PGRs For Summer Perennials

March 25, 2014

PGRs For Summer Perennials: Agastache, Monarda and Perovskia

Agastache, monarda and perovskia  are vigorous plants with an upright growth habit. Watch this episode of FloriCAST for PGR rates to keep these plants in proportion to their pots.

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December 20, 2013

Branching Agents Enhance Herbaceous Perennial Plant Liners

Take a look at the results of research on a chemical approach to branching herbaceous perennial liners using three chemistries.

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May 21, 2013

PGRs For Summer Perennials: Agastache, Monarda and Perovskia

Agastache, monarda and perovskia  are vigorous plants with an upright growth habit. Watch this episode of FloriCAST for PGR rates to keep these plants in proportion to their pots.

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May 13, 2013

Piccolo 10XC: The World’s First Clear Paclobutrazol PGR

Kevin Forney, Technical Services Manager for Fine Americas, Inc. talks about the benefits of using Piccolo 10XC, the world’s first clear paclobutrazol PGR. He covers current research on pot sunflowers, coleus, garden mums and veronica.

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Applying Paclobutrazol to Bedding Plants

May 13, 2013

Applying Paclobutrazol to Bedding Plants

Dr. Erik Runkle, associate professor of horticulture at Michigan State University, covers the basics of successfully applying paclobutrazol products to bedding plants.

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The Best PGR Concentrations To Use On Osteospermum

April 16, 2013

The Best PGR Concentrations To Use On Osteospermum

The University of New Hampshire conducted research on PGR foliar sprays and substrate drenches on osteospermum. In this episode of FloriCAST, see the results of which concentrations of active ingredients gave the best results.

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Collate logo

April 2, 2013

What’s New In PGRs

Collate from Fine Americas Collate Plant Growth Regulator offers all the proven benefits of ethephon in a concentrated liquid formulation and contains 2 pounds of active ingredient per gallon. It can be used to increase lateral branching, delay flowering and inhibit internode elongation in a wide range of ornamental crops, including azaleas, chrysanthemums, geraniums, lantana, petunias and verbena. In addition, it controls plant height and stem-topple in daffodils and hyacinth. Fine-Americas.com Verve from Nufarm Americas Verve plant growth regulator has a wide range of applications to enhance plant quality and appearance. Its active ingredient, ethephon, can help shorten and strengthen stems, induce flowering, suppress fruit production on ornamental trees and seedhead formation in grasses, control parasites such as mistletoe and promote leaf drop to allow more timely digging of nursery stock. Rick Fletcher, technical service manager for Nufarm, points out that the product label for Verve is unique in that […]

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April 1, 2013

How PGRs Make You Money

How do you know when it is cost-effective to use plant growth regulators (PGRs)? Certainly they can be used to regulate plant growth and size, but that is just one part of the equation. Chemical costs are the primary concern to growers. There is certainly a variable cost associated with using plant growth regulators. The growth controlled with PGRs allows for tighter plant spacing. Thus, there is less square foot per week cost, and a lower fixed cost assigned to the pot. So, we need to evaluate if the fixed cost savings is greater than the variable cost of the PGR application. To provide an example, let’s use geraniums grown in a 4-inch square pot. This geranium crop will be grown for 10 weeks. For four weeks, plants will be placed pot tight at 4 inches by 4 inches. For the final six weeks, the plants will be spaced at […]

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Fine logo

March 15, 2013

Fine Americas Introduces Collate Plant Growth Regulator

Fine Americas, Inc. recently announced the U.S. introduction of its new Collate plant growth regulator for greenhouse ornamentals. Featuring the active ingredient ethephon, Collate can be used to increase lateral branching, delay flowering and inhibit internode elongation in a wide range of ornamental crops. “We’re excited about the addition of Collate to our growing line of ornamental plant growth regulators,” says Greg Johnson, president of Fine Americas. “Collate offers all the proven benefits of ethephon in a concentrated liquid formulation containing two pounds of active ingredient per gallon. We believe it’s the perfect complement to our other floriculture PGRs, including Piccolo 10XC, Piccolo, Configure, Concise and Dazide. Kevin Forney, technical services manager for Fine Americas, says Collate offers key benefits in a number of ornamental crops. “It can be used to increase lateral branching in many popular ornamental varieties, including azaleas, chrysanthemums, geraniums, lantana, petunias and verbena,” Forney says. “Plus, […]

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September 7, 2012

Augeo PGR Trials On Three Crops

Better branching, more flowers and enhanced tillering are some of the benefits of using Augeo PGR from OHP. Listen to Dave Barcel explain results of Augeo trials conducted on verbena, poinsettia and pennisetum. For more, visit OHP.com.

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July 27, 2012

Poinsettia Height Control Strategies

The use of a graphical tracking system is highly recommended for poinsettias. With similar day and night temperature setpoints, the need for chemical height control is minimal for many varieties. When day temperatures are more than 5°F higher than night temperatures, a Cycocel spray at 750 to 1,000 ppm one to four times after pinching is sufficient in Northern climates to control stem extension. When day temperatures are greater than 80°F and night temperatures are greater than 70°F, spray a tank mix of Cycocel at 1,000 ppm plus B-Nine at 1,500 ppm one to three times, one to four weeks after pinching. Bonzi sprays can also be used at 5 to 10 ppm under these warm growing conditions. Proper growth regulation before and after the pinch, combined with high light conditions are critical to avoid early internode stretch and to build a sturdy plant. Avoid B-Nine and Bonzi sprays after […]

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April 25, 2012

Timing Fungicides And PGRs To Control Greenhouse Pests

The management of pests and diseases during the production of greenhouse crops is not an isolated event. As such, interactions may occur that can have a significant impact on the success of any pest management strategy. For example, under conditions of high relative humidity (greater than 75 percent), naturally-occurring populations of beneficial or insect-killing fungi may cause substantial mortality of insect and mite pests. Although beneficial fungi typically require high relative humidity, these fungi can be effective when the microclimate relative humidity around the spore (e.g., leaf surface) is high. This can occur even when the relative humidity within a greenhouse is less than 50 percent. In addition, the effectiveness of beneficial fungi can vary depending on light intensity, plant size and plant architecture. Fungicides used to manage plant diseases may create issues associated with the compatibility of these chemicals and beneficial fungi, such as Beauveria bassiana, Metarhizium anisopliae and […]

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