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Press Releases

May 20, 2018: GreenCure; Cheers in the Hop Yard
May 1, 2018: GreenCure Used to Control Needle Cast Disease
March 1, 2010: GreenCure® Fungicide Tested and Endorsed by the American Rose Society
July 31, 2007: Plant Disease Expert Releases Definitive Book About Rose Diseases and Pests
May 10, 2007: Joe Gardener Selects GreenCure® Fungicide as One of His 'Best of The Must-Haves' for 2007
May 18, 2006: Dispelling the Myth of the "Cornell Formula" Garden Fungicide

GreenCure; Cheers in the Hop Yard

Conklin, NY - May 20, 2018 -- Jay Janowski, a hops grower in Wisconsin, believes in using organic practices wherever possible so he turned to GreenCure to control both powdery mildew and downy mildew. Jay stated, "GreenCure is very effective and has several significant advantages over conventional products; a 1 hour re-entry interval, I can spray right up to the day of harvest, and very little, if any, chance for resistance buildup."

"In spraying a hop yard, there's potential for some drift since our site is very open and we are using spray tips that emit the smallest droplet size possible to ensure complete coverage. We want to be 100% sure we won't be causing any detrimental effects on our neighbor's crops."

"There was a wet stretch of about 3 weeks last Spring where we were getting rain nearly every day and I wasn't able to do my preventative spraying on schedule. I chose to wait until we had a few dry days in a row and ended up seeing early signs of downy mildew on some of the plants. After spraying with Green Cure, all visible signs of downy mildew were gone within two days!" explains Jay.

"I can see the leaves have picked up a certain sheen after an application, which gives me confidence I'm getting full coverage." In addition to GreenCure, Jay also rotates in Zonix Biofungicide as part of his total IPM. "On paper, I try to get an application on my plants every 10-14 days, but in reality, it depends on timing of rain events. You can expect Green Cure to do an excellent job, but it's in the grower's best interest to be vigilant, as they would with any other aspect of crop management."

"My spraying regimen started (at first spike emergence) with 2.5 gal/acre using a single nozzle aimed at the row, much like an herbicide application. As the plants grew, I gradually increased the volume by using more nozzles. I divided each sprayer boom into three separate sections, so I could gradually increase the amount of volume needed as the plants grew. Eventually as the plants reached the top of the trellis, I was using 55 gal/acre and expect to use more as the plants come into year three and we get our fertility dialed in."

Learn more about GreenCure and Hops at:

For more information, or to find a local retailer or online store, visit:

Peter W. Yeager
GreenCure Solutions

GreenCure Used to Control Needle Cast Disease

Conklin, NY - May 1, 2018 -- Christmas Tree growers in Michigan and Massachusetts have been testing GreenCure for control of Needle Cast Disease on Douglas Fir and other crop trees and have been having very positive results. Ethan Stone of West Brook Tree Farm in Athol Massachusetts was searching for a better, less toxic way to control Needle Cast Disease when he came across GreenCure Fungicide.

He was concerned about using the standard harsh chemical treatments and the possibility of spray drift. GreenCure (OMRI Listed) is a potassium bicarbonate based foliar fungicide, so he was drawn to it for these reasons. The key of course, was would GreenCure be effective against the difficult to control Needle Cast fungus. So far, the results have been very positive and for the first time since the 1980ís he has been able to harvest Douglas Fir trees, that previously had seemed most susceptible to the disease.

For more information, or to find a local retailer or online store, visit:

Peter W. Yeager
GreenCure Solutions

GreenCure® Fungicide Tested and Endorsed by the American Rose Society

Johnson City, NY - March 1, 2010 -- After undergoing "in garden" testing by American Rose Society members throughout the country, GreenCure® Fungicide has received the official "Tested and Endorsed" designation by the American Rose Society.

Founded in 1892, the American Rose Society (ARS) is the oldest single plant horticultural society in America and is affiliated with over 300 rose societies nationwide.

The American Rose Society endorses products that it finds to be of great benefit to rose growers and has an extensive testing process to ensure that each and every endorsed product meets all of the high expectations that itís members have become accustomed to.

"This is a huge endorsement for us," says Peter Yeager of GreenCure Solutions. "We respect the years of experience that ARS members have with controlling plant diseases, especially on roses, and itís gratifying to hear of the success they are having with GreenCure®."

GreenCure® is quickly becoming a favorite of serious rose growers. Powdery mildew can be devastating to roses and itís important to take preventative or curative measures to ensure that roses stay healthy and disease free. "Rosarians have typically used very harsh chemical fungicides to control diseases because there werenít any good alternatives," says Yeager. "They donít need a respirator when spraying GreenCure® and they get the added benefit of knowing that GreenCure® fulfills the USDAís requirement for use in organic gardening."

Award winning rose photographer and ARS member, Stan Griep, understands the importance of keeping his roses looking flawless and recommends GreenCure® for disease control and prevention. Stan remarks, "I found that using GreenCure® at the preventative rate allowed me to go an entire season without any powdery mildew or black spot problems!"

Developed by renowned plant pathologist and rose disease expert, Dr. Ken Horst of Cornell University, GreenCure® is recognized as an alternative to more toxic fungicides currently on the market. The active ingredient in GreenCure® is potassium bicarbonate and the formula has surfactants built in that enhance itís fungicidal properties. GreenCure® is a powder concentrate that is mixed with water and sprayed. This EPA registered product is labeled for use on 25 different plant diseases and more than 150 types of plants, including roses, ornamentals, house plants, fruit, nut trees, and turf. GreenCure® is very effective in controlling powdery mildew and other plant diseases on pumpkins, squash, cucumbers, tomatoes and other garden vegetables. GreenCure® is available in many independent garden centers or on the Internet through a number of catalogs and online garden centers.

For more information, or to find a local retailer or online store, visit:

Peter W. Yeager
GreenCure Solutions

Plant Disease Expert Releases Definitive Book About Rose Diseases and Pests

PRESS RELEASE: Ithaca, NY, July 31, 2007 -- The first edition of The Compendium of Rose Diseases, by R. Kenneth Horst published in 1983 has long been recognized as the most concise, useful and trusted compendium books on the subject of rose diseases. Now, the second edition Compendium of Rose Diseases and Pests sets a whole new standard as the authoritative source for information and guidance regarding identification and control of rose diseases and pests. Collaborating with Dr. Horst in writing this book is Raymond Cloyd, an expert on pests that affect roses.

The Compendium of Rose Diseases and Pests, Second Edition has been thoroughly updated, expanded, and given a new format with 151 color photographs throughout to provide the reader with the most current and relevant information available in a user-friendly manner. The new second edition now includes information on insects and mites with 68 images to help identify these pests and the damage they cause. The book will be an invaluable resource for serious rosarians, commercial growers, garden centers and even casual gardeners who have a special interest in growing roses.

Dr. Horst, who is considered one of the foremost experts on plant disease brings to the reader his vast experience dealing with diseases such as powdery mildew, black spot, rose canker, botrytis blight, verticillium wilt and other diseases caused by fungi. The book covers rose diseases caused by bacteria as well as viral diseases such as rose mosaic, rose streak, leaf curl and other problems. It also covers rose damage caused by physiological problems, environmental imbalances, air pollution, pesticide toxicity and nutritional deficiencies.

Published by the APS Press which is the publishing arm of The American Phytopathological Society, the new Compendium of Rose Diseases and Pests, Second Edition features:

  • Color photographs of infectious disease symptoms, now inset with the text, enable users to accurately identify diseases that affect roses and quickly understand the causes, life-cycles, and treatment approaches available.
  • Noninfectious symptoms, such as those caused by pollution and toxicities, are covered and illustrated with color photographs that help distinguish them from bacterial, fungal, nematode, and viral symptoms.
  • A new color section on pests and the symptoms they cause helps users to identify the insects and mites that attack roses.
  • Discussions of pest and disease management measures stress timeless principles and cultural practices ensuring that this reliable sourcebook will help maintain healthy rose bushes for many years to come.
  • A genealogy map of rose species provides a guide to the development of hundreds of rose species, along with general growing tips and practices.

The purpose of this new edition is to aid plant pathologists, entomologists, horticulturists and other related specialists as well as casual rose gardeners and rosarians, in the diagnosis of rose diseases and pests. It is designed to serve as a practical reference and resource for rose growers and gardeners, students, researchers, educators, crop disease and pest consultants, advisors in state and federal government and regulatory agencies, agribusiness representatives, the pest control industry, county agricultural and cooperative extension agents, and area crop specialists worldwide.

Authors R. Kenneth Horst and Raymond Cloyd have distinguished backgrounds in writing on diseases and insect problems associated with ornamental plants. The senior author, Dr. Horst, is professor emeritus of plant pathology from Cornell University. He has been an active educator, public speaker, researcher and writer on ornamental diseases since the early 1960s. His writing includes more than 230 publications in scientific and trade journals and several books including the Compendium of Chrysanthemum Diseases and his ongoing role as editor of Westcott's Plant Disease book.

Dr. Horst is also known for developing a number of environmentally responsible disease control products, including GreenCure® fungicide, a potassium bicarbonate based broad spectrum fungicide. GreenCure® has a proven track record in more than 200 university trials and 15 years of use by commercial and organic agricultural growers. Research that led to the development of GreenCure® relied extensively on testing against rose diseases.

The GreenCure® formula is used in commercial rose production and agriculture as well as by home gardeners for rose and ornamental growing, fruits, vegetables and turf. The benign nature of the formula enables it to be used in organic production as it meets the USDA's requirements for organic certification under the National Organic Program. This makes it an ideal fungicide for use on fruits and vegetables such as tomatoes, cucumbers, squash, pumpkins, beans, apples, grapes and many other plants.

The co-author, Raymond Cloyd, is well recognized for research and extension publications on insects or ornamental plants since the mid 1990s. He has held positions in private industry and authored a book on IPM for gardeners.

Peter W. Yeager
GreenCure Solutions

Joe Gardener Selects GreenCure® Fungicide as One of His 'Best of The Must-Haves' for 2007

PRESS RELEASE: Johnson City, NY, May 10, 2007 -- Each year, Mr. Lamp'l, who is better know as "Joe Gardener", researches and tests dozens of new garden products and selects a few of the products that he considers the "Best of The Must Haves" for gardening. After using GreenCure® last year, he decided that it was a superior fungicide for a number of reasons and selected it for 2007.

"We've seen GreenCure® at work, effectively treating and curing plant diseases," says Joe of his own field trials. In addition to Joe's testing, GreenCure® has been independently evaluated in more than 200 university trials in which it has been proven to be as good or better than traditional chemical fungicides. Plus it has been used successfully for more than 15 years in large-scale organic agriculture.

BEST OF THE MUST-HAVES 2007The proven track record and the fact that GreenCure® can be used in organic gardening really peaked Joe's interest, "An innovative product this safe and effective always gets our attention. It's what we look for when deciding what makes our elite list. GreenCure® delivers with flying colors, which is why we named it a Best of The Must-Haves for 2007," said Joe.

Developed by retired Cornell University professor and plant pathologist, Dr. Ken Horst, the patented GreenCure® formula uses potassium bicarbonate combined with two surfactants that spread and stick the solution to plant surfaces. Potassium bicarbonate, which is a common ingredient in food products, has been found to be an effective fungicide. "It causes rapid dehydration, and the cellular walls of spores collapse," says Dr. Horst.

Not only is GreenCure® a powerful fungicide, it meets the USDA's National Organic Program (NOP) standards for use in organic gardening. According to research commissioned by the Garden Writers Association, nearly 25% of gardeners now use only "organic" pesticides or fungicides, GreenCure® fills a growing niche' in the market. "Fruits and vegetables can be harvested within an hour of spraying," says Horst. Joe Gardener adds, "As pro-active gardeners, we believe an ounce of prevention is worth a pound of cure. For years, organic gardeners have fought to prevent the onslaught of powdery mildew and other plant diseases with organic alternative methods. Enter GreenCure®!"

This is welcome news to gardeners such as Stan Griep, first vice-president of the Loveland
Rose Society in Loveland, Colorado. "I have to tell you I like this product just as much as I thought that I would," said Griep, an ARS (American Rose Society) Certified Consulting Rosarian. "I found that using it at the preventative rate allowed me to go an entire season without any Powdery Mildew or Black Spot problems! I also used GreenCure® on my mother's roses that I help her tend to. Powdery Mildew had set in on several of her roses. While that was unfortunate, it gave me a great opportunity to really put GreenCure® to the test. Using GreenCure® at the cure rate took care of the situation in short order."

GreenCure® is quickly becoming a favorite of serious gardeners. "Rosarians, master gardeners and organic gardeners are really leading the way," says Pete Yeager, President of GreenCure Solutions. "Their deep knowledge of gardening helps them to quickly understand the value and advantages of GreenCure®. It's really gratifying when we hear from avid gardeners because you know they've tried many products over the years and they really like GreenCure®."

GreenCure® is a powder concentrate that is mixed with water and sprayed. This EPA registered product is labeled for use on 25 different plant diseases and more than 150 types of plants, including roses, ornamentals, house plants, fruit, nut trees, and turf. GreenCure® is very effective in controlling powdery mildew and other plant diseases on pumpkins, squash, cucumbers, tomatoes and other garden vegetables. GreenCure® is available in many independent garden centers or on the Internet through a number of catalogs and online garden centers.

For more information, or to find a local retailer or online store, log on to, or call 607.797.0668.

Peter W. Yeager
GreenCure Solutions

Dispelling the Myth of the "Cornell Formula" Garden Fungicide

Erroneous information has led to the use of ineffective homemade formulas.

PRESS RELEASE: Ithaca, NY, May 18, 2006 --- During scientific trials, incomplete information was reported in a gardening publication that ultimately found its way into the public domain where it contributes to the myth that concoctions and mixtures of baking soda, oil, water and soap are a recommended ‘Cornell Formula’ fungicide. “There is no such formula,” says the lead researcher, Dr. Ken Horst, retired plant pathologist from Cornell University.

"With the advent of the Internet," says Dr. Horst, "The myth of the so-called 'Cornell Formula' continues to spread and I feel that the record needs to be set straight. Many of the formulas that are promoted in articles and forums are simply inferior and may have adverse impacts."

During the early years of experimentation into the use of bicarbonates as fungicides, Dr. Horst and his researchers were working to boost the effectiveness of the solution by making it spread and stick to the leaves. To do this they tested horticultural oil as well as many different additives.  Unfortunately, a publication picked up some information half way through the research and with a single article the myth was born!  The problem is that when the research was complete, Dr. Horst decided against horticultural oil as an additive, because it had many negative characteristics. 

Many of these so-called formulas have very limited benefit and some of these recipes can even result in phytotoxicity or burning of the leaves. For example, baking soda and water by itself has limited benefit because it does not spread evenly across the surface of the leaf and easily washes away. The use of oils or soaps to spread and stick the bicarbonate can lead to an unwanted build-up of chemicals, alter soil pH levels and increase the potential of phytotoxicity.  It is very difficult to control ingredient levels or fully understand the possibility of unwanted interaction among chemicals with homemade remedies.

Stories about the efficacy of baking soda in controlling garden fungi have circulated for many years. Its use is a welcomed alternative to other fungicides because bicarbonates, both sodium bicarbonate and potassium bicarbonate are recognized as safe food additives and do not have adverse environmental impacts. It's no wonder that baking soda-based formulas have been so eagerly passed along among ornamental and organic gardeners.

In 1985 Dr. Ken Horst began research into the efficacy potential of bicarbonates. The research was intended to quantify the true efficacy of bicarbonates, identify their mode of action and determine the most effective use of these compounds. Several years of research resulted in some significant and surprising discoveries. "The research demonstrated the ability of bicarbonates to effectively inhibit and kill mold spores and determined that potassium bicarbonate was 25 to 35 percent more effective than sodium bicarbonate (baking soda)," says Horst.

The research further indicated that a spreader-sticker mechanism was required in order to control and maintain the effectiveness of the bicarbonates. "Without a spreader-sticker," adds Horst, "You don't get complete coverage of the leaf which is necessary to prevent or cure fungal diseases."

During the years of research many spreader-sticker systems were tested, including the use of horticultural oil as an additive. This resulted in better control of the solution and proved more effective than water and bicarbonates alone, unfortunately the test results also showed that horticultural oil as an additive had many negative characteristics.

Negative characteristics of horticultural oil as an additive to bicarbonates include:

  • Repeated use for several weeks causes phytotoxicity
  • It results in an oily residue building up on the leaves, fruits and vegetables
  • There is an occasional visible crinkling of the leaves
  • The oil rapidly separates from the water making application difficult and inconsistent

For these reasons and others, horticultural oil was rejected as a spreader-sticker. In order to find a safer, more efficient additive, more than 350 spreader-sticker systems were evaluated. Highly effective spreader-sticker additives were discovered which increased the efficacy and reliability of bicarbonates for use on ornamentals, vegetables and fruits. Additional research was done on a wide variety of plants and quantitative results were determined for a broad spectrum of fungal diseases. Ultimately, a combination of spreader-sticker additives in very specific quantities was found to be significantly more effective than all other alternatives.

The patented formula, which is distributed by H & I Agritech, Inc., has been successfully tested in more than 200 university studies.  Evaluated against leading fungicides, this product was found to be comparable to or better than other fungicides with one dramatic advantage; it’s a far safer alternative. 

It has been used in the finest orchards, vineyards, and farms and in a variety of other commercial and agricultural applications for more than 8 years. This same product is now available for use with indoor plants, in home gardens, on small organic farms and greenhouses under the name GreenCure®.

GreenCure® cures and prevents powdery mildew, blackspot, blights, molds and other plant diseases on garden crops & ornamentals. It is labeled for use against more than 25 different plant diseases including Downy Mildew, Powdery Mildew, Alternaria Blight, Athracnose and Blackspot. It is registered for use on over 150 different annual and perennial flowers, woody and ornamental shade trees, woody and herbaceous ornamentals, many herbs and vegetables, and ornamental nut and fruit trees. 

Prevention and control of plant mildew and related plant diseases is of great interest to gardeners. Fungal related plant diseases are damaging and unsightly in ornamental plants and can outright destroy garden crops.  In addition, plant molds and their airborne spores can cause allergies and adverse health effects in humans and animals, therefore control of mildew is a serious concern.  Controlling mildew the right way is very important and unfortunately the homemade remedies are not as effective or may cause unintended problems.

"It's really amazing how widespread and how often repeated this myth has become." says Horst. "Considering the amount of research that went into finding the most benign and effective solution to control plant mildew, there really is no reason for gardeners to create homemade solutions that may not be effective and may produce unfavorable results."

The active ingredient in GreenCure® is potassium bicarbonate, which is listed by the U.S. Food & Drug Administration (FDA) as generally recognized as safe (GRAS). It is commonly used in foods and medicines and does not have any adverse environmental impacts; therefore the appropriate use of this compound, as a fungicide is an important alternative to many of the conventional fungicides that are undergoing toxicological review by the EPA.

Peter W. Yeager
GreenCure Solutions
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