November 30, 2010
Rotate Or Tank Mix To Avoid Resistance
In this, the final article in our series on making the most of your fungicide dollars, I am considering fungicide resistance management. There are some key topics that should be addressed, and I am covering them by answering questions. Obviously, if your fungicide fails due to resistance, your dollars are wasted. Which pathogens become resistant the quickest? The pathogens that become resistant to fungicides most quickly are those that reproduce quickly and in high numbers. These include powdery mildew fungi (e.g. Oidium), downy mildew fungi (e.g. Peronospora), Botrytis, Pythium, Phytophthora and bacteria (e.g. Pseudomonas, Xanthomonas, Erwinia, etc.). It is interesting that although bacteria develop resistance to copper quite readily, fungi don’t seem to. The FRAC (Fungicide Resistance Action Committee) actually has copper listed as low risk of resistance development. Which fungicides are most likely to have resistance concerns? In this case, the more narrow the mode of action the more […]
August 23, 2010
Getting The Most From Your Fungicides: Application Rate, Interval & Timing
I am sure you’re thinking the headline is somewhat dull, but if you do not pay attention to these aspects of disease control, you will be wasting a lot of money and wind up irritated. This article is part of the series to make the most of your fungicide/bactericide dollars in order to keep your profit margin up. I hope the thoughts I pass on will help some of you make better, more cost-effective decisions regarding fungicide/bactericide use. Does Rate Really Matter? I always ask which rates are being used to treat a disease before I try to suggest a control strategy. It is interesting to me how often the rates being used are too low to be effective. You might as well be spraying water if you use too low a rate. Remember, water is not neutral but something fungi and bacteria thrive on. So spraying very low rates […]
June 22, 2010
Getting The Most From Your Fungicides Part 3: Diagnosis & Application
Are you still guessing which products to use on a disease? Are you even sure you are treating diseases and not environmental, nutritional or even phytotoxicity look-a-likes? I have spent years trying to convince growers they can actually save money if they work with a lab to make sure what they think is a disease and which one it is. In this article I will, hopefully, get you to think more about using a rifle approach to disease control and not the popular shotgun approach. It can save you a lot of money if you use only the best product for the actual problem at hand. Getting Started The first step is always to know what the actual problem is. A lab diagnosis is the best way to determine the problem you are facing. This must be done before the fungicide program is chosen. This time, I will attempt to […]
April 15, 2010
Fungicides: How Controls Impact Efficacy
Chemical control of plant disease remains a popular and often over-used mainstay of our industry. Even the best fungicides and bactericides work better when cultural control methods are used, as well. In fact, if you try to put the entire weight of disease control on the fungicides you apply after a disease appears, you will be out of business quite soon. You cannot afford to waste your money on fungicides if the deck is stacked against them working. Using an integrated disease management program is the only way to make sure you get the most out of your fungicides and bactericides. There are many factors in cultural control of plant diseases, but a few stand out in their effect on fungicide efficacy. Some factors, like new pots and sanitation, may be important in reducing disease but have relatively low impact on the ability of a fungicide to control the disease. […]
February 11, 2010
Testing For Phytotoxicity
In these times of belt tightening, it is a good idea to know how to get the most out of your fungicide dollar. Simply replacing a product with one you think is less expensive may not be the answer. In this series, I will examine some of the places you should focus your efforts to maximize fungicide benefits, including this first article on phytotoxicity. The aim of this series is to remind you of the ways we lose money by skipping steps. Other discussions in this series will be how cultural controls impact fungicide efficacy, choosing the right fungicide, the importance of rate, interval and timing in controlling disease losses, and rotating or tank mixing to avoid fungicide resistance. Phytotoxicity Costs You Money Pesticides are routinely employed by many ornamental plant producers. They are generally effective and safe for the labeled crops, but whenever a new product hits the market […]
August 25, 2008
Producing poinsettias in today’s competitive market requires a great commitment of time and energy (and a bit of Tylenol). Taking steps that make your operation more sustainable can greatly increase your overall efficiency, reduce waste and boost your price per finished plant. Preventing nutrient imbalances that lead to deficiencies and toxicities can add a few extra steps at the start of the season, but you will reap the rewards, not to mention avoid the devastating damage a disease can spread throughout your entire greenhouse. Tracking the nutrient and disease status of your crop will improve your efficiency by saving you time on the end. Here are some ways crop tracking can improve your plant quality as well as overall sustainability. An ounce of prevention is worth a pound of cure; it may be a cliché, but its message is worthwhile. As we come into another poinsettia season, we often are […]
February 22, 2018
Plant Breeders Emphasize Importance of Patent Protectio…
According to members of MarkWatch, plant patents are an important protection for plant breeders and also provide an incentive for them to invest the time and money to innovate and develop new plant varieties.
February 20, 2018
Thrips Causing Headaches? New Research Shows Bio-based …
Dr. Rose Buitenhuis will present practical knowledge for growers to implement immediately during Biocontrols West Conference in San Diego, March 7-9.
February 20, 2018
12 New Poinsettias and Succulents for Holiday Sales, Cr…
Poinsettias and succulents are both in-demand products with today’s consumers. Here’s a look at some of the newer introductions available for retail sales in 2018 and 2019.
February 20, 2018
Top 100 Growers Survey for 2018 Is Now Open!
Operations with more than 400,000 square feet of environmentally controlled production are eligible to take the survey, which provides valuable market knowledge on how the nation's largest growers are innovating, sourcing labor, keeping up with demand, and setting trends.
February 19, 2018
All-America Selections Names Latest Variety Winner, Ann…
All-America Selections (AAS), the 85-year-young non-profit plant trialing organization, had a very busy month of January.
February 17, 2018
Gotham Greens Building Second Greenhouse in Suburban Ch…
The new $12.5 million, 105,000-square-foot greenhouse will be near the company’s first Chicago greenhouse, and will be a free-standing structure.
February 15, 2018
Boxwood Blight, Seed Your Future Among Topics Receiving…
The Horticultural Research Institute recently announced the 10 research projects that will receive funding in 2018 to investigate challenges and solutions in production, pest management, environmental stewardship, and business and marketing.
February 14, 2018
Spring Meadow Nursery Furthers Its Mission of Giving Ba…
The Spring Meadow-Proven Winners Endowment Fund through the Horticultural Research Institute has now topped $800,000, with more scholarships coming in 2018.
February 13, 2018
Don’t Let Your New Year’s Resolutions Fade …
Stuff got real in 2017, and it caused many of us to stop and reflect on the current state of the world, and how we can impact change — or at least improve our own situations. Life is too short, and we work too hard, to not use the annual renewal as an opportunity to take stock of our own personal lives, businesses, and careers, and make the necessary adjustments that will allow us to work smarter and live better. Even if you have already given up on your resolutions, perhaps you can think of January as a trial month and make February the month when you really get to work on your goals. And while I know it’s a difficult month to start on some of these changes, since you’re already immersed in the busy spring season, I promise that if you take some time to evaluate your reality […]
February 12, 2018
Calling All Designers: Enter the International Plantsca…
Applications are being accepted through April 13 for AmericanHort’s International Plantscape Awards, which recognize achievements in interior plantscape design, installation, creativity, renovation, and innovation.
February 11, 2018
Bayer Has New Turf and Ornamentals Global Market Manage…
Jose Milan will be focused on helping growers deal with regulatory issues, while promoting the environmental benefits the ornamentals industry offers.
February 10, 2018
Applications for Dümmen Orange’s Dr. P. Allen Hammer Sc…
Named for Dr. P. Allen Hammer in acknowledgment of the contributions he has made to the floriculture industry, the scholarship is intended to extend Dr. Hammer’s legacy by supporting the next generation of floriculture students.
February 9, 2018
Garden Retailers at TPIE Highlight Their Favorite Produ…
A team of garden retailers once again participated in the 2018 Tropical Plants Industry Expo Cool Product Awards.
February 8, 2018
Who Will Be Our 2018 Head Grower of the Year and Operat…
The deadline for submitting nominations is fast approaching, so be sure to let us know who you feel is most deserving of these awards!
February 8, 2018
Learn the Basics of Biocontrols for Controlled Environm…
Growers producing crops in protected structures, including ornamentals, vegetable crops, and cannabis, can learn about effective sanitation, banker plants, and buying and using beneficials and predatory insects at the Biocontrols USA West Conference in San Diego, March 3-7.