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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...
June 09, 2014
Pacific Plug & Liner (PP&L) in Watsonville, Calif., recently completed the installation of a water reclamation system for its 15-acre outdoor production area. Although primarily a young plant producer with 8 acres of greenhouses, PP&L...
June 09, 2014
Due to the rise in farmers markets and consumer demand for fresh, high-quality and readily available agricultural products that are locally and sustainably produced, domestic production of specialty cut flowers continues to increase across the...
June 09, 2014
They say trends start on the coast and work their way inward. If that’s true, we have several noteworthy trends from this year’s California Spring Trials that are sure to end up in one of your greenhouses … it’s only a matter of time.  Unlike...
June 09, 2014
ARC:  Resistance management is becoming more important daily as our fungicides are more targeted than they used to be. It is easy to tell a grower to rotate to help keep resistance from developing. I find growers sometimes prefer to tank mix...
June 09, 2014
It’s kind of hard to believe but the World Wide Web is almost 25 years old already. I’m sure when Tim Berners-Lee wrote his original proposal for a computer database and software project back in 1989, he had no idea what that proposal would evolve...
May 07, 2014
Demand for some cold-tolerant floriculture crops continues well into spring, which can make production of high-quality plants difficult when the weather gets warm. Cold-tolerant crops, also sometimes called cool-season crops, have a low base...
May 07, 2014
The pansy Grandio series is the newest addition to a well-established and highly beneficial pansy breeding program from Sakata Ornamentals. Known for the extra-large flowered series Majestic Giants, Sakata’s large-flowered Grandio series features...
May 07, 2014
If you have been looking for an easy-to-grow, colorful and not-found-everywhere perennial, look no further. Let me introduce you to the Tye Dye series of Phygelius. This series features four colorful cultivars: ‘Magic Mandarin’ (peachy, orange-...
May 07, 2014
In part one of this postproduction series, we explored the potential detrimental effects of ethylene exposure on bedding plants. In this part we will take an in-depth look at the effects of ethylene on 20 bedding plant species and the benefits of...
May 07, 2014
With so many choices, picking the crops that are sure to make your production lineup shine can be a challenging feat. GPN has assembled a snapshot of this year’s winning varieties to help you choose what makes the most sense for you to grow. These...
May 07, 2014
The Class of 2014 of GPN’s 40 Under 40 embody the future of the horticulture industry. Over the next 15 pages (and on the 40 Under 40 page on www.gpnmag.com) , you will have an opportunity to learn more about the men and women who hold the keys to...
May 07, 2014
MLD:  I’ve been thinking about parasites and saprophytes, the yin and yang of microbes in the greenhouse. All fungi sound scary to growers, but it is important for them to understand the difference. I like to define a parasite as an organism...
May 07, 2014
 Thanks to technology the old fashioned fold-up-and-stick-it-in-the-glovebox road map is rapidly becoming a thing of the past. Nowadays, most of us rely on a plug-it-in-the-cigarette-lighter global positioning system (GPS) system to help us...