DALLAS, TEXAS – Halleck Horticultural, LLC's mission is to help green industry businesses succeed and thrive in their marketing, business, and horticultural endeavors. The consultancy welcomes new hire Jill Mullaney to its team.
Halleck Horticultural, LLC, has hired Mullaney as horticulturist and accounts manager. Mullaney has joined the team at Halleck Horticultural to apply her skills across a wide variety of projects. She will be working with Leslie Halleck to manage client communication and needs, support green industry business and marketing projects.
As a skilled horticulturist, Mullaney will also be assisting with and providing new expanded horticultural consulting services for commercial green industry companies and select residential property owners.
Jill Mullaney grew up on a grain & hog farm in South Dakota. From there, she attended the University of Nebraska & received her BS in Horticulture Production. She interned at the prestigious Longwood Gardens in Kennett Square, Pa., and then began her career as a nursery manager at a landscape nursery.
Since then, Mullaney has focused on growing, first at Lauritzen Gardens in Omaha, Neb., and then as the greenhouse manager for the Dallas Arboretum for eight years. She managed all aspects of plant production at the arboretum for nearly 3000 plant species grown per year for use in the trials program as well as garden installation. She also collaborated on designs, and installed special events displays and garden designs.
Mullaney also operates her own boutique floral company, Platinum Petals, servicing special events and weddings.
When poinsettia season comes, that also means the arrival of pests and diseases that affect the popular holiday crop. In the realm of insects and diseases, two of the most common poinsettia problems for growers are whitefly and Botrytis.
The two most common whitefly species in the greenhouse are the sweetpotato or silverleaf whitefly (Bemisia tabaci), and the greenhouse whitefly (Trialeurodes vaporariorum), says Dr. Lance Osborne, professor of entomology at the University of Florida. However, there are two unique types of B. tabaci (B- and Q-biotype) that need to be managed differently.
The B. tabaci B-biotype whitefly uses its piercing-sucking mouthpart to remove fluids from the plant and turn it white, Osborne says. Adults and immatures produce honeydew, which makes the plant sticky if it is not humid in the greenhouse. If it is humid, sooty mold can grow on the honeydew. Another issue with B-biotype whitefly is that customers simply do not want to see it on their plants.
The B. tabaci Q-biotype whitefly does not turn plants white like the B-biotype does, but it does have a high resistance to pesticides, Osborne says. “The difference between B- and Q-biotypes really is, Q is much more difficult to control because of its tolerance to pesticides,” he says. “If we screw up and make a resistant B, then I’d say that the B would probably be more important than the Q.”
The greenhouse whitefly was one of the major pests on poinsettia before the B-biotype of B. tabaci arrived in the 1980s and Q-biotype in the 2000s, Osborne says. “It doesn’t cause quite the same issues as the Bemisia does, but it can feed on [the plant], debilitate it, produce honeydew and sooty mold, and people don’t want to see it,” he says.
Osborne says he has evaluated the effect of Rycar®, a SePRO product with the active ingredient pyrifluquinazon, for managing the Q-biotype, and he was impressed. “It’s one of the few tools that we recommend for Q-biotype that wouldn’t be a neonicotinoid,” he says. “Because of issues with pollinators and neonics, we have done quite a bit of research and found that we have a small list of non-neonics that actually manage the Q-biotype.”
That’s a benefit that hasn’t been lost on Evan Jones, head grower at Spring Creek Growers Nursery in Waller, Texas. Jones uses Rycar in a rotation with other chemistries, including SePRO's insect growth regulator Talus®. Although he does use a neonicotinoid drench in managing whitefly, Jones says he likes Rycar because it’s good on bee health and is specialized. “You just really want to go after one target, and with poinsettias, it’s primarily whiteflies,” he says.
While Osborne saw results with Rycar on the Q-biotype, Jones battles with the B-biotype. “I haven’t seen the Q-biotype yet,” Jones says. “It’s really hard to determine if you have it or not. I don’t think we’ve seen it. But it’s always a concern, because it’s much more difficult to control than the [B-biotype].”
Three years ago, Metrolina Greenhouses’ research and development department worked with SePRO to test Rycar for whitefly, and it has since implemented it into its IPM program for poinsettia production, says director of growing Ivan Tchakarov, who calls Rycar a “golden tool” for the business.
Additionally, Metrolina Greenhouses uses cultural practices to combat whitefly, including regular scouting and managing screens and vents, Tchakarov says.
Overall, the industry has done well in managing whitefly, Osborne says. “If you’re bringing in poinsettia, you stand the risk of getting any one of the three types of whitefly,” he says. “Growers need to really inspect their material — they need to probably isolate it somewhere before they put it into their greenhouses.”
Another culprit for problems on poinsettia is the fungal disease Botrytis, explains Mark Brotherton, portfolio leader at SePRO. This disease thrives on dense-canopied plants such as poinsettias that hold a significant amount of moisture.
Growers can reduce the potential of Botrytis by following a few crucial steps, Brotherton says. “Culturally, ways to provide an unfavorable environment for Botrytisdevelopment are to have properly spaced plants, good ventilation, low humidity, avoid excess watering — and that includes avoiding watering late in the day or at night,” he says. “Water does not evaporate at the same rate during those parts of the day.”
From a chemical perspective, the SePRO fungicide Decree®, with the active ingredient fenhexamid, has been a standard for Botrytis control, Brotherton says. “It provides preventative and curative control, and the appealing part, especially on poinsettias, is that there are no crop safety concerns,” he says. “Decree also leaves no residue, which is very important throughout the crop but especially when the bracts break color and are ready to sell. Customers do not want spots on the bracts.”
Decree offers an effective late application because of the little amount of residue that it leaves, Brotherton says. It is the only ornamental fungicide in Fungicide Resistance Action Committee (FRAC) Group 17, and it should be used as part of a rotation with other fungicides to limit the potential of building resistance.
Tchakarov says he uses Decree as part of a weekly rotation.
Growers should start their programs before the onset of conditions that are favorable to Botrytis, such as cool weather and the development of dense foliage, Brotherton says. “It’s a lot easier to prevent diseases then it is to curatively get rid of them.”
In a variety of circumstances, growers can avoid whitefly and Botrytis issues on their poinsettia crops by consulting with other growers, researchers and technical experts; performing proper cultural practices; and using tried-and-true products from trusted companies. — Patrick Williams
*Always read and follow label directions. Rycar and Talus are registered trademarks of Nichino America, Inc. Decree is a registered trademark of Arysta LifeScience North America, LLC.
Harrison, NY -- The board of directors and officers of the Gloeckner Foundation held their annual meeting on June 3, 2017. A new board member, Mr. Shayne Johnson was elected. Johnson, a graduate of the University of Wisconsin-River Falls, is a field representative for the Fred C. Gloeckner Co. and lives in Lakeville, Minn.
After reviewing proposals from many colleges, universities and research institutions in the US, 14 grants in the amount of $145,710.00 were awarded as follows:
$10,000.00 American Society for Horticultural Science, University of Minnesota, Texas
A & M and NC State University collaboration (J. Dole) - Promoting horticulture and careers working with plants – action plan. “Seed Your Future.”
$10,000.00 Kansas State University (C. Miller) - Understanding the effects of root zone temperature in potted Dahlia production.
$10,000.00 Kansas State University (K. Williams) - Updates to graphical tracking guidelines for new Poinsettia cultivars.
$12,000.00 Michigan State University (R. Lopez, A. Hurt) - Optimizing herbaceous perennial cutting callusing and rooting with DLI, light quality, medium and air temperatures.
$10,000.00 Michigan State University (W. G. Owen) - Expanding leaf tissue nutritional standards of herbaceous perennials.
$12,000.00 North Carolina State University (B. Whipker, H. Landis, K. Hicks) - Developing a prediction model for Hydrangea leaf tissue aluminum to ensure dark blue coloration.
$12,000.00 Purdue University (K. Nemali) - Smartphone-based rapid, inexpensive, and accurate estimation of plant nitrogen status in floriculture production.
$8,592.00 Stephen F. Austin State University (J. Barnes) - Herbaceous species trials at Stephen F. Austin State University.
$10,000.00 The Ohio State University (F. Hand) - Phenotypic characterization of infective pathotypes of Golovinomyces magnicellulatus, the powdery mildew pathogen of Phlox.
$10,000.00 The Regents of the University of CA, Davis (C. Nansen) - Early detection of arthropod-induced stress in greenhouse cut gerbera (Gerbera jamsonii) using hyperspectral remote sensing.
$10,000.00 University of Florida (T. Colquhoun, D. Garner) - Influence of narrow-bandwidth LEDs on floral fragrance emission.
New York Florist’s Club Grants
$10,000.00 Cornell University (M. Bridgen) - Breeding downy mildew resistant Impatiens.
$11,118.00 Cornell University (W. Miller) - Ethephon Substrate Drenches: Root absorption and translocation of Ethephon.
$10,000.00 Cornell University (J. Sanderson) - Investigating biological control of aphids on Calibrachoa.
2017 Total $145,710.00 Total Research Grants 1961 – 2017 $6,802,367.95
For more information on The Fred C. Gloeckner Foundation, or to learn how you can submit an application for a Foundation grant, please visit our website at gloecknerfoundation.org, or contact Christina Thompson at 914-630-5313 x152 or via email: email@example.com
ROSEMONT, IL – Philips Lighting has announced the recent addition of John Burns as a key account manager for western U.S. for the horticulture LED lighting segment. In his new role, Burns will focus on the floriculture and ornamental markets, and on food crops of lettuce, herbs, and strawberries, as well as other specialty crops.
Raised in a family of florists, Burns has been in the horticulture industry his entire life. Burns completed his bachelor's of science degree in horticulture with a concentration in floriculture at Colorado State University and has worked for large growers including Tagawa Greenhouses and Van Wingerden Greenhouses. Most recently, Burns held the position of technical sales representative with Syngenta Flowers in which he supported the company’s sales and marketing efforts to top growers.
“We are fortunate to have someone with John’s knowledge join our team. Because of his hands-on experience, John can relate to the challenges greenhouse growers face day in and day out, and can readily identify and articulate opportunities for growers to use our LED technology to help maximize production,” said Ron DeKok, business development director for the horticulture LED segment at Philips Lighting.
“As awareness of the value of LED technology increases, it is critical that growers have complete end-to-end support when making the transition to this new technology to ensure a positive LED experience,” added DeKok. “John will collaborate internally with our Plant Specialist and Application Engineer teams, and externally with a certified Philips Lighting horticulture partner to deliver customized LED light solutions for growers in the western U.S.”
Philips Lighting, a global leader in lighting products, systems and services for more than 100 years, has been at the forefront of innovative LED technology for a wide range of consumer and commercial applications. As part of the company’s leadership in horticulture LED lighting, Philips Lighting continues to significantly invest in LED research and collaborate externally with higher education facilities and research institutes. The emphasis on research as well as ongoing expansion of the Horticulture team demonstrates Philips Lighting’s commitment to leading the horticulture industry as the innovative LED solutions partner.
San Luis Obispo, Calif. – Eleven horticulture students from across the nation have been honored with annual Shinoda Foundation Scholarships totaling $21,000.
“The Shinoda Foundation thoughtfully selects our scholarship winners, based on their superior academics, career goals, extracurricular activities, work experience and need,” says Bob Otsuka, president. “We’re very aware that these elite students can play a key role in horticulture’s continued growth.”
2017-18 Shinoda Foundation Scholarship winners include:
- Megan Haresnape, Junior, Kansas State University, $5,000
- Olivia Fiala, Junior, University of Nebraska – Lincoln, $2,500
- Kaylee Ites, Junior, Texas A&M University, $1,500
- Melissa Eggleston, Junior, Michigan State University, $1,000
- Joanna Lambert, Sophomore, Louisiana State University, $1,000
- Leala Machesney, Junior, The University of Maine, $1,000
- Allyson Stolte, Senior, Delaware Valley University, $1,000
- Sarah Houtsman, Junior, University of Georgia, $500
- Katelyn Stoops, Senior, University of Missouri – Columbia, $500
This year, additional award winners include:
Alexandra Bickham, who received a $1,000 Shinoda Design Center scholarship. The award goes to a floral design student attending California community colleges in Los Angeles, Orange, Riverside and San Diego counties. Bickham attends Cuyamaca College in El Cajon, California.
Gage Willey, who received a $1,000 California Floral Council Scholarship. Willey is majoring in Agriculture and Environmental Plant Science at Cal Poly, San Luis Obispo. The award is available only to applicants residing in California.
Since 1965, The Shinoda Foundation has awarded more than $847,250 in scholarships to 684 students.