IPM Pest Biology - Plant Diseases
Pest Biology – Plant Diseases Module – 6 hours
Cost for Session 5
$150 - registration fee
Course developer: Dr. Anton Baudoin, associate professor, Department of Plant Pathology, Physiology and Weed Science, Virginia Tech, Blacksburg, Virginia; Virginia Sykes, graduate assistant, Department of Plant Pathology, Physiology and Weed Science, Virginia Tech, Blacksburg, Virginia
Course instructor: Dr. Anton Baudoin, associate professor, Department of Plant Pathology, Physiology and Weed Science, Virginia Tech, Blacksburg, Virginia
Session 5 Start Date: October 2012 dates to be determined.
Session 5 End Date: November 2012 dates to be determined.
A student who successfully completes the Pest Biology-Plant Diseases module will receive 0.6 CEUs and a Certificate of Completion. This information will be added to your personal portfolio so you will always know what you have completed.
This module provides basic biological information about bacteria, viruses, nematodes, and fungi; how these organisms can harm plants; and how to mitigate damage using various integrated pest management tactics. It is strongly recommended for students who do not have a background in plant pathology and who work with or are responsible for plants of all types including landscapes, turf, vegetables, trees, shrubs, and green foliage plants. A number of IPM3 courses expect students to have a firm grasp of the biology of plant diseases.
The module uses multiple media learning techniques that include text, videos, still photo, and case studies. Quizzes are provided at the conclusion of each lesson – an overall grade of 80 percent is required for a student to pass the Plant Pathology Module. Since our goal is to increase your knowledge and understanding, there are no limitations to the number of times a student may retake an assessment.
If you are interested in completing this course, please contact us at ipm3@umn.edu with your contact information and approximate date range that you would like to complete the course.
Course Outline
1. General concepts
1.1. The nature of plant disease – what is included?
1.2. Damage and losses
2. Diagnosis
2.1. Disease triangle
2.2. The process of diagnosis
3. Symptomatology
3.1. Leaf spots
3.2. Blights
3.3. Cankers
3.4. Dieback
3.5. Damping-off
3.6. Soft rots and dry rots
3.7. Decline
3.8. Galls
3.9. Wilts
3.10. Yellowing
3.11. Stunting
3.12. Scorch
3.13. Leaf mottle or mosaic
3.14. Abnormal or twisted growth
4. General aspects of disease development
4.1. Stages of the disease cycle
4.1.1. Inoculation
4.1.2. Penetration
4.1.3. Infection
4.1.4. Colonization
4.1.5. Growth and reproduction
4.1.6. Dissemination
4.1.7. Survival mechanisms
4.2. How pathogens attack plants
4.2.1. Mechanical
4.2.2. Chemical
4.2.3. Toxins
4.2.4. Growth Regulators
5. Abiotic Causes
5.1. Environment
5.1.1. Temperature
5.1.2. Wind
5.1.3. Moisture
5.2. Nutrition
5.2.1. Soil pH
5.2.2. Soil fertility
5.3. Chemical
5.3.1. Herbicides
5.4. Mechanical
5.4.1. Soil compaction
5.4.2. Hail
6. Biotic Causes
6.1. Fungi and Oomycetes – Nature, Major groups
6.2. Types of diseases
6.2.1. Damping off
6.2.2. Root rot
6.2.3.
6.2.4. Oomycetes
6.2.4.1. Phytopthora ramorum
6.2.5. Ascoymycetes
6.2.5.1. Sclerotinia white mold
6.2.6. Deuteromycetes (Imperfect fungi)
6.2.6.1. Fusarium root rots
6.2.7. Basidiomycetes
6.2.7.1. Wheat rusts
6.3. Bacteria – Nature
6.3.1. Gram positive
6.3.1.1. Bacterial ring rot of potato
6.3.2. Gram negative
6.3.2.1. Fireblight
6.3.2.2. Pierce’s Diseases of Grape
6.4. Phytoplasmas – Nature
6.4.1. Ash Yellows
6.4.2. Aster Yellows
6.5. Viruses – Nature
6.5.1. Transmission
6.5.1.1. Tomato spotted wilt virus
6.6. Nematodes – Nature
6.6.1. Root-knot nematodes
6.7. Parasitic plants
6.7.1. Dodder
7. Plant Disease Epidemiology
7.1. Inoculum sources
7.2. Inoculum dispersal
7.3. Environment
7.4. Quantification and interpretation of epidemics
7.5. Forecasting systems
8. Plant Disease Management
8.1. Pathogen exclusion or eradication
8.2. Host resistance
8.3. Biological control
8.4. Chemical control
8.4.1. Modes of action
8.4.2. Contact vs. systemic
8.4.2.1. Protectants
8.4.2.2. Eradicants
8.4.3. Fungicide resistance
