Weed Science
University:
Texas Tech University 
Course Number:
PSS 5429-
Credit Hours:
4 credit hours - $622 per credit
Start/End Dates:
August 25, 2025 - December 10, 2025
Overview
Course Description
Weeds and weed control methods in agronomic and horticultural crops and turf grass with an emphasis on chemical weed control will be studied. History of weed control, weed characteristics, weed competition, and methods of weed control including mechanical, cultural, biological, and chemical will also be learned. Herbicides will be discussed by family with specific regard to their chemical structure, efficacy, mode and mechanism of action, crop selectivity, soil activity and persistence, and cost. Weed seed and plant identification, sprayer equipment, sprayer calibration, herbicide formulations, herbicide labels, crop/weed response to herbicides and injury symptomology, and Worker Protection Standards will also be presented.
Contacts
Instructor
Peter Dotray
Office: 806-742-1634
peter.dotray@ttu.edu
Campus Coordinator
For course access questions, contact the teaching university’s campus coordinator. For enrollment questions, contact your home university campus coordinator.
DirectoryDisability Support Services
To request accommodations for this course, contact the disability support office at your home university. You must register each semester and for each course. Read more about the IDEA process for requesting accommodations.
Learn MoreTextbooks
Weed Science: Principles and Applications
Wood Powell Anderson
Edition: Third
ISBN: 1577665252
Publisher: Waveland Press
Course Access
Approximately two weeks before the first day of class at Texas Tech University, the TTU campus coordinator, Ashlee Murden, will email instructions to each student enrolled in courses taught by Texas Tech. This e-mail will contain information regarding the setup of their eRaider access through the campus IT Help Central department. If assistance is needed regarding setup of their eRaider access, IT Help Central can be contacted at 806-742-4357 (HELP) or toll-free at 877-484-3573 or ithelpcentral@ttu.edu. Students will need to identify themselves as an IDEA student to IT Help personnel for proper guidance. The e-mail will also include information about accessing the Texas Tech Canvas system for their courses. Courses will be available on the first day of class, but may not be available prior to that date.
Exam Proctor
This course does not require an exam proctor.
Synchronous Components
This course does not include synchronous components.
Comments
This is a challenging and rewarding 4-credit course that contains a lecture and lab component.
