Archive for the ‘Floriculture’ Category
March 11th, 2013 by Jean Williams-Woodward
By Ansuya Jogi and Jean Williams‐Woodward
The tables in the link below consist of the commercial and homeowner samples submitted to the plant disease clinics in Athens and Tifton for February 2013 (Table 1) and one year ago in March 2012 (Table 2). Sample numbers were still low in February, but this will soon change! Much of the symptoms we saw on samples were due to environmental stress/injury. However, root and crown diseases caused by Phytophthora, Thielaviopsis basicola, and Rhizoctonia continue to be identified. Also, with the cooler, humid, wet weather, the fungus, Botrytis, will continue to cause problems in the field and in greenhouses, particularly on freeze damaged tissues. Looking ahead through March, based upon samples diagnosed a year ago, we will likely see an increase in turf samples and problems, as well as rust and Sclerotinia diseases starting to show up. I would suspect too that downy mildew diseases will also become prevalent on some crops, particularly on ornamentals in nurseries.
December 11th, 2012 by Matthew Chappell
Simple calculator for Hortus IBA Water Soluble Salts(TM) 20%.
Developed for horticulturist, researchers and hobbyist who use Hortus IBA (TM) (20%) to vegetatively propagate plants. Hortus IBA (TM) (20%), one of the leading commercial rooting hormones, allows users to vary the strength (concentration) of their rooting based on their particular need.
This program calculates the amount of Hortus IBA Water Soluble Salts(TM) (20%) to use for a given concentration (parts per million) and volume. Users simply input the desired concentration of the rooting hormone (in parts-per-million, ppm), the amount of rooting hormone needed (in liters, milliliters or gallons) and the app reports how much Hortus TM IBA (20%) (in grams, milligrams or ounces) to mix to produce the desired concentration.
Hortus IBA Water Soluble Salts is a trademark of Hortus USA. See http://m.hortus.com“>Hortus for more information. Hortus USA is not affiliated with and is not responsible for this app or its content. All trademarks are the property of their respective owners.
Please be careful when using this application. OHM Horticultural Apps is not responsible for damages caused by improper use of this app. Double check your input.
Download it here!
September 24th, 2012 by Matthew Chappell
Allen D. Owings, Regina P. Bracy and Roger Rosendale
The LSU AgCenter Hammond Research Station evaluates approximately 300-350 cool-season bedding plants in landscape settings each year from October through May.
Of the annual flowers for the cool season of the year, most people are familiar with pansies, snapdragons, petunias, garden mums and older varieties of dianthus. But there are many more.
To read the entire article, click here.
September 13th, 2012 by Jean Williams-Woodward
Jean Williams-Woodward, University of Georgia Extension Plant Pathologist, will present common winter annual flower diseases, what to watch for, and how to control them. This Webinar is free to all Landscape Contractors and Extension Professionals.
A complete schedule and archive of Landscape Professional webinars may be found at http://ugaurbanag.com/webinars
These webinars are easily viewed with a smart phone or iPad so you can be on the run.
July 18th, 2012 by Matthew Chappell
The annual SNA Research Conference has become world-renowned for quality research. Participants are the top horticultural research and educational leaders from across the country. Hundreds of topics in thirteen categories are presented at the conference and the proceedings are published online as an industry service.
The SNA Research Conference Proceedings, from 1991 to 2012 (2,872 titles comprised of 11,208 pages), are available in Portable Document Format (PDF) for downloading and viewing or printing. Click here for more information.
July 10th, 2012 by Matthew Chappell
Over the last three decades, the Trial Gardens at the University of Georgia have introduced home gardeners and landscape designers to thousands of new plant varieties.
Every year at the Trial Gardens’ open house, visitors have the chance to get an up-close look at a new class of vetted ornamentals ranging from gorgeous flowers and spectacular roses to hardy bulbs.
As the gardens’ staff prepares to welcome the public to the 30th annual open house on July 14 from 8 a.m. to 2 p.m., hundreds of new plants will be on display, and a special wine and cheese preview event from 7 to 9 p.m. on July 13.
“We enjoy sharing the beauty of the garden and highlighting some of the new plants that people can plant in their gardens,” said Allan Armitage, a UGA horticulture professor and the gardens’ founder. “After all, where is it written that research has to be ugly?”
Located on the UGA campus in Athens between Snelling Dining Hall and the pharmacy building, the gardens display hundreds of annuals and perennials from plant breeders around the world. The garden is always open to the public free of charge, but the open house gives visitors a chance to learn inside knowledge about this year’s most promising plant varieties.
Dozens of new rose varieties that will hit the market next year will be on display. Vegetables designed for the patio and porch will also be highlighted and include squash, peppers, tomatoes and eggplant.
Armitage, who directs the gardens, will give tours throughout the day. He will also hold a book signing, and his recent titles will be on sale. The open house will include an heirloom tomato tasting, featuring 17 varieties of tomatoes grown in the trial gardens this summer. This year the staff ran trials on heirloom and new patio variety tomatoes, said B.J. Garrett, open house coordinator and garden volunteer.
The tomato tasting, she said, is really the best way to let gardeners get to know a tomato variety and decide whether they want to plant it next year.
Planters designed by the gardens’ staff will also be available for sale.
The open house will be held rain or shine, and a donation of $5 is requested. The preview event, a Summer Evening in the Gardens, will feature wine and cheese, tours of the garden with Armitage, first pick of plants that are available for sale and cooler weather. Admission to this event is $5, and there are a limited number of spaces available. A space can be reserved by emailing email@example.com or by calling Brooke Pridemore at 770-364-3089.
June 15th, 2012 by Jean Williams-Woodward
Dr. Jean Williams-Woodward- University of Georgia Plant Pathologist
Downy mildew on impatiens identified in Georgia retail nursery and landscape
Downy mildew on impatiens (Impatiens walleriana), caused by Plasmopara obducens, has been confirmed from a commercial nursery and a home landscape sample this week. The commercial sample, submitted by the Georgia Department of Agriculture, originated from a retail nursery in the Atlanta area. The home landscape sample is interesting in that new impatiens plants were not transplanted into the landscape bed this year and that the impatiens are allowed to reseed each year. This could mean that the pathogen has survived within the landscape bed from infected plants in previous years. It is not known whether impatiens downy mildew can survive within seed. This bed is located in a shady area and is irrigated with spray emitters that wets the foliage regularly, which creates an ideal condition to spread the disease to adjacent plants. Furthermore, the cooler, wet weather that northern Georgia has seen over the past few weeks has likely contributed to disease development and spread. At this time, we don’t know how widespread impatiens downy mildew is within the state. It is also likely that hotter and drier weather patterns usually seen through the summer will stop or slow disease development.
Downy mildew symptoms on infected plants begins with leaf stippling, downward curling of leaves, leaf yellowing, and leaf drop and disintegration leaving the stems bare. The downy mildew pathogen sporulates profusely on the backside of the leaf, as well as from infected stems as they soften and collapse. If you suspect downy mildew on impatiens within Georgia, please submit a sample to confirm its presence to the UGA Department of Plant Pathology Plant Disease Clinic in Athens. The form and address can be found here:http://plantpath.caes.uga.edu/extension/documents/PlantDiseaseSubmissionFormApril2012.pdf
. For more information, contact Jean Williams-Woodward at firstname.lastname@example.org
April 17th, 2012 by Matthew Chappell
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- Contains images, pest lifecycle, and management options for major pests of woody plants!
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- Built-in pesticide recordkeeping to make outdoor, and on-the-go recordkeeping easy!
- BONUS Weed content!
Check it out here:
April 3rd, 2012 by Matthew Chappell
By: Kelly Ivors, North Carolina State University
Ever wondered what to use to sanitize those tools? Well here ya go!
March 1st, 2012 by Matthew Chappell
Todd Hurt, UGA Center for Urban Agriculture Training Coordinator
Bodie Pennisi, UGA Extension Horticulture/Landscape Specialist
To watch archived presentations – click on the title for the month. To view speaker details – click on the speaker’s name.
Visit http://ugaurbanag.com/webinars for more details.
|TUESDAYS @ 11 AM
||Rejuvination Pruning, Making the Tough Cuts
Rick Smith, The Pruning Guru, LLC
||Pesticide Applicator Resources Every Landscaper Should Know
Willie Chance, Outreach Coordinator, UGA Center for Urban Ag
||Bulletproof Annuals for Georgia
Jenny Hardgrave, Simply Flowers, Inc.
||Cultivating Success, How to get your Staff Motivated
Jeff McManus, Director of Landscape Services, Ole Miss University
||Landscape Irrigation, Every Drop Counts.
||Sustainable Turfgrass Practices for the Educated Consumer
Becky Griffin, UGA Turfgrass Extension Associate
||Ornamental Plant Disease Topic TBA
||Under the Scope with Dr. Braman; Advanced Ornamental Insect Id and Control, Dr. Kris Braman, UGA Entomologist
||New Woodie Ornamentals TBA