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August 20, 2002
In 1988, research conducted by Dr. Jim Barrett at the University of Florida demonstrated the potential of Bonzi (paclobutrazol) drenches for poinsettia height control. This technique proved to be particularly effective when used late in the...
August 20, 2002
Hydroponics was once thought simply to be the growing of plants without soil. It has since evolved into a science--the growing of plants in a nutrient solution with or without an inert medium such as gravel, sand, peat, vermiculite, perlite,...
August 09, 2002
The most important primula species in production today include English primrose or acaulis primula (Primula vulgaris, synonym P. acaulis), polyanthus, polyantha primrose or hybrid primrose (P. xpolyantha), fairy primrose or baby primrose (P....
August 09, 2002
Tulips are a good example of a flower bulb crop that can be adapted to hydroponic culture. In Holland, approximately 30-35 percent of the cut tulip crop is forced hydroponically, and we have been evaluating this production method at Cornell over the...
August 09, 2002
Growing annual and perennial flowers for cutting during the summer is becoming a popular way for greenhouse operators to bridge the spring bedding plant and holiday potted crop seasons. In many respects, outdoor flower crops, particularly annuals,...
July 09, 2002
I selected the following plants because they are easy to produce or offer a very specialized look. All of these plants have a place in the component plant world and most will add something different to any container. This is by no means all of the...
July 09, 2002
Well, believe it or not, it’s time for another poinsettia season! Some of you are already tired of poinsettias, having done poinsettia stock plants since last spring. Other growers are just rooting bought-in cuttings and potting up finished...
July 09, 2002
Poinsettias can, at times, be a problematic crop, but being aware of the more common nutritional, physiological and insect and disease-related problems encountered during production can help reduce the headaches. By watching for potential problems,...
July 09, 2002
With the advancement of perennial production, many operations are looking at their current fertility programs only to discover the traditional practices used with greenhouse crops aren’t always sufficient with many perennial crops. With a shift in...
July 09, 2002
B-Nine and Cycocel have been effectively used as a tank mix growth regulator application for many years. The major benefit of this tank mix is that it provides an easy-to-apply, medium-activity growth regulator application. The spray volume is not...
July 09, 2002
Eye-catching color and vigorous growth have brought nothing but popularity for Calibrachoa, and it has become one of the industry’s hottest vegetatively propagated specialty annuals. Calibrachoa’s petite, single, petunia-like flowers, finely...
June 20, 2002
Dallas Johnson Greenhouses has embraced sensible automation in many areas of its operation. But the biggest reason for improved shipping efficiency has been a conceptual change. The centerpiece of the change is a large staging area that is used to...
June 11, 2002
There are over 30 cultivars of ornamental peppers available. Many of the older cultivars like ‘Filus Blue’ or ‘Bolivian Rainbow’ are tall-growing and make excellent background plants in the landscape. Plant breeders at the USDA in Beltsville, Md.,...
June 11, 2002
One of the main advantages of a retractable roof system is that the size of the structure is not limited by the restrictive capacity of mechanical ventilation systems. This allows the total growing area to have fewer “edges,” resulting in a more...
June 11, 2002
Are you looking for a new potted plant that doesn’t need pinching or disbudding; a fast crop for hanging baskets; an unusual plant to make your container gardens stand apart from the competition; top-quality plants that are easy to grow with no...
June 11, 2002
One of the keys to a successful scouting program is being able to accurately identify the pests and diseases you come in contact with. The following is a review of the most prevalent greenhouse mites. Two-spotted Spider Mite (Tetranychus urticae):...
May 09, 2002
Last month’s article focused on options for material movement when growing on the floor, but what about growing on bench systems? Creating the proper environment for crops should be the single most important criterion when deciding on a production...
May 07, 2002
To effectively implement a mite management program, you must first identify the mite species, understand its life cycle and determine whether populations are at an economically damaging threshold. This is accomplished through a scouting plan that is...
May 07, 2002
Controlling fertilizer and water use and runoff is a necessity for some businesses due to their proximity to environmentally sensitive natural areas or water sources. Reducing water and fertilizer use for many businesses, however, is becoming...
May 07, 2002
During the Victorian period, flowers were associated with emotions, strengths or moral qualities. Several legends in the naming of the flower forget-me-not suggest everlasting friendship, remembrance and eternal love. These correlations are still...
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