View All: Articles

June 08, 2012
These days, greenhouse growers are faced with increased competition and the rising cost of labor, energy and crop inputs. To maximize return on their investment, growers are gradually diversifying their crops to include hydroponic vegetables. Smart...
May 10, 2012
Temperature and light conditions in a greenhouse vary significantly throughout the year, especially in northern, temperate climates. During the winter, our environmental concerns for greenhouse production typically focus on low light levels, short...
May 10, 2012
The greenhouse environment, including light and temperature, has a large impact on our ability to grow and schedule high-quality greenhouse crops. Additionally, energy costs are second only to labor for many in today’s greenhouse industry. As a...
April 20, 2012
Western flower thrips (Frankliniella occidentalis) is the most destructive insect pest of greenhouses worldwide causing both direct and indirect damage to a wide range of horticultural crops. The primary means of dealing with these pests in...
March 13, 2012
Ornamental herbaceous perennials represent approximately 14 percent of the total value of floriculture crop production in the United States. An increasing number of perennials are grown and marketed in flower. Michigan State University faculty and...
March 13, 2012
In the process of solving a water source problem about three years ago, Metrolina Greenhouses learned a lot about the wide range of issues potentially affecting their water quality. As a result, they embarked on a deliberate program to evaluate the...
March 13, 2012
Energy is typically the second largest overhead cost in the production of greenhouse ornamentals. For the past several years, one of our major research thrusts has been to reduce heating inputs as well as reduce electricity costs through more...
February 09, 2012
As energy prices continue to remain high, growers are keen on energy conservation strategies, especially when their operations are located in colder climates. Ultimately, growers are interested in reducing the amount of energy required to produce a...
January 11, 2012
The challenge in today’s business world is to produce more at less cost. The greenhouse industry in this regard is no different than any other business. Historically, most greenhouse owners and managers were and still are a conservative lot. Of...
December 09, 2011
I’ve been receiving an increasing number of inquiries from greenhouse growers about lighting guidelines for growing fruiting vegetable crops. Certainly for vine crops like tomato, pepper and cucumber, the daily light integral (DLI) is the biggest...
November 10, 2011
In this issue, we present a summary of diseases that occur in lavender. To view this layout, please select the PDF option below.
September 21, 2011
Paclobutrazol is probably the most widely used active ingredient used to regulate extension growth of floriculture crops in the United States. Paclobutrazol was introduced to the floriculture industry as Bonzi (Syngenta Professional Products) over...
September 21, 2011
Many perennial growers have been trialing the plant growth regulator Configure to improve various aspects of their perennial programs. Growers are seeking to improve branching, increase the number of flowers produced, and to improve plant quality....
August 24, 2011
Check out these new cut flowers that will keep your buckets and pockets full. The cut flower industry needs to regularly introduce new cut flower species to keep and increase consumer interest. With all the new introductions growers have a difficult...
May 19, 2011
Find out why breeders are working hard to introduce new and exciting eucomis varieties to the market. Eucomis, commonly known as pineapple lily, is an easy-to-produce perennial, native to South Africa. The flower spikes are a dense column of waxy,...
April 13, 2011
Using proper media is crucial to achieving a successful hanging basket. As the popularity of mixed baskets and containers continues to rise, many growers face space constraints in their greenhouses because of limited hanging baskets space. In the...
March 16, 2011
LED technology has been around for a while now but has yet to make its way into the U.S. horticulture market. Here are some considerations for those contemplating a transition. “Live in rooms full of light.” — Cornelius Celsus That’s an interesting...
February 22, 2011
An increasing number of greenhouse growers are familiar with the term “daily light integral” or DLI, which quantifies the amount of photosynthetic light received during one day. The unit for DLI is mol∙m-2∙d-1, which is the number of particles of...
January 27, 2011
In the November 2010 issue, I discussed the fundamentals of how temperature influences the development and timing of greenhouse crops. Conceptually, floriculture crops respond to temperature similarly: they develop in response to the average daily...
January 27, 2011
Integrate maintenance into your winter schedule for a more productive spring Ask a grower about maintenance, and you’ll learn volumes about their greenhouse range. Growers approach the job of maintenance in different ways; many find logged data,...