Plant Pathology - Fall 1996
Professor: Dr. Bob R. Pohlad

Office Hours: MTWTh: 9-11; M: 2-3
Tutoring Center: TBA
Text: Plant Pathology, George N. Agrios, 3rd ed., 1988; Academic Press.
Lab Manual: General Plant Pathology Lab Manual, Bob R. Pohlad

Lecture Meeting Times: Tuesday and Thursday 11-12:30 Botany Lab, Garber Hall, 208. Be on time. Late arrival in class may be considered absence.

Laboratory Meeting Times: 3-6 Wednesday. Botany Lab, Garber Hall.

Class Attendance: All students are required to attend all of the lectures and labs. If an absence is to be excused, it must be confirmed with the professor three days prior to, or within three days following, the absence.

Labs: Labs are very informal; however, you are expected to do your own work. You are expected to complete the assigned work in the assigned lab. Excused labs will be made up by assignment, following appointment with professor. All labs are due by 5:00 p.m. at end of the Wednesdays lab. Write-ups on experimental labs are due the lab period following that in which it was completed. THERE WILL BE NO SMOKING IN THE LECTURE OR LABORATORY AT ANY TIME.

Tests and Quizzes:
There may be a short quiz on Thursdays, as necessary. Major tests will be given at the end of each unit of work. Tests or quizzes missed on excused absences will be excused. Tests or quizzes missed on unexcused cuts will be averaged as zeros.

Project: Each student will be required to make a disease collection of ten plant specimens. Each collection will include a page of information, including a drawing of the plant, causal organism, and include reference where found. You are also required to isolate at least one pathogen to turn in with your collection. Collections are due December 11th. BEWARE however, winter comes early, and specimens are hard to distinguish from death by natural causes. Suggestion: make collections now and preserve them; then work on identification and report writing. If you have questions on the validity of the disease, consult the instructor. Waiting too long is not a good excuse. Lack of collection results in a zero grade averaged into final points.

TENTATIVE GRADE DISTRIBUTION (subject to change during semester)
3 tests (100 pts. ea.) 300 pts.
5 quizzes (20 pts. ea.) 100 pts.
1 plant disease collection (10 plants-10 pts. ea.) 100 pts.
1 final exam (lecture) 100 pts.
1 final exam (lab) 100 pts.
10 labs (weekly exercises, drawing, etc.-10 pts. ea.) 100 pts.
5 lab write-ups (40 pts. ea.) 200 pts.
1. Koch's Postulates (Ex. #5)
2. Maceration (Ex. #6)
3. Fungicides (Ex. #9)
4. Bacteria Dispersal (Ex. #11)
5. Root Knot Nematodes (Ex. #13) ____________
Total 1000 pts.
Grading Scale:0-59 = F, 60-69 = D, 70-79 = C, 80-89 = B, 90-100 =A

Questions and discussion are welcome and encouraged. Feel free to stop the professor at any time to ask a question or to offer a pertinent point of interest. Each student is expected to have at least two personal conferences with the professor during the semester: one prior to mid-term and the other prior to finals. These meetings are not limited to two, but two is the minimum.

Cheating: Cheating and plagiarism will not be tolerated. Anyone suspected of cheating will be turned over to the faculty-student honor council with the recommendation of expulsion with a grade of F.

Tentative Syllabus
Dr. Bob R. Pohlad
11-12:30 TTH - Garber Hall (208)

Week of: Subject Text Pages

Aug. 29-30 Introduction to Plant Pathology 3-39

Sept. 2-6 Introduction, Parasitism, & Dis. Dev. 40-62

9-13 How Pathogens Attack Plants & Effects
on Physiol. Function 63-86

16-20 Plant Defense and Genetics 97-146

23-27 Env. Effects and Epidemiology 147-179

30-4 Control of Disease 180-236

Oct. 7-11 Plant Diseases Caused by Fungi-Intro. 265-282

14-16 Diseases by Lower Fungi 283-324

21-25 Diseases by Higher Fungi 325-509

28-1 Diseases by Higher Fungi 325-509

Nov. 4-8 Diseases by Prokaryotes 510-609

11-15 Diseases by Higher Plants and Viruses 610-702

18-22 Diseases by Nematodes and Protozoa 703-746

Dec. 2-6 Diseases by Env. Factors 237-264

9-11 Biotechnology in Plant Pathology 757-774

14 *** FINAL EXAM *** Sat. 10:30-12:30 a.m.

Tentative Syllabus
Dr. Bob R. Pohlad
3-6 p.m., Wednesdays, Botany Lab, Garber Hall (208)

Lab # Date Subject
1 Sept. 4 Field Identification of Plant Diseases
Slides on symptoms and signs
2 11 Diagnosis of Plant Disease (Ex. #1)
Chemicals used for Disease Control (Ex. #2) 3 18 Use of the Compound Microscope (Ex. #3)
Review of Plant Structure (Ex. #3)
Techniques (Ex. #3)
4 25 Diseases caused by Myxomycetes (Ex. #4)
Start Koch's Postulates (Ex. #5)
5 Oct. 2 Maceration of Plant Tissue by Enz. (Ex. #6)
Continue Koch's Postulates (Ex. #5)
Inoculate tomatoes with Nematodes (Ex. #13)
6 9 Diseases caused by Phycomycetes (Ex. #7)
Continue Koch's Postulates (Ex. #5)
7 16 Diseases caused by Ascomycetes (Ex. #8)
Finish Koch's Postulates (Ex. #5)
8 23 Work on Disease Collections

9 30 Diseases caused by Fungi Imperfecti (Ex. #9)

10 Nov. 6 Diseases caused by Basidiomycetes (Ex. #10)

11 13 Diseases caused by Bacteria (Ex. #11)

12 20 Diseases caused by Viruses (Ex. #12)

13 Dec. 4 Diseases caused by Nematodes (Ex. #13)

14 11 Lab Final - Collections Due

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