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December 31, 2001
How many trucks does it take to deliver a rose? If that rose is from Mexico, it could take quite a few. Mexican carriers, of flowers, fruit and any other cargo coming into the States, were scheduled to have full access to U.S. highways as of...
December 31, 2001
What is greenhouse film? Greenhouse film is generally ultraviolet-protected polyethylene (similar to sandwich bags) with a thickness from 2-8 mm in the United States. What are the three different categories of glazing? Type I: Thin films,...
December 28, 2001
The most important goal in the application of agricultural pesticides is to get uniform distribution of the chemicals throughout the crop foliage. Underdosing may not give the desired coverage and control needed. Overdosing is expensive as it wastes...
December 28, 2001
Tuberous root development and flower induction of dahlia are controlled by photoperiod; however, photoperiod manipulation is generally not used in their production. Seed-propagated plug production typically takes place under the short days of late...
December 28, 2001
Tall, open spikes of bell-shaped flowers mark the distinctive cut flower ‘Canterbury Bells’, or Campanula medium. The Champion series sports 1- to 1 1/2-inch-long, upward-facing flowers in four colors: Blue (actually purple), Pink (nice, clear pink...
December 28, 2001
Last year, for the first time, GPN published a table, summarizing efficacy results for fungicide and bactericide ornamental trials at Chase Research Gardens. This year, we decided to do the same thing as an annual update. This chart represents five...
December 28, 2001
This is the time of year when the editors of GPN ask for information on what has been happening with insecticides and other related chemicals and predictions for where they are headed in the near future. Based on recent events, it’s difficult to...
December 12, 2001
The temperature and light environment delivered to a pansy crop has a great impact on crop timing and quality. In general, the highest-quality pansies are grown under high light levels and cool temperatures, while the poorest quality occurs under...
December 03, 2001
A new introduction to American Takii’s lineup of unique plants is the Lobelia erinus ‘Aqua’ series, and the following will help the grower produce the best lobelia possible. ‘Aqua’ made its debut with four dynamic colors: Lavender, Blue with Eye,...
December 03, 2001
Ned Bradford’s dream of owning his own greenhouse business may have been planted in his future long before he even knew it would one day become a reality — when he was just a young boy pulling weeds for a quarter at his grandfather’s landscape...
December 03, 2001
As you can probably imagine, given the controversial nature of the editor’s report in the September and October issues of GPN, my phone and E-mail have been filled the past month with grower, supplier and retailer comments. (Turn to page 82 for a...
December 03, 2001
Substrate testing is a great tool to help ensure a healthy, profitable crop and to identify improper nutritional trends before problems occur. For most situations, monitoring pH and EC (electrical conductivity) in the greenhouse is sufficient to...
December 03, 2001
Rudbeckia, or black-eyed susan, is a well-known perennial garden plant. The two most commonly grown species are Rudbeckia fulgida and Rudbeckia hirta. R. fulgida is a perennial herb that grows to a height of at least 24-30 inches; R. hirta is often...
December 03, 2001
Most growers are familiar with aphids, but did you know there are aphids that attack the roots of plants? Yes, the roots. You may be used to looking for aphids on foliage and stems, but with these aphids, you need to pull off the pot and look...
November 30, 2001
I know that GPN caters primarily to floriculture producers. But, just in case there are some readers out there wanting to broaden their offerings into the world of greenhouse tomatoes, GPN has asked me to provide some information to you. What we...
November 30, 2001
As with Botrytis and Root Rot, covered in the September and October issues of GPN, Fusarium can ruin a beginning grower’s love for floriculture. Not only is it hard to find the fungus, but it also strikes quickly and causes almost instant damage to...
November 30, 2001
A decade ago, only a handful of growers were commercially producing perennials, and most of them were not even considered greenhouse operations; they were classified as nurseries. Nurseries have usually been thought of as woody plant producers,...
November 30, 2001
Greenhouse carts have gone through many incarnations. The latest is a color-coded, name-plated, transportation and merchandising machine that won’t get lost and doesn’t cost too much. At least that’s what growers want and retailers expect. The...
November 06, 2001
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October 26, 2001
The year 2001 will go down in history as a year of both tragedy and unity. Last month’s horrific attack of terrorism brought our nation and the world together and renewed a sense of national pride, patriotism and solidarity that had been...