This course will provide students with a detailed overview of herbicide chemistry and application in relation to their behavior in crops and weeds. Topics will include biological and chemical properties of most commonly used herbicides; adjuvants for herbicides; herbicide uptake, translocation, and biochemical action in crops and weeds.
Athena Title
Physiology of Herbicide Action
Equivalent Courses
Not open to students with credit in CRSS 8300E
Prerequisite
[(CRSS 4340/6340 or CRSS 4340E/6340E) and CRSS 4340L/6340L] or permission of department
Semester Course Offered
Offered spring
Grading System
A - F (Traditional)
Student learning Outcomes
Students will be able to analyze physiochemical properties of any given herbicide and predict its behavior in crops, weeds, and the environment.
Students will be able to analyze raw data on herbicide behavior in plants and predict use rates and selectivity patterns.
Students will analyze data from biochemical and physiological responses of plants to herbicides to determine mechanisms of resistance.
Topical Outline
1. Herbicide Background
1.a. Classification – chemistry, use, MOA, application
1.b. Discovery – screening, high throughput, models
1.c. QSAR – overview, examples
2. Physiology
2.a. How herbicides kill plants at the molecular level
2.b. Biochemistry of herbicide action
2.c. Genetics of herbicides – upregulated genes, downregulated genes
2.d. Selectivity – P450, GST
2.e. Uptake
2.f. Herbicide Resistant Crops & Weeds
3. Application
3.a. Adjuvants
3.b. Drift, nozzles, and uptake
4. Herbicide Mechanism of Action in Crops and Weeds
5. Herbicide Resistance in Crops and Weeds
