AESRG Teaching Banner

Teaching


Advanced Principles of Agroecosystem Management

Scope Grading Format Schedule Ento 623

Entomology 623, 3 credits

 

Scope

Course Goals

Promote a greater interest and understanding of the principles and practices concerning the management of agricultural systems; with primary regard to the management of herbivorous and entomophagous arthropods. Increase the ability of the students to articulate these concepts.

Description

The course will provide up-to-date coverage of principles of agroecosystem management, and will be oriented to provide students from a range of agricultural disciplines an understanding of quantitative techniques used in agricultural management. Attention will focus on the study and development of environmentally compatible and economically sound management systems. The material presented in this course will be of value to graduate students from a range of agricultural disciplines including agronomy, entomology, horticulture, and plant pathology.

Schedule

The course will be offered every Fall Semester, and will have three lecture/discussion periods per week.

Prerequisite

Completion of either Ento 401, 402, or 424, or consent of instructor.

Back LadyBug.gif (1027 bytes)

 

Grading

Grading

First exam 15%, Second exam 25%, Presentation 5%, Discussion Involvement 5%, Paper 20%, Final 30%. The grade received in the course will be determined using the following criteria; A (100-87), B (<87-77), C (<77-67), D (<67-57), F (< 57).

Exams

The first exam will cover the lecture and discussion material presented during the first third of the semester. The second exam will similarly cover the material presented during the second third of the semester. The final exam will be comprehensive but ca. 40% will be based on the material presented during the last third of the semester. Exams (except for finals) will be comprised of a short answer-problem solving section to be complete in class, and a take home open book section. The take home section will be comprised of 1/2 to 2 page essays and a few problem solving questions. The take home section must be double-spaced and typed (except for equations and graphs which may be hand written), and be turned in by the following lecture. Five percent will be deducted from an exam grade for each day that the student is late in turning in the take home exam. An additional 10 percent will be deducted for hand written take home exams.

Back LadyBug.gif (1027 bytes)

 

Format

Presentation & Discussion Involvement

During each lecture period, student will be asked questions relating to the information presented during the lecture, or relating to assigned reading. In addition, approximately five class meetings will involve student participation on selected problems. Each problem set will be assigned one week in advance of their due date. Problem sets are due at the start of the period. Each student will be requested to explain to the class how they answered one or more of the questions

Paper

Each student will write one 15-30 page paper. Each student must turn in a typed outline of their paper by the fourth week of class. For the appropriate format, students are referred to the Information for Contributors page of either Environmental Entomology or Journal of Economic Entomology (JEE), and any recently JEE publication. The paper will be graded on the thoroughness of the review (60%), clarity of writing (20%), and adherence to the indicated format (20%). If you have not previously written a peer-reviewed journal article, please come and see the instructor who will provide you with details on how to obtain information on journal formats. All papers are due two weeks before the end of the semester. Papers turned in at least 7 days before the due date will be reviewed by the instructor, returned to the student, and the student allowed to improve the paper if the revised version is returned by the due date. Five percent will be deduced from a papers grade for each day the paper is turned in late.

Plagiarism

If a student has a question as to how best to cite published or previously written material, please discuss the matter with the instructor. Submission of someone else's term paper or answer to an essay question as part of a take home exam or take home problem set constitutes plagiarism. Plagiarism can result in an automatic failing grade for the semester. Additional penalties may be imposed by the College or University.

Reading Assignments

Selected readings. References for about 2-3 papers are provided each week. In addition, the following books are suggested as general references.

Dent D. 1995. Integrated Pest Management, Chapman and Hall Ltd., New York, New York, USA, 356p.
Frisbie, R. E., K. M. El-Zik & L. T. Wilson (Eds.). 1989. Integrated Pest Management Systems & Cotton Production, 437 pp.
Gutierrez, A. P. 1996. Applied Population Ecology. John Wiley & Sons, Inc., New York, N. Y., USA, 300 pp.

Horn, D. J. 1988. Ecological approach to pest management. Guilford Press, New York, N. Y., USA, 285 pp.

Hoy, M. A. & D. C. Herzog. 1985. Biological Control in Agricultural IPM Systems. Academic Press, Inc., New York, N. Y., USA, 589 pp.
Metcalf, R. L. & W. H. Luckmann. 1996. Introduction to Insect Pest Management (3rd Edition). John Wiley & Sons, New York, N. Y., USA.
Pedigo, L. P. 1989. Entomology & Pest Management, MacMillian Publishing Co., New York, N.Y., USA, 646 pp.
Pedigo, L. P. & G. D. Buntin (Eds.). 1994. Handbook of Sampling Methods for Arthropods in Agriculture, CRC Press, Boca Raton, FL, USA, 714 pp.

Back LadyBug.gif (1027 bytes)

 

Spring Schedule

No Date Topic Speaker
1 Discussion of Course Format LTW
2 Overview of Ecology and Agroecosystem Management LTW
3-4 Growth & Development of Exothermic Species LTW
5-14 Biotic and Physical Mortality Factors LTW
I. General life table analysis
II. Multi-decrement mortality analysis
III. Co-varying pattern analysis
IV. Impact of prey reproductive potential & generation time on natural enemy efficacy
V. Estimating natural enemy and herbivore host preference
VI. Replacement mortality & pesticides
VII. Methods for estimating field survival & quantifying impact of mortality factors
15 Student Demonstration-Problem Solving  Class
16 First Midterm  
17-22 Plants as the Integrator LTW
I. Crop growth and development: Concept of energy capture and allocation
II. Crop injury, compensation, and tolerance
23 Student Demonstration-Problem Solving Class
  Spring Break  
24-26 Strategies for Managing Resistance Development LTW
I. Resistance: mechanisms & biological consequences
II. Brute-force vs. pesticide mixtures
III. Genetics of resistance: single gene vs. multiple gene dominance
IV. Pyramiding genes
V. Can alternate hosts suppress resistance development?
27 Student Demonstration-Problem Solving Class
28 Second Midterm  
29-34 Assessing the Abundance and Impact of Herbivores & Entomophages LTW
I. A question of purpose
II. Spatial distribution patterns
III. Sampling efficiency: Bias and reliability
IV. Binomial and enumerative sampling
V. Sample size estimation
  Good Friday Holiday  
34 Student Demonstration-Problem Solving Class
36-40 Biologically-Based Economics of Agroecosystem Management LTW
I. Yield maximization vs. profit maximization
II. Yield, quality, and economic thresholds: derivation and use
III. Mortality factors and their effect upon economic thresholds
IV. Multispecies dynamics economic thresholds
V. Concept of biological risk
41 Student Demonstration-Problem Solving Class

 

Downloadable PDF Files

2002 - 1st Midterm Questions  
   
   
   

 

 

Go to Top LadyBug.gif (1027 bytes)

Document Author:

L. T. Wilson
Send mail to L. T. Wilson

Revised:

February 13, 2002
Copyright © 1998LadyBug.gif (1020 bytes) AgroEcoSystems Research Group, TEXAS A&M UNIVERSITY