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February 28, 2001
Retractable roof Jaderloon announces receipt of a patent on a natural ventilation greenhouse roof design. The inflatable, heatable, sealable and retractable roof design is patented under the name "roll-a-roof." This system operates on top of the...
February 20, 2001
Please accept our apologies, but at this point in time this article is not available in electronic format. We will be more than happy to send you a copy of the article for you to read. Please contact our editor at gpneditor@sgcmail.com <mailto:...
February 20, 2001
Please accept our apologies, but at this point in time this article is not available in electronic format. We will be more than happy to send you a copy of the article for you to read. Please contact our editor at gpneditor@sgcmail.commailto:...
February 20, 2001
Please accept our apologies, but at this point in time this article is not available in electronic format. We will be more than happy to send you a copy of the article for you to read. Please contact our editor at gpneditor@sgcmail.com <mailto:...
February 20, 2001
  Please accept our apologies, but at this point in time this article is not available in electronic format. We will be more than happy to send you a copy of the article for you to read. Please contact our editor at gpneditor@sgcmail.com <...
February 19, 2001
This article is only available as a PDF. Click in the LearnMore box to download it. Please contact our editor at gpneditor@sgcmail.com with inquiries about purchasing reprints or having a copy of the article sent to you.
February 19, 2001
Please accept our apologies, but at this point in time this article is not available in electronic format. We will be more than happy to send you a copy of the article for you to read. Please contact our editor at gpneditor@sgcmail.commailto:...
February 09, 2001
Last month we discussed the importance of in-store message communicators such as POP materials, signage, etc., in influencing consumer purchasing behaviors by providing education and enjoyment. Selling the "experience" of buying — focusing on the...
February 09, 2001
When Shirley and Harlan Hamernik opened their greenhouse in Clarkson, Neb., they had no idea it would eventually lead them to such places as Siberia, Inner Mongolia and Tibet, not to mention the travel within the United States. They just wanted to...
February 09, 2001
In elementary school, one teacher taught me that there are two unlimited, renewable natural re- sources — water and air. Even then that was an exaggeration, and it definitely is today. We are all concerned about water shortage and pollution of our...
January 30, 2001
After WWII and the scientific advances in plant physiology and life cycles that enabled the floriculture industry to grow seasonal crops year round, peonies gradually fell out of favor. The GIs coming back from the war moved off the farm, and their...
January 30, 2001
Non-chemical alternatives to plant growth regulating chemicals have received a great deal of attention in recent years as tighter restrictions have been placed on agricultural chemical use. Some non-chemical methods are very simple, such as avoiding...
January 30, 2001
Heating Systems How does heat loss occur? Heat loss occurs from a greenhouse structure whenever the interior temperature exceeds the exterior temperature. The rate at which it occurs is affected primarily by the efficiency of the covering materials...
January 30, 2001
RICHARD LINDQUIST Professor and Associate Chair, Dept. of Entomology, The Ohio State University Happy 2001! Well, this is not a drill like it was last year, we have REALLY entered the new millennium this time with the beginning of 2001, so I hope...
January 30, 2001
Sarah, a senior at Michigan State University, believes you get out of life only what you put in. This honor student, three-time horticulture intern and member of MSU’s hort club should expect quite a bit. Sarah McQueen owes a lot to her teachers. It...
January 30, 2001
Cooling pads Cooling pads
January 10, 2001
For the past three years, I have been asked to review new disease control products for the ornamental industry. In 1999, I tried to list newer products and their activities, including the broad range of those products now available. In 2000, a two-...
January 10, 2001
Like any other greenhouse crop, growing greenhouse tomatoes is more than just planting some seeds and raking in the money. Here are a few suggestions to get you on your way. The production of greenhouse vegetables can be a lucrative business for the...
January 10, 2001
Plant growth regulators have been used for many years, primarily as a tool to obtain height control or to promote rooting. Today, there are many fascinating and innovative ways to use the tools of yesterday. Plant growth regulators are now being...
November 03, 2000
There have been some interesting new developments in the fight to control powdery mildew on greenhouse ornamentals since my last article on the subject (GPN February 1999). The number of plants suffering from powdery mildew continues to increase...
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