PLNT 0770

WEED MANAGEMENT


GARY MARTENS

Room 109

474-6097 office

WEED MANAGEMENT

1. Introduction

1.1 Course description and marking scheme

1.2 General considerations

1.3 Definitions of a weed

1.4 Noxious characteristics of weeds

1.5 Ethno Botany: Value of weeds

 

2. Biology of Weeds

2.1 Life cycles and growth habits

2.2 Reproduction and dissemination of weeds

2.3 Germination and dormancy

2.4 Characteristics of an "ideal" weed

 

3. Legislation Re: Weeds

3.1 Seeds Act

http://www.inspection.gc.ca/english/reg/rege.shtml

http://www.agr.gc.ca/index_e.phtml

3.2 Weed seed order

3.3 Pest Management Regulatory Agency

http://www.pmra-arla.gc.ca/english/index-e.html

 

4. Weed-Crop Competition

4.1 Competition for water, nutrients, light

4.2 Yield reduction factors

4.3 Economic considerations

4.4 Electronic Guides to Crop Protection

http://www.gov.mb.ca/agriculture/crops/index.html

http://www.agric.gov.ab.ca/app21/ldcalc

http://www.agriculture.gov.sk.ca/Guide_to_Crop_Protection

 

5. Methods of Weed Control

5.1 Integrated

http://ipmworld.umn.edu/textbook.htm

5.2 Cultural

5.3 Mechanical

5.4 Biological

5.5 Chemical

http://www.libertyparkusafd.org/lp/NatureFirst%20USA/drug%20industry%5CHerbicide%20Company%20-%20Genealogy.pdf

 

6. Classification of Herbicides

6.1 By Chemical family

6.2 By Mode of Action

http://www.plantprotection.org/hrac/MOA.html

6.3 By Crop

6.4 By Weeds

6.5 Other classifications

 

7. Herbicide Application

Pesticide Applicator Licence: 1-800-862-6307 x7116 Trent Nowosad

7.1 Formulations and carriers

7.2 Adjuvants

7.3 Tank mixing

7.4 Incorporation of soil-applied herbicides

7.5 Herbicide toxicity

http://www.uoguelph.ca/cntc/

7.6 Safety precautions: MSDS

http://www.msds.com/

 

8. Herbicide/Soil/Plant Interactions

8.1 Factors affecting herbicide performance

8.2 Mode of action of herbicides

8.3 Movement of herbicides in the soil

8.4 Residues

8.5 Fate of herbicides in the environment

http://umbbd.msi.umn.edu/

 

9. Herbicide Resistance

9.1 Occurrence in western Canada

http://www.weedscience.org

9.2 Mechanism of resistance

9.3 Predicting resistance

9.4 Managing/Avoiding resistance

9.5 Herbicide resistant crops

 

10.. Current Topics

10.1 “Cosmetic use” of pesticides in cities

10.2 New developments

10.3 Trends in herbicide research and formulation

10.4 Effect of Gov. policy/legislation on the use and development of herbicides

 

MARKING SCHEME

Lecture   Lab  
Quizzes 15% Quizzes and assignments (in class) 20%
Assignments 10% Final Lab Exam 20%
Final Exam 35%    
Totals 60%   40%

 

Lab Text:

Weeds of Canada and the Northern United States, Royer and Dickinson

Weed Seedling Guide

Diploma Lab Manual

http://www.umanitoba.ca/afs/plant_science/weeds/weeds.html

Guide to Crop Protection

http://www.gov.mb.ca/agriculture/crops/index.html

Reference Books:

Ross and Lembi. Applied Weed Science. 1985
Wood, Powell, Anderson. Weed Science Principles. 1996
R.J. Aldrich. Weed Crop Ecology. 1984
R.J. Aldrich and R.J. Kremer. Principles of Weed Management 1997
http://www.umanitoba.ca/academic_support/libraries/
Wood, Powell, Anderson, Weed Science: Principles and Applications, 1996
Robert Zimdahl, Fundamentals of Weed Science, 1999
T J Monaco, S C Weller, F M Ashton, Weed Science:Principles and Practices, 2002
L Hall, H Beckie, T Wolf, How Herbicides Work: Biology to Application, 1999
L Hall, How Herbicides Work: Mechanisms of Action, 1996
Liebman, Mohler, Staver, Ecological Management of Agricultural Weeds, 2001

Labs

Weed identification

  • Introduction to herbicides
  • Familiarization with the Guide to Crop Protection
  • Herbicide injury symptoms
  • Case study problem solving

 

Evaluation procedures and other relevant information

A number of quizzes and problems (a total of approximately 25 marks) will be marked and returned to you before the voluntary withdrawal date of March 11, 2010.

Written papers worth 10 marks will be assigned during the term. In the first paper, due on January 8 please send me an email at gary_martens@umanitoba.ca introducing yourself to me. Send me a link to your farm on Google Earth. Tell me your area of interest and what you hope to get out of this course. You will be adked to write a 4-5 page referenced paper on a topic of your interest in weeds. "Referenced" paper means that you include a list of all your sources, written, oral and internet sources at the end of your paper. A citation (Martens, 2009) must also be included in the text.

Lab quizzes will be given at the start of each lab, beginning in Lab 2. These quizzes are open book and may be done in consultation with other class members. Most lab problems can be done in class and handed in at the end of the lab period.

The final lab exam will be a closed book, individually done identification and short answer exam. The final lab exam will be done during your last lab period the week of March 16-18.

Late assignments will be deducted 10% for each day late unless previous arrangements are made with the instructor. Missing lab quizzes, problems or assignments will receive a value of zero. No make up quizzes will be given.

Refer to the University of Manitoba statements on academic dishonesty including plagiarism and cheating and examination impersonation found on line at
http://umanitoba.ca/student/student_guide.html