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March 01, 2002
Here it is, the middle of the plug season, and plug growers are wondering how to keep their plugs from stretching or flopping. With short days and low light conditions in much of the country during this time of the year, small seedlings want to...
February 18, 2002
With all the well-deserved attention that coleus hybrids are receiving for their landscape and interiorscape performance, it seems like a good time to take a look at some of the closer relatives of coleus that have the same strong characteristics...
February 18, 2002
What are greenhouse curtains? Greenhouse curtain systems are called shades, screens and even blankets. They consist of moveable panels of fabric or plastic film used to cover and uncover a greenhouse. Curtains may cover an area as small as a single...
February 18, 2002
One new development important to our understanding of Pythium species comes from the findings of molecular geneticists. We have long thought of Pythium as a “water mold fungus”— now it has been reclassified according to information gained from...
February 18, 2002
The following poinsettia cultivars are recommended for growers to consider. The recommendations are based on university trials and observations of commercial crops. Primarily, this list includes cultivars that the authors have grown at least two...
February 18, 2002
The following are the cultivars that we judged to be the best of the 2001 trials. In most cases, they are newer cultivars that offer a new characteristic, an improvement over current cultivars or fill a void in availabilities. A few are older...
January 16, 2002
James E. Faust Assistant Professor, Clemson University, Clemson, S.C. About 12 years ago, I heard Michigan State professor Dr. Will Carlson argue for regionalization of floriculture research. He suggested that we don’t need to be duplicating...
January 16, 2002
As we have seen in the last couple of years, growers and gardeners alike were far more interested in the many new vegetative cultivars introduced than they were in new seed cultivars. This trend seems likely to continue for the foreseeable future;...
January 16, 2002
Hybrid lilies are excellent cut flowers due to the availability of flowers with various colors and shapes. Extensive inter-species hybridization has resulted in numerous cultivars, and many new cultivars are introduced to the market each year. While...
January 16, 2002
With the coming of the new year, people commonly spend time reflecting on the past year — what were the biggest events, who were the most important people. Rather than immerse ourselves in history, I want to encourage everyone to plan the future,...
January 16, 2002
Last month’s editorial discussed the price point on poinsettias and suggested some possible explanations for how the pricing situation got to the present stage; this month looks at some specific changes growers can make to take control of the...
January 16, 2002
The experience of Janna Ellen Hogue, a junior at Iowa State University and winner of the 3rd Annual GPN/Nexus Intern Scholarship, should encourage and inspire students, universities and greenhouse operations alike to continue supporting internship...
January 16, 2002
Holmes to make home of OFA After an extensive search process that began last summer, the Ohio Florists’ Association (OFA) has named John R. Holmes, CAE, as the association’s new executive director. Holmes will begin at OFA on February...
January 14, 2002
We’ve noticed, GPN and I that is, that there is very little quality information about the automated side of our industry. Consequently, we decided that a monthly column about greenhouse automation might be in order. We’ve noticed, GPN and I that is...
January 14, 2002
Plug tray Blackmore’s new 288 X CE Deep Tray is designed for field production of tomatoes along with other crops. The depth of the tray is approximately 1 1/2 inches and soil volume is 9.4 cc. The eight-degree taper permits plants to be...
January 14, 2002
Is your garden center among the Certified?   Proven Winners announces the successful debut of their “Certified Retailer” incentive and education program for independent retailers of Proven Winners products. This national...
January 11, 2002
Regal geraniums (Pelargonium x domesticum) have been popular garden and patio plants since hybridization of this class began in the 1830s. The class combines the genetics of as many as nine pelargonium species. After introduction into the United...
January 11, 2002
Does ammoniacal nitrogen cause stretch in plants, or conversely, does the alternative nitrogen source, nitrate, cause compactness? What does your experience indicate? Do you have all of the facts? Because the application of high-nitrate fertilizers...
January 11, 2002
What are the advantages of insect screening? Properly installed insect screening restricts the entry of insects and pests and reduces pesticide use. What are the disadvantages of insect screening? The disadvantages of insect screening include...
January 11, 2002
The natural human tendency when confronted with a problem is to spring into action. For the ornamental producer, this means you want to spray something on the disease. It is hard to stop and take the time to understand the situation, but reflection...
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