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William H. Darr School of Agriculture

Pamela Borden Trewatha, Ph.D.

Professor of Horticulture

Room 226 Karls Hall

phone:  (417) 836-5097

e-mail:  pbtrewatha@missouristate.edu

 

New weeds, information being added to Midwest Weed ID link above during spring 2015-- follow link for more information.

 

Spring 2015 Office Hours:

  • Mondays and Wednesdays, 1:00 - 3:00 pm
  • Fridays, 12:45 - 1:45 pm
  • Plus any other time by appointment, or if I am in my office. 

 Spring 2015 Classes :

  • AGR 300 - Food and Agricultural Chemistry - MWF 11:15 am - 12:05 pm
  • AGP 453 - Crop Physiology - taught online
  • AGP 753 - Plant Stress Physiology - taught online
  • AGP 353 - Turfgrass Science - taught online

Courses Taught: (see links to courses at above left)

  • AGP 585 - Weed Science - Summer 2015 (formerly AGP 485) (offered as an online course through Blackboard)
  • AGP 586 - Weed Identification - last taught Fall 2014
  • AGP 333 - Landscape Design - last taught Spring 2008
  • AGP 353 - Turfgrass Management - Spring 2015 (offered as an on-line course through Blackboard)
  • AGP 363 - Landscape Plants - last taught Fall 2014
  • AGP 403 - Nursery Management -  last taught Fall 2013 (offered as an on-line course through Blackboard)
  • AGP 433 - Advanced Landscape Design -  last taught Fall 2012
  • AGP 453 - Crop Physiology/AGP 753 - Plant Stress Physiology - Summer  2015 (offered as an on-line course through Blackboard)
  • AGR 300 - Food & Agricultural Chemistry - Spring 2015 (offered as an on-line course through Blackboard)
  • AGR 499 - Internship in Horticulture─ Summer 2015

Educational Background:

  • B.S. in Plant Protection, 1978, Purdue University, Department of Botany & Plant Pathology
  • M.S. in Horticulture, 1982, Kansas State University, Department of Horticulture
    • Emphasis on woody ornamental production; research on use of growth retardants on container-grown blue holly
  • Ph.D. in Horticulture, 1987, Kansas State University, Department of Horticulture
    • Emphasis on turfgrass physiology; research on enhancing spread and reducing water use of zoysiagrass cultivars by use of growth regulators       

  

Research Interests:

  • I'm currently working on writing a midwest weed identification manual and am continually researching and photographing weeds throughout the midwest
  • Surveys of new weed species spread in Missouri and throughout midwest
  • Native plant production, restoration and adaptation for use in ornamental horticulture
    • production and evaluation of prairie/dryland wildflowers for sustainable landscapes
    • evaluation of western native oak species for use in Missouri
    • evaluation of spruce species for use in Missouri
  • Past research has included evaluation of native warm-season grasses for allelopathy, effect of herbicides on native warm-season grass mycorrhizae, turfgrass cultivar evaluation trials