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Figure 1. 'Star Gazer' oriental lilies (size 16/18 bulbs) treated with 4.0-fluid-ounce drenches providing flurprimidol at 0.0 to 4.0 mg a.i. per pot. Applying a single drench of 0.5 mg active ingredient (a.i.) per pot or two split applications of 0.25 mg a.i. controlled excessive stretch of Oriental lilies.
Height Control For Easter Lilies
Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there... Read more
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PGR Highlights: Uniconazole

How to use uniconazole PGR products, including safety information, keys for foliar application and substrate drenches and rates for different genera.

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Recent Articles ► PGRs
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What’s New In PGRs
April 2, 2013
Take a look at the new plant growth regulators hitting the market as well as the label changes and updated research that allows for new uses of old favorites.
How PGRs Make You Money
April 1, 2013
Plant growth regulators are invaluable tools to help control excessive plant stretch, but there are additional cost savings provided by using PGRs. Here are some of the economic advantages of using plant growth regulators to improve your bottom line.
Fine Americas Introduces Collate Plant Growth Regulator
March 15, 2013
Collate offers ethephon in a liquid formulation and can be used to increase lateral branching, delay flowering and inhibit internode elongation in a wide range of ornamental crops.
Poinsettia Height Control Strategies
July 27, 2012
Plant growth regulator application strategies include using Bonzi, Florel and Gibberellic Acid.
Mobile App For Calculating Plant Growth Regulator Applications Launched
March 2, 2012
The University Of New Hampshire Cooperative Extension's PGR Mix Master mobile app makes greenhouse calculations easy.
Fine Americas, Inc. Expands Its Piccolo Label In Canada
March 2, 2012
The plant growth regulator can now be applied to poinsettias and pot chrysanthemums.
Height Control For Easter Lilies
January 6, 2012
Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there is no data that shows how effective flurprimidol drenches are on Easter lilies. Researchers decided to find out.
Piccolo 10 XC Receives California Registration
November 14, 2011
The plant growth regulator is 10 times stronger than standard 0.4-percent formulations.
SePRO: Avoid Hachi-Hachi On Colored Poinsettias
October 3, 2011
The Hachi-Hachi label lists poinsettias as an approved crop for application, but university trials now show colored poinsettia bracts have some sensitivity to the SePRO product.
Control Stem Length With Liner Dips
September 13, 2011
Purdue researchers share their best practices for controlling stem length of common foliage annuals using PGR liner dips.
OHP Shares Augeo Results
March 27, 2011
After two years of testing, this new plant growth regulator is looking promising.
New Piccolo Plant Growth Regulator 10 Times Stronger Than Original
February 14, 2011
Fine Americas has launched Piccolo 10 XC plant growth regulator for use on bedding plants.
Avoiding Rookie Mistakes With PGRs
December 29, 2010
In many cases, the only way to learn plant growth regulators is the hard way. But veteran growers who can lean on experience have advice for up-and-coming growers.
Which PGRs Growers Prefer
December 29, 2010
Imagine you only have the option of using one PGR in production for all time: Which product would you use and why?
Plant Growth Regulator Guidelines
December 22, 2010
Properly using plant growth regulators will increase quality, but growers must avoid these costly missteps.