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Effective: Summer 2014

Advisory: Advisory: Completion of or concurrent enrollment in HORT 15 strongly recommended.
Grade Type: Letter Grade, the student may select Pass/No Pass
Not Repeatable.
FHGE: Non-GE Transferable: CSU
2 hours lecture, 3 hours laboratory. (60 hours total per quarter)

Student Learning Outcomes -
  • Identify various plant diseases, insects, and weeds.
  • Demonstrate skills in developing integrated pest management plans.
Description -
Problems of and control solutions for diseases, insects, and weeds in landscapes and gardens. Ecologically based Integrated Pest Management (IPM) practices for handling plant pathogens, insect infestations, and unwanted vegetation. Emphasis on identification, life cycles, and symptoms of diseases, insects, and weeds.

Course Objectives -
The student will be able to:
  1. identify various plant pathogens
  2. through practical applications, demonstrate knowledge of insect morphology and biology
  3. through practical applications, demonstrate knowledge of plant morphology and biology
  4. through practical applications, demonstrate knowledge of general ecology of unwanted plants as well as their control.
  5. evaluate and choose the best methods to prevent and/or control plant diseases, insect infestations, and weed growth, including the selection of chemical and biological control agents.
  6. discuss local, state, and federal laws and regulations regarding pest management and the use of pesticides, insecticides, herbicides, and biological control agents utilized in IPM.
Special Facilities and/or Equipment -
Horticultural laboratory, sustainable garden, and related horticultural facilities and equipment. Students provide equipment and supplies to collect and observe diseases, insects, and weeds including work boots, leather gloves and clothing for fieldwork.

Course Content (Body of knowledge) -
  1. Plant pathogen biology and identification
    1. Pathogen structures (fungi, bacteria, viruses, etc.) (Lec)
    2. Pathogen physiology - the infestation process (Lec)
    3. Pathogen identification: (Lab)
      1. Sample collection and preparation (Lab)
      2. Diagnosis (Lab)
  2. Insect biology
    1. Functional role of insects (Lec)
    2. Insect morphology and physiology (Lec)
    3. The insect pest concept (Lec)
    4. Beneficial organisms (parasitic and predatory insects and nematodes) (Lec)
    5. Insect identification (sample collection and preparation) (Lab)
    6. Insect habitats (soil, plant, etc.) (Lec)
  3. Plant morphology and biology (Lec)
    1. Plant structure (Lec)
    2. Plant physiology (Lec)
    3. Physiology of plant reproduction (Lec)
    4. Plant identification (sample collection and preparation) (Lab)
  4. Ecology and control of plant pathogens, insects, and invasive plants
    1. How a microbe becomes a pathogen dissemination of plant pathogens (Lec)
    2. How insects become pest problems for plants (Lec)
    3. How a plant becomes a weed (Lec)
    4. Plant health relative to disease and insect infestations (Lec)
    5. Plant competition and weeds (strategies for weed survival) (Lec)
    6. Environmental factors that pre-dispose plants to disease, insect, and weed infestations (Lec)
    7. Insect monitoring techniques (Lab)
    8. Genetics and insect management (Lec)
    9. Habitat modification for weed management (Lab)
      1. Vegetation management techniques (Lab)
      2. Reducing propagule load (Lab)
    10. Quality control of beneficial insects and nematodes (Lec)
    11. Chemical, biological, and physical control of pathogens, insects, and weeds (Lec)
    12. Mode of action of pesticides, insecticides, and herbicides (Lec)
    13. Cultural control of plant pathogens, insects, and weeds (Lec)
  5. Integrated pest management (IPM)
    1. Guidelines to develop Integrated Pest Management Plans for diseases, insects, and weeds (Lab)
    2. Integrated pest management in practice (Lab)
  6. Regulatory aspects of plant disease management (local, state, and federal)
    1. Pesticide, insecticide, and herbicide registration (Lec)
    2. Pesticide, insecticide, herbicide, and biological control product labeling (interpretation and use) (Lab)
    3. The practice of integrated pest management and licensing issues (Lab)
    4. Risk management and IPM (Lec)
    5. Worldwide practices of IPM (Lec)
Methods of Evaluation -
May include but not limited to:
  1. Term Project
  2. Midterm Exam
  3. Lab reports
  4. Final examination
Representative Text(s) -
Radcliffe, Edward B. Integrated Pest Management, Concepts, Tactics, Strategies, and Case Studies Cambridge University Press, 2012.
Dreistadt, Steve. Pests of Landscape Trees and Shrubs An Integrated Pest Management Guide - 2 Ed. Berkeley, CA: University of California, 2004.

Disciplines -
Ornamental Horticulture
Method of Instruction -
  1. Lecture presentations on IPM.
  2. Slide or Web presentations which assist in the identification of pests and diseases.
  3. Group discussions and examinations of common weeds, diseases, and pests.
  4. Classroom discussions and demonstrations of pest control mechanisms.
Lab Content -
  1. Lab instruction using microscopes. Microscopic examination of:
    1. Plant diseases.
    2. Plant pests.
    3. Weeds having a deleterious affect on the environment or other plants.
  2. Field work in the collection of representative organisms. Labs focusing on:
    1. Diseases
    2. Plant Pests
    3. Weeds
  3. Lab demonstrations and practice of pest control mechanisms.
    1. Practical application of conventional, organic, and sustainable pest control systems.
Types and/or Examples of Required Reading, Writing and Outside of Class Assignments -
  1. Reading assignments will include reading approximately 30-50 pages per week from assigned text. Supplemental reading will be provided in hand-out form or through reference to on-line resources.
  2. Lectures will address reading topics and experiences of instructor. Classroom discussion and demonstrations in support of lecture topics will be provided.
  3. Guest speakers from industry will provide supplemental lecture and demonstration.
  4. Writing assignments include:
    1. topical white papers