Friday, April 20, 2018
University of Hawaii at Manoa
University of Hawaii System
College of Tropical Agriculture and Human Resources
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The Academic Program

PEPS Academic Programs

Agriculture, urban, and natural environments are severely affected by established and invasive plants, animals, arthropods, and disease-causing organisms. Management of these pests and pathogens is essential to preserve the economic and ecological future of Hawai'i and the Pacific Basin. The need to protect our natural resources and the environment using methods with low non-target impacts have resulted in a focus on using biological control, integrated pest management, cultural, traditional, and genetically-based methods. The faculty in the PEPS Department use cutting-edge research tools to address the challenge of plant and environmental protection and food security and develop solutions for rational pest management and conservation of endangered species that have impact locally and globally.  Students are prepared for employment in agricultural and urban pest management, science education, government, industry, and environmental resource management. Undergraduate students will be well-prepared for professional and graduate studies.

The PEPS Department offers the following programs:

BS degree in Tropical Agriculture and the Environment

MS and PhD degrees in Entomology 

MS and PhD degrees in Tropical Plant Pathology 

Careers for PEPS graduates

  • Agricultural production (farming, crop protection advising)
  • Government agencies (EPA, FDA, USDA-APHIS, FBI, HPD, HDOA, HDOH, FWS, NPS)
  • Commercial research (pesticide development, genetic engineering, seed technology companies)
  • Science education (e.g. high schools, media)
  • Environmental management (EPA, HDoH, DLNR, FWS, NPS)
  • Consulting (private and business)
  • Business (fertilizer and pesticide sales)
  • Management with private industry (e.g. pesticide development)
  • Service-oriented entomological services (e.g. urban pest control)
  • Teaching, research, and extension at universities and colleges


Undergraduate students in the TPSS program are mentored by the program mentors: Dr. Ken Leonhardt ( in the TPSS Department or Dr. Helen Spafford ( in the PEPS Department for the program and specializations. Each student may also identify a faculty member in TPSS or PEPS to act as a mentor in the student's area of interest and specialization.

Undergraduates are required to consult with a CTAHR advisor prior to registration each semester. Go to for more information. Academic advisors are available by appointment only, Monday-Friday from 8:30 a.m.-3:30 p.m. (except holidays). Appointment website: Gilmore Hall, first floor, email:

Graduate students are advised by a research program advisor or initially, by the department's graduate program chairperson until a research program advisor is identified.

Contact Dr. Mark Wright for information about the Entomology Graduate Program

Contact Dr. Brent Sipes for information about the Tropical Plant Pathology Graduate Program. 


Studies in Plant and Environmental Protection Sciences at UH Manoa are strengthened by cooperative relationships with the following units:

  • Other Departments in CTAHR especially Tropical Plants and Soil Sciences and Natural Resources and Environmental Management; 
  • Ecology, Evolution, and Conservation Biology Program;
  • Bernice Pauahi Bishop Museum;
  • Harold L. Lyons Arboretum;
  • Agricultural Research Service of the United States Department of Agriculture (USDA-ARS);
  • Animal and Plant Health Inspection Service of the United States Department of Agriculture (USDA-APHIS);
  • Forest Service of the United States Department of Agriculture (USDA-FS);
  • United States Department of Defense;
  • United States Geological Survey;
  • Hawaii State Departments of Agriculture, Land and Natural Resources, and Health.

We also have an cooperative relationship with the Environment and Plant Protection Institute in the Chinese Academy of Tropical Agricultural Sciences Hainan, China. 

Department of Plant and Environmental Protection Sciences

3050 Maile Way

Gilmore Hall 310

Honolulu, HI 96822

Phone: (808) 956-7076

Fax: (808) 956-2428


Department Chair

Dr. Koon-Hui Wang

Graduate Chairs

Dr. Mark Wright,

Dr. Brent Sipes,
Tropical Plant Pathology

Undergraduate Advising

Michael Melzer

Miaoying Tian

Koon-Hui Wang



Undergraduate Curriculum


Mohammad Arif

Gordon Bennett

Brent Sipes






If you require information in an alternative format, please contact us at:

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