Research Institute

The Horticultural Research Institute proudly supports scientific research and horticultural students for the advancement of the industry. HRI was established by industry leaders on the premise that no one could better direct needed research to advance horticulture than the very people who work in it, day in and day out.

Jill Calabro, Ph.D. April 24 2018

USDA APHIS has announced new areas being brought under the imported fire ant (IFA) quarantine, effective immediately. Counties in North Carolina and Tennessee are impacted.

  • North Carolina: all of Warren County
  • Tennessee: all of Cumberland, Hamblen, and Jefferson Counties, as well as portions of Trousdale County
IFA infestations wer...

Jill Calabro, Ph.D. April 24 2018

The Protecting Bees website now offers a searchable tool to help identify plants that are attractive to bee pollinators.
The ‘Find Plants’ function enables a search for pollinator-attractive plants based on zip code, desired bee type, bloom period, sun exposure, soil moisture, and level of be...

Jill Calabro, Ph.D. April 10 2018

In late March, USDA formally announced that it has no plans to regulate plants developed using new breeding techniques, such as gene editing, as long as the plants are created without the use of a plant pest vector or donor and they themselves are not plant pests.
This continues USDA’s previous position and provides clarification following proposed revisions regarding...

Jill Calabro, Ph.D. March 27 2018

An article in the new issue of the Journal of Environmental Horticulture (JEH) summarizes studies conducted to determine the sensitivity of Calonectria pseudonaviculata, the causal agent of boxwood blight, to select fungicides.
Boxwood blight has been known to b...

Craig Regelbrugge March 27 2018

AmericanHort enthusiastically welcomed Agriculture Secretary Sonny Purdue’s announcement that the U.S. Department of Agriculture (USDA) is allocating almost $70 million in new funding for invasive plant pests and disease projects. The funding is intended to prevent the introduction or spread of pests that threaten U.S. agriculture and the environment and to sustain the infrastructure nece...

Jill Calabro, Ph.D. February 27 2018

The Horticultural Research Institute (HRI), the foundation of AmericanHort, has announced the portfolio of research projects receiving funding in 2018. $232,000 will be provided to 10 projects to investigate solutions in the areas of horticultural production, pest management, environmental stewardship, and business and marketing.

Jill Calabro, Ph.D. February 27 2018

Your input is needed!
The Economic Committee of the National Initiative for Consumer Horticulture (NICH) is seeking insight into benchmarks and tools used by our industry to manage their businesses – basically what numbers are important to our industry and are there any gaps.
By understanding the economic data, NICH will identify ways to increase ...

Jill Calabro, Ph.D. January 30 2018

A ban on dicamba herbicide applications in Arkansas was approved recently in an effort to mitigate damage to non-target plants. The new regulation prevents dicamba applications from April 16 through October 31, but exempts applications to turf, ornamentals, some forests, pastures, and rangelands. The Arkansas Legislative Council will revisit this issue for the 2019 growing season.

Jill Calabro, Ph.D. January 16 2018

The controversy over California’s “cancer-causing” label requirement for glyphosate is intensifying.
Attorneys general from eleven other states filed a ‘friend of the court’ brief in the challenge of the State of California’s decision to label glyphosate as a carcinogen, arguing that this mandate forces businesses to state false and misle...

Jill Calabro, Ph.D. January 16 2018

A newly published research article compared the uptake and dissipation of two neonicotinoid residues in nectar and foliage of Ilex and Clethra. The research was led by Dr. Dan Potter, University of Kentucky, and partially funded by the Horticultural Research Institute (HRI) through the Pollinator Stewardship Initiative.
The two neonicotinoids evaluated wer...