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 Greenhouse Production Research Group (GPRG)


To conduct fundamental and developmental research on production technologies, diseases, pests, and abiotic stresses for the greenhouse ornamental industry while safeguarding environmental quality, food, and worker safety. To transfer that technology to the industry through partnerships with state extension service and direct stakeholder interactions.

Wolfe Hall

USDA-ARS Greenhouse Production Research Group
University of Toledo, Mail Stop 604
2801 W Bancroft Street
Toledo, OH 43606

Production Technology
Pest and Diseases
Technology Transfer
Abiotic Stresses
Silicon Studies




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Nov 2012Today is a sunny day
Nov 2012Today is a sunny day
Nov 2012Today is a sunny day
Nov 2012Today is a sunny day

About Us

The Greenhouse Production research Group (GPRG), a work site of USDA-ARS Application Technology research Unit (ATRU) in Wooster OH was formed in 2002 in Toledo OH. Dr. Charles Krause initiated the team to research different ways to mitigate problems faced by floriculture growers in the great Lakes Region. By 2003, Dr. James Locke and Dr. Jonathan Frantz came on board to make the worksite fully operational.

Located on the University of Toledo main campus, the GPRG is equipped with offices, labs and greenhouse space with additional greenhouse space at the Toledo Botanical Garden for meetings and focus sessions. Progress since the inception of the work site has been noted in the innovation of the Virtual Grower software, and research with silicon nutrient and its effects on disease in media and hydroponic studies with different floriculture crops.

Personnel located in Toledo, OH bring together plant pathology and horticulture while conducting on-site research in greenhouses while focusing on needs of local growers.