Agronomy 317
Principles of Weed Science

Bob Hartzler
Iowa State University

Weed Collection

 

Lecture outlines and required readings

Weed biology and ecology

Introduction and Weedy Characteristics
An Ecological Understanding of Weeds (Mark Schonbeck, eXtension)
Sexual reproduction
Vegetative reproduction
Weed seeds and seedbanks
Weed seedbank dynamics (Montana State University Extension)
Competition
Invasive plants

First exam

Non-chemical weed control

Weed management tactics
Preventative
Tillage
Weed management - Univ. Minnesota
Cropping systems
- Keep the weeds guessing with crop rotations (Mark Schonbeck, eXtension)
- How cover crops suppress weeds (Mark Schonbeck, eXtension)
Soil management
Biological control

Chemical weed control

Herbicide groups
Soil-applied herbicides - outline
Soil applied herbicides - paper
Foliar-applied herbicides - outline
Foliar-applied herbicides - paper
Herbicide translocation
Herbicide selectivity

Herbicide families
Growth regulators
Photosynthesis inhibitors
Pigment inhibitors
Acetamide herbicides
Dinitroaniline herbicides
ALS inhibitors
ACC-ase inhibitors
Glufosinate
Glyphosate

Weed shifts/resistance

Study guide for final

Supplemental reading
Soil applied herbicides
Foliar applied herbicides
University of Nebraska Plant and Soil Sciences eLibrary - Weed Science
Foliar absorption and phloem translocation
Metabolism of herbicides or xenobiotics in plants
Herbicide classification

 

 

OLD EXAMS

Exam 1: 2006, 2007, 2008 , 2009, 2011
Exam 2: 2005, 2006 , 2007 , 2008, 2009 , 2011
Exam 3: 2005 , 2006 , 2007 , 2008, 2011
Final: 2005 , 2006, 2007, 2008 , 2010 , 2011