers at Texas A&M Research Station in Stephenville, TX that was highlighted by Howard Garrett, the Dirt Doctor.

I tried it around a couple of tomato plants, but the results were very disappointing. The cornmeal first caked and later turned moldy - not an auspicious experiment. I was then notified by someone at Cooperative Extension in Washington State that the initial testing was for a specific problem under specific conditions, not for a general purpose fungicide. Even then, the cornmeal did not show any promise.

It would have been nice if something as available and safe as cornmeal turned out to be effective to, but that is not the case. Cornmeal is not an effective fungicide.

**donnainzone5** 5/29/2011, 2:43 pm

It may be necessary to find and purchase horticultural cornmeal. I can't remember where I saw some, but it does exist.

Old Hippie 5/29/2011, 4:00 pm

Do you perhaps mean Corn Gluten Meal? That you can buy at places that specialize in organic seeds etc.

Gwynn

has55 4/23/2016, 2:45 am

this is what dirt doctor update info says from his site about cornmeal. It must be in juice form to be use as a fungicide. I hope it helpful.

cornmeal juice

CORNMEAL JUICE

Cornmeal Juice is a natural fungal control for use as a soil drench or a foliar spray in any kind of sprayer. Make by soaking horticultural or whole ground cornmeal in water at one cup of cornmeal per gallon of water. Putting the cornmeal a nylon stocking bag to hold in the larger particles is one method but I usually just toss the cornmeal in the water, let sit for an hour or so, and strain out the solids. The milky juice of the cornmeal will permeate the water and this mix should be used without further dilution. Cornmeal Juice can be mixed with compost tea, Garrett Juice or any other natural foliar feeding spray.

We have several reports that mange has been controlled with cornmeal juice dips. In this case the solids don't even have to be strained away. Use the same mix - about one cup of whole ground cornmeal or horticultural cornmeal per 5 gallons of water.

**sanderson** 4/23/2016, 3:23 am

Maybe another treatment for our fungal infected lawn? Dollar spot fungus.

has55 4/23/2016, 9:32 am

looking for a skim milk formula for fungal control, I found thus article about applying horticultural cormeal to the soil. Many on the forum say they not getting good result with this method. I haven't tried it yet. This article is on cornmeal, cornmeal juice and later Biowash with pictures.

BIO WASH MORE REASONS TO USE

**sanderson** 4/23/2016, 2:09 pm

I have sprayed skim and 2% milk on the lawn, and some veggies for powdery mildew.

has55 4/24/2016, 4:42 am

sanderson wrote:I have sprayed skim and 2% milk on the lawn, and some veggies for powdery mildew.

how effective was it?

**sfg4uKim** 4/24/2016, 10:09 am

has55

It's best done as a preventative. I'd spray it on ALL my plants BEFORE there's a problem.

"A wide variety of vegetable crops are affected by powdery mildews, including artichoke, beans, beets, carrot, cucumber, eggplant, lettuce, melons, parsnips, peas, peppers, pumpkins, radicchio, radishes, squash, tomatillo, tomatoes, and turnips. Powdery mildews generally do not require moist conditions to establish and grow, and normally do well under warm conditions; thus they are more prevalent than many other leaf-infecting diseases under California’s dry summer conditions."

**Scorpio Rising** 4/24/2016, 10:13 am

My Patty pans got PM last summer, and I took sanderson's advice and it worked like a charm! I diluted 2% milk with water and sprayed both sides of the leaves for about a week and viola!

has55 4/25/2016, 5:24 am

sfg4uKim wrote:has55

It's best done as a preventative. I'd spray it on ALL my plants BEFORE there's a problem.

"A wide variety of vegetable crops are affected by powdery mildews, including artichoke, beans, beets, carrot, cucumber, eggplant, lettuce, melons, parsnips, peas, peppers, pumpkins, radicchio, radishes, squash, tomatillo, tomatoes, and turnips. Powdery mildews generally do not require moist conditions to establish and grow, and normally do well under warm conditions; thus they are more prevalent than many other leaf-infecting diseases under California’s dry summer conditions."

thank you

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