Dr. Tom Hsiang, Department of Environmental Biology, University of Guelph

Bovey 3227, phone (519) 824-4120, ext. 52753. (email: thsiang at uoguelph.ca)

Evaluation of Students

    Lab quizzes & Oral presentations
    Term paper
    Exams (midterm & final)

Office Hours

Generally, I will have regular office hours (the hour after lecture). Students should feel free to come at those times without an appointment. For other times, phone or make arrangements for a time that is mutually convenient. I particularly encourage you to use email to contact me (thsiang at uoguelph.ca).

Exam Conflicts, Illness etc.

Please advise me of examination conflicts as soon as possible. If you have an illness or other problem, please see your program counsellor and ask them to issue a notice to instructors.

A. The Calendar Description

ENVB*3160 Turfgrass Diseases F(2-2) [0.50]. Biology and management of turfgrass diseases. The ecology of turfgrass diseases and cultural methods of management will be emphasized, in addition to field recognition and microscopic diagnosis of diseases. Advances in biological and chemical control measures and their impact on turfgrass ecosystems and surrounding environments will also be discussed. This course will interest students who plan a career in turfgrass management, but will also be useful to those interested in maintaining healthy home lawns.The impact of beneficial and pathogenic micro-organisms on forest health, and the biology and management of tree diseases in natural and urban ecosystems is covered in this course. Emphasis will be placed on ecological processes, host-pathogen interactions, mutualistic associations, wood decay, and human impacts on tree health.

Prerequisites: HORT*2450 (Introduction to Turfgrass Science) 

Required Text: Sears, M., T. Hsiang and P. Charbonneau. 1996. Diseases and Insects of Turfgrass in Ontario: a Handbook for Professional Turf Managers. Ontario Ministry of Agriculture, Food and Rural Affairs Publication 162. Toronto, Ontario.

Recommended Text: Smiley, R.W., P.H. Dernoeden and B.B. Clarke. 2005. Compendium of Turfgrass Diseases, Third Edition. APS Press, St. Paul, MN.

B. Objectives of the Course

This course focuses on turf diseases, their biology and management. Emphasis is placed on ecological processes, biological and cultural controls, host-pathogen interactions, and impact of disease control activities on the turf and surrounding environments. Identification, disease cycles and the management of major turf diseases of nothern temperature climates are presented.  While there is an emphasis on golf course turf diseases, lawn care and sports turf diseases are also discussed. These specific learning objectives are addressed:
1) to describe major groups of cool season (northern temperate zone) turf diseases;
2) to properly identify causal agents in turf disease samples using a diagnostic manual and a microscope;
3) to recognize the effect of environmental conditions on turf diseases;
4) to recognize the impact of disease management practices on the environment;
5) to differentiate between biotic and abiotic disease symptoms; and
6) to use cultural, biological and chemical techniques to minimize severity of turfgrass diseases.

C. Academic Honesty and Integrity

It is the student's responsibility to read and to comply with the policies regarding Academic Misconduct at the University of Guelph (http://www.uoguelph.ca/undergrad_calendar/c08/c08-amisconduct.shtml). Of particular relevance to this course is honesty during exams, honesty in written assignments, and honesty with respect to medical excuses. In fairness to you and to other students in the class, academic misconduct will not be tolerated and will be dealt with firmly.

Examples of academic misconduct in written assignments include: 1) lack of quotation marks: plagiarism has occurred if the author does not place quotation marks around word-for-word copying of print or electronic format source material even though the source is correctly cited; and 2) degree of fidelity to sources - plagiarism has occurred if the author's writing is clearly recognizable as essentially derived from cited or uncited print or electronic format sources, even though the author has altered the original source material by inverting word or sentence order, or substituting synonyms.

D. Assignments and Tests

E. Lecture and Lab Schedule