Plant Health

Online Nutrient Management Course Offered in July

In July, the University of Florida IFAS Extension will offer a course on Nutrition Management. This is the second course of the award-winning Greenhouse Online Training courses offered by the University of Florida. The course... more »

Spear Bioinsecticide Earns EPA Green Challenge Chemistry Award

Vestaron Corporation's bioinsecticide Spear has earned recognition from the Environmental Protection Agency via its Green Chemistry Challenge Awards Program. Since 1996, the EPA in partnership with the American Chemical Society Green Chemistry Institute has awarded... more »

New Test Available for Detecting TRV

Agdia has announced the commercialization of a rapid, PCR-alternative testing to detect tobacco rattle virus (TRV). Tobacco rattle virus, or tobravirus, affects 400 species of ornamentals, vegetable plants and weeds. Symptoms of TRV vary according... more »

Improving plant shelf life with fungicides

{Sponsored} Due to the lingering effects of the COVID-19 pandemic, many independent greenhouses and nurseries have had to adjust their daily business operations — including how to better prepare plants for shipping, unexpectedly long shelf life... more »

APHIS Declares Elimination of Ralstonia Incidents

On June 11, the United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and its State partners announced they have successfully completed actions to eliminate Ralstonia solanacearum race 3 biovar 2 from U.S. greenhouses.... more »

Margery Daughtrey downy mildew

New Downy Mildew Species Named in Honor of Cornell Researcher

The practice of honoring individuals by incorporating their names into biological nomenclature has a long history. There are species named after scientists like Charles Darwin (Geochelone nigra darwini) and figures in popular culture (Notiospathius johnlennoni).... more »

UF IFAS Online Training Program Adds New Videos

The University of Florida's IFAS Extension Greenhouse Training Online program is now offering video content on a new YouTube channel ( New videos in English and Spanish walk viewers through the process of petiole sap testing... more »

BioWorks Hires New Biological Solutions Advisor

Erik Hansen has been named biological solutions advisor at BioWorks. Hansen will be responsible for increasing BioWorks' ability to deliver personalized solutions, programs and support to customers in the Western provinces of Canada and the... more »

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GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.
Ben Vliestra
Sidney Phelps
Jennifer Moss
Daniel Norden
W. Garrett Owen
Jessica Montgomery
Elien Peters
Rose Oberholzer
Nikki Melin

February GPN
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