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Douglas L. Airhart, Kathleen M. Airhart, and John Tristan

Managers of greenhouses used in vocational training or therapeutic programs often face pesticide use restrictions due to medical safety codes, possible sensitivity due to client medications, frequent presence of patient groups, or the added risk of exposure to clients with limited awareness. This review of three horticultural therapy programs emphasizes the practice of preventive measures, manual controls, and limited chemical methods to discourage pest problems and outlines pest control strategies that may not be feasible in commercial greenhouses. The importance and application of integrated pest management and biological pest controls are discussed. Procedures and client activities for sanitation, cultural controls, pest monitoring, and safe application of spray solutions are presented. Client work habits and skills may be developed using the tasks suggested for pest control, and various skill competency levels may be incorporated into the management scheme. The need for client training and task accomplishment may encourage alternative labor-intensive pest-control methods in therapeutic greenhouses.

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Derrick R. Stowell, J. Mark Fly, William E. Klingeman, Caula A. Beyl, Angela J. Wozencroft, Douglas L. Airhart, and P.J. Snodgrass

While horticultural therapy (HT) has a long history in the United States, the profession has not had the acceptance and growth that related fields, such as art, music, recreational, occupational, and physical therapies have experienced. The objective of this study was to identify the current challenges and opportunities of HT in the United States. Maximum variation sampling was used to select current and former members of the American Horticultural Therapy Association (AHTA) for interviews. A total of 27 participants were interviewed between Nov. 2019 and Jan. 2020 using semi-structured qualitative interviews by Zoom. The interviews revealed six themes: 1) current state of the profession, 2) AHTA operations/structure, 3) education/credentialing, 4) funding/job opportunities, 5) public awareness/networking, and 6) research. This paper will discuss the challenges and opportunities presented in the six themes and provide recommendations for the future growth of the HT profession.