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August 18, 2014
Echinacea has become a mainstay in the American landscape. Although this perennial genera is not new to the industry, the last decade has seen an abundance of colorful new cultivars hitting the marketplace and reviving the interest of a traditional...
August 18, 2014
What do you think most consumers are looking at when they are standing in front of a retail plant display? Most growers would probably say it’s the plants if they’ve done a good job of producing a quality crop. The answer might vary for plant...
August 18, 2014
Water-soluble fertilizers (WSF) are the principal fertilizer type used by greenhouse growers. WSF are made from soluble nutrient raw materials that are mixed into stock tanks and delivered via injectors through an irrigation system. Controlled-...
August 18, 2014
Many greenhouses today have backend systems that are used for processing orders, maintaining their production, keeping an accurate inventory and tracking labor. For many, access to these backend systems means being at your desk where you can access...
August 18, 2014
Biochar is charred organic matter that remains after a process called pyrolysis. Pyrolysis is a thermochemical decomposition of organic matter. In this process, organic matter is subjected to extremely high temperatures (200 to 800° C) in the...
August 18, 2014
ARC:  I know most plant pathologists recommend preventive disease control and most growers practice “curative” programs. It’s just human nature to wait until evidence of a problem presents itself before acting. What are your most compelling...
August 18, 2014
The health of the plants in your greenhouses corellates directly to the health of your business. If your plants aren’t healthy then, most likely, your bottom line is probably looking a little sickly too. To help you produce healthy and profitable...
July 09, 2014
Application of plant growth retardants (PGRs) is the most common technique used by greenhouse growers to control crop height. When used at an appropriate rate and volume, PGRs can elicit desirable results, such as improving crop quality. However,...
July 09, 2014
This year, Selecta introduces all-new genetics of interspecific impatiens for a great opportunity to grow and merchandise a shade product with confidence. Bounce is highly resistant to Impatiens Downy Mildew, making it the best replacement option...
July 09, 2014
If you like Oriental lilies, the spectacular new Roselily series of double Orientals from Zabo Plant may soon become your new favorite type of Oriental lily. This series features double flowering cultivars, which are pollen free and have a light,...
July 09, 2014
When I started at the University of Florida in the early 1980s, we had no effective products for biological control of diseases. It was the time frame when many of our industry standard fungicides were being developed including chlorothalonil,...
July 09, 2014
Water shortage and poor water quality are critical challenges to gardening and landscaping in many regions of the world and will no doubt continue to challenge our industry. With rapid increases in urban populations and industrial development, the...
July 09, 2014
As the title of this article implies, ‘research’ is literally, and figuratively, our middle name. We are the Greenhouse Production Research Group (GPRG), a part of the USDA’s Agricultural Research Service (ARS). The Agriculture Research Service is...
July 09, 2014
In the June issue of GPN, you read about some of the trends we came across during our journey through California for the 2014 Spring Trials. This month, we’re focusing on the new variety introductions that made their debut along the west coast this...
July 09, 2014
Question: I am contemplating the use of biological control against fungus gnats. Can you please provide information on the commercially available biological control agents?  Answer: Fungus gnats (Bradysia spp.) are major insect pests of...
July 09, 2014
ARC:  When we both started in our respective careers, most plant disease control products were quite broad in their spectrum of activity.  In 1979, my first exposure to  fungicides was testing an experimental product with...
July 09, 2014
When it comes to making landscape purchasing choices this year, consumers are basing their decisions on two major areas — enhancing their outdoor living areas and the environment. Earlier this year, Houzz.com surveyed more than 4,500 individuals who...
June 09, 2014
Light-emitting diodes (LEDs) are perceived as the hottest technology in controlled-environment crop production and certainly their future is bright. A recent study by ReportsnReports estimated the LED market for plant applications will be $3.6...
June 09, 2014
Sedum have come a long way. In the not-too-distant past, we had sedum ‘Autumn Joy’, which had many devotees, but had annoying habits, like falling apart. The Touchdown series of sedum redefine, “compact, yet upright, low habit” in the sedum arena....
June 09, 2014
Agastache has been gaining in popularity in recent years. The increase in demand for this perennial is well deserved; after all, its aromatic foliage and showy flowers are appealing to bees, butterflies, hummingbirds and landscapers alike. If you...
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