His informative (and hilarious) column on brown spots in lawns states “Lately there have been claims made that corn meal and a garlic extract is effective. Of course, as a retired Professor, I no longer have the Ivory Tower in which to conduct the “Perfect” controlled tests. I am probably doing a very poor job of summarizing a member’s posts named “Nandina.” Don’t take my word for it or anyone elses. Part one – I have used dry cornmeal to exfoliate for my face as a teenager. Nitrogen (N) is the most important and costly nutrient to manage, and cost-effective N management practices are needed for efficient organic vegetable production. Compost carbon to N ratio should be equal to or less than 20:1 to assure net short-term mineralization. If he is, he might be the first person I learned about the TAMU study from. I’ll do it! Corn has a protein named zeamatin that is a known fungicide. Below is William Shakespeare 2000 rose with manganese deficiency in my alkaline clay, pH 7.7 … The picture is taken years ago, now it’s greener since I fixed the hole with cracked corn ($2.99 for 10 lbs. Linda’s contribution to gardeners was recognized in 2017 by the Association for Garden Communicators as the first recipient of their Cynthia Westcott Scientific Writing Award. “Human nature being what it is, many scientists don’t publish negative results (which is a shame because it would help lay to rest so many ineffective practices and products).” Thank you, Howard!. Much better than round up or cornerstone, which is what we used on our farm until finding their product. My husband was a research scientist in the medical field and seems to feel that the evidence for our situation is enough to continue using the cornmeal at this time. 77, No. Give it a few weeks for the Trichoderma to grow then plant your daylily. It works by releasing organic dipeptides (proteins) into the soil to prevent weed seeds from establishing. And on a more practical note: if this truly was a consistent, effective fungicide, don’t you think the organic companies would already be selling it as such? 5) Your iris society would probably benefit from talking to iris growers, who depend on sound science for their livelihood. That’s another problem with not publishing in the scientific literature. These 3 plants are yellowish. Mr. Parsons similarly presents no evidence but does offer his hearty unsupported denial. Just trying to help you with some research methodoloy. By the way, you stumbled upon a very good way of controlling the rust – by growing your lilies in biologically diverse groups of plants. Seriously. If I lived in a more rural area and had access to a pickup I’d probably be spreading compost on my lawn instead. It’s just a statement without any support. Dr. Chalker-Scott wrote that corn meal is not a fungicide. Next spring, many of our seedlings were already blooming. Do you wonder why further testing in field conditions have not been performed? Microbes can grow on cornmeal, and in fact cornmeal agar is commonly used in labs as a growth medium for many species of fungi. @Jay, the Wikipedia reference is not a “defense.” It’s a definition. Last year I purchased petunia plugs from a local nursery and I lost quite a few from Scleratinia …. And it’s a real stretch to take this lab-based research to application of corn meal to soil. 3.9 out of 5 stars 3. I’m sure you’d know how to conduct a proper test but for completeness this is one way to bust the myth. It is essentially impossible to prove a universal negative, so this tactic incorrectly places the burden of proof on the skeptic rather than the claimant.” From diatemaceous earth (D.E.) Rick, you don’t need an “ivory tower” in which to conduct research – look at Gregor Mendel’s groundbreaking genetic research on common peas in a monastary garden, for example. It works for me and many others. There is a wide array of organic N sources available, but they vary in cost, N content, and N availability. Has anyone in VA used it with positive results? Horticultural grade Vermiculite has become a mainstay as a component of soil less growing mediums, as a soil amendment and in many other horticultural uses. It’s my understanding that Texas A&M continued to research the issue but drew no conclusive results. There’s no need for me to use bone meal high in calcium, when my soil is rich in calcium carbonate. We are looking for a team player to take up the important role of Spray Operator. LoB: agricultural machinery, tractor PT BINA NUSANTARA UTAMA Jl. $19.99 $ 19. He referenced an online article entitled “Cornmeal has powerful fungicidal properties in the garden.” He hadn’t been able to find any reliable information and thought it might make a good topic for our blog. My daylilies have been sprayed with every recommended fungicide, to no avail. We supply a variety of Nature's Guide products, the finest in organic gardening products that are safe and effective. Corn is one of the most popular crops grown and sold in this country and nobody I am aware of is selling any type of corn meal made specifically for lawns. We Buy Any Machinery are a family run business, located in Norfolk, a rural part of East Anglia. Founded in 1974, KBW Supply has a long history of dependable service to customers in Texas and Mexico. I hadn’t looked over her bio at all, and certainly if she is a Master Gardener she should be using science-based information for her column. You can see manganese deficiency with green veins, but yellow background. We’ve been serving the green industry for 30 years, providing great deals on quality products. So, I am going to try the corn meal application on the brown patch in my new sod. When I think about the myth regarding cornmeal I think about what was written by dchall_san_antonio and the TAMU study. I don’t need a scientific study to tell me if this works or not. Iron deficiency cause yellowing of young leaves, versus manganese deficiency of diffused yellowing. I have not found cornmeal tea to be an effective control for tomato fungi or black spot on roses. Yet, there are some who swear it works. Science-Based home remedies for gardens is the funding to perform the research done... And soil sciences, publishing the results will also tell you which concentration cornmeal! Us all, but it applies to * everyone * who has commented here on page 54 http. Hurt may help experiement ; then maybe there is no end to what the public buy! 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