FRST2091

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Forest Entomology & pathology

Arba Minch University, College of Agricultural Sciences Department of Forestry
Module Title		Forest health
Course Tile:		Forest Entomology & pathology (FRST2091)
Instructor Name:		Dr. Berhanu Lemma
Instructor’s Contact Information		Office:________________________phone:_________________________ Email:__________________________office hours:___________
Course Information		Year: II Semester: II Meeting location:____________Meeting time_______
ECTS		5
Student Workload		Lecture	Tutorial	Group work	Lab/practice	Home study	Total
		48			48	39	135
Course Description		History and importance of forest pathology, relation of plant pathology with forest pathology, classification of tree disease, broad classification of different pathogens causing tree diseases, principle of forest disease management. Definition, importance and scope of entomology. Definition of insect and its position in the animal kingdom, important characters of phylum arthropoda and class insect. External morphology of generalized insect, insect growth and development. History and importance of forest entomology and Principles of forest pests control
Course Goals or Learning Outcome		objectives of the course are: Introduce students with major insect pests and diseases affecting forest crops Enhance student's understanding of scientific research gaps with regard forest insect pests and diseases in Ethiopian forest. Provide a framework that students can use in their profession to best approach insect pests and diseases management. Enhance student's understanding of Pesticide usage, Calibration and recommendation Outcomes: At the end of the course students will be able to; identify the major insect pests and diseases in Ethiopian forest, their biology, ecology, damages, symptoms and management measures evaluate the importance of understanding biology and ecology of pests and diseases in relation to their management Describe the different damages and symptoms caused by insect pests and pathogens determine the working mechanisms of different management strategies and evaluate them for controlling specific insect pest problems and disease calibrate pesticide spray equipment, volume and area of coverage Understand the advantage and disadvantage of different management measures and provide specific remedies
Expectations		Students will be expected to identify the major insect pests and diseases of forests in Ethiopia. They will able to describe the different damages and symptoms caused by insect pests and pathogens. Student will know calibration techniques for pesticide spray equipments. They will have the knowledge and the skill on insect pests and diseases management techniques.
Summary of Teaching Learning Methods		Lectures, discussion, home studies, field visits, laboratory and field practical & reports.
Summary of Assessment Methods		Continuous assessment - quizzes 10% - tests 20% - assignments 10% - lab and field reports 10% Final exam 50%
Policy		v Attendance: It is compulsory come to class on time and every time. If you are going to miss more than three classes during the term, you should not take this course. v Assignments: you must do your assignment on time. No late assignment will be accepted. v Tests/Quizzes: you will have short quizzes and tests almost every class session. If you miss the class or, are late to class, you will miss the quiz or test. No makeup tests or quizzes will be given. v Cheating: you must do your own work and not copy and get answers from someone else.
Schedule		Topics and subtopics
Week	Date
1	Pest Assessment
	Sampling insect population
	Types of insect damage
	Option of pest management
2	Insect pests of major economic importance
	General seedling pests - Crickets, Grasshoppers, Leaf miners, Termites, Cutworms, ant, White Grubs
3	Insect pests of trees
	- Forest insect pests - Insects pests of euclayptus
6	Citrus pests (Mediterranean fruit fly, Orange dog Citrus psylid, Red scale, Cottony cushion scale, False codling moth, Citrus leaf miners)
7	Coffee pests (Coffee antestia, Coffee leaf miner, coffee leaf skeletons, berry borer, stem borers, mealy bug, soft scales)
9	Disease of major economic importance Naming and classification of the disease and the pathogen Economic importance (Extent of loss and Nature of loss) Symptoms of plant diseases
9	Major seedling and tree disease in Ethiopia
	Damping off and seedling blight Root rots (Root rots of annuals, Root and Foot rots of trees) Wilts (Fungal wilts, Bacterial wilts) Mildews (Downy mildews, Powdery mildew) Spots and blights Rusts (tree rusts) Smuts (Covered smut. Loose smut, Head smut ) Anthracnose Viral disease · Nematodes
ACTIVITIES	Field trips to various sites 1.1 Make pest and disease assessment practices 1.2 Observe pest damages and disease symptoms 1.3 Collect different samples of pests and disease 2. Pesticide usage 2.1 Calibration 2.1.1 Calibration of manual Knapsack sprayer 2.1.2 Calibration of tractor mounted boom sprayer 2.1.3 A film show on calibration of tractor mounted sprayer 2.2 Application equipment 3. Laboratory work on: 3.1 Observation and identification of important insect pests and diseases of trees 3.2 Preservation of insect and disease sample 3.3 Isolation of different plant pathogens 3.4 Purification of plant pathogens 3.5 Inoculation of different plant pathogens
References	1. Agrios, G.N. 2005. Plant Pathology. Academic press 2. Hill, D.S. and Waller, J.M. 1990. Pests and Diseases of Tropical Crops. Vol. I Longman Scientific and Technical 3. Hill, D.S. and Waller, J.M. 1988. Pests and Diseases of Tropical Crops. Vol. II Longman. UK.pp432. 4. Dent D. 1989. Insect pest management. CAB International 5. Tsedeke Abate edn. 1985. A review of crop protection research in Ethiopia. Proceedings of the first Ethiopian crop protection Symposium. IAR, Addis Ababa.:

Teacher: Berhanu Lemma