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August 10, 2004
Are you ready for another twist to growth regulator applications for poinsettias? Many growers become very structured and resistant to change when it comes to how to grow poinsettias. Poinsettias are such a big crop with a long crop time and many...
July 08, 2004
Now that the spring season is behind everyone, it’s time to look back at how well you were able to grow vegetative annuals. I know I have written about growth control of these plants before, but I think this is a good time to reiterate what was...
July 08, 2004
We are seeing rapid growth in the market for plants that can work in 41?2-inch to 1-gal. containers. In the industry’s quest for what’s new to be put in smaller containers, we sometimes overlook old favorites. An example is ivy geraniums; our...
June 18, 2004
Growers are challenged to keep 4- and 5-inch annuals with trailing, spreading growth habits sufficiently compact. It is of great interest to growers to find plant growth regulators (PGR) that stimulate lateral bud development and branching and...
April 16, 2004
As consumers realize their appeal, pansies and violas are increasingly being planted outdoors in late summer and early autumn. Consequently, the production of flowering pansy continues to increase, especially for sales in late summer. To meet...
December 12, 2003
Though the Scrophulariaceae and Verbenaceae family names may not sound too familiar, you've most certainly grown some member species. Here, we will look at the currently known responses of perennial plants from these families to plant growth...
November 06, 2003
Each year when we do this special chemical section in GPN, I'm a little envious of the insect and disease folks; they always seem to have new stuff to talk about. New plant growth regulators (PGR) just do not come along as fast. In fact, for the "...
November 04, 2003
Increasingly, greenhouse growers are applying plant growth retardants to bedding plants during the plug stage. Spraying plants when they are in the plug stage is a very efficient way to treat them, since there are so many in a small area. It's also...
August 08, 2003
A number of new and innovative methods of applying plant growth regulators (PGRs) have gained EPA approval in recent years. PGRs may be applied by "sprench" (combination of spray and drench applied as a high volume, low concentration spray to the...
July 10, 2003
Fuel prices continue to fluctuate, causing heartburn and headaches for growers as they receive their monthly fuel bills during periods of cold weather. When fuel costs are high, some growers in cold climates (such as the Northern United States) have...
July 10, 2003
FloraStar, in cooperation with the University of Florida, has selected the winners of the first FloraStar Elite Performer trials that are designed to evaluate how well a variety performs for the grower. The program will focus on vegetative annuals,...
July 10, 2003
The following report of diascia and nemesia trials conducted at the University of Florida trial gardens in Gainesville, Fla., was conducted in the winter of 2002. Gainesville is in USDA Zone 8b and is part of an ongoing research program to evaluate...
July 10, 2003
Have you noticed how popular calibrachoas have become? It is an interesting crop. They can either look very nice or very straggly. The flowers are small, and unless there are lots of them, the plant does not give much of a show. In terms of...
July 10, 2003
Bare root perennials are dormant plants with the soil removed from the roots. They are typically field grown for a period of time, usually one year, and harvested. Once the plants are dug, the tops are trimmed down to approximately 1 inch from the...
July 03, 2003
Methyl bromide is an important part of ornamental production. The combination of methyl bromide and chloropicrin has long been used to control weeds, nematodes and plant pathogens like Pythium. The majority of this fumigant is used for strawberries...
July 03, 2003
The Lamiaceae (mint) family is a relatively small family, containing about 180 genera of herbs and shrubs, only about 68 of which are produced commercially. These cultivated genera include many of our culinary (Mentha, Ocimum, Origanum, Perilla,...
July 03, 2003
Now that the 2003 spring season is behind us, it's time to recap problem areas. Working with my clients and traveling around the United States giving talks, I can narrow down the number of areas that need work to five. There are obviously more...
July 02, 2003
Hardy hibiscus is an old-time garden favorite riding a new wave of popularity. Hibiscus moscheutos is a marshland native of the eastern United States and has hardiness in USDA Zones 4-9. With new developments in plant breeding, today's hibiscus...
March 18, 2003
As we complete more research on plant response to plant growth regulators (PGRs), it may be helpful to start looking for any commonalities in the responses by plants of the same genus or family. Using information from our own research or other...
March 18, 2003
This is the season when every grower starts worrying about how to control plant growth, whether plugs, bedding flats, pots or baskets. All growers should be doing whatever they can to control temperature, provide more light, reduce humidity,...
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