Course code PLV200

PLV200 Diseases, Pests and Weeds in Crop Plants

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Showing course contents for the educational year 2022 - 2023 .

Course responsible: Arne Stensvand
Teachers: Ingerd Skow Hofgaard, Dag Ragnar Blystad, Lars Olav Brandsæter, May Bente Brurberg, Ole Martin Eklo, Nina Svae Johansen, Sven Christer Magnusson
ECTS credits: 15
Faculty: Faculty of Biosciences
Teaching language: NO
(NO=norsk, EN=Engelsk)
Limits of class size:
Teaching exam periods:
This course starts in June block. This course has teaching/evaluation in June block, August block and Autumn parallel.
Course frequency: Annually
First time: Study year 2010-2011
Preferential right:
Course contents:
Syptoms, detection and identification of the most important diseases (fungi, bacteria and virus), pests (nematodes, insects, mites and slugs) and weeds will be taught through lectures, demonstrations, lab practicals and field visits. The students shall make a herbarium with representative samples of the most important organisms in each of the categoies diseases, pests and weeds. Life cycles and biology will be taught by lectures, lab practicals and self study. Principles and methods for management of pests, diseases and weeds will be taught focussing on sustainable strategies.
Learning outcome:
The students shall know the most important pests, diseases and weeds in crop plants, and be able to select the optimal strategies for control.
Learning activities:
Lectures, demonstrations, lab practicals and field visits. Self study. The students shall make a herbarium with representative samples of the most important organisms. Exercises during the course, in for example diagnosing pests, diseases and weeds.
Teaching support:
Via Canvas. Direct contact with teachers, but contact through e-mail prior to meetings is recommended.

Tronsmo, A.M., Collinge, D.B., Djurle, A., Munk, L., Yuen, J., Tronsmo, A. (2020) Plant Pathology and Plant Diseases. CABI International.


Hofsvang, T. (2011): Bekjempelse av skadedyr i jord- og hagebruk. Kompendium, elektronisk utgave.


Streibig, J.C., Andreasen, C. (2009): Weed Science. Compendium. KU-Life. SL books.

Information about additional reading will be posted on Canvas

Chemistry (KJM100), Botany (BOT100), Introductory Plant Physiology(BOT130), Microbiology (BIO130) and Genetics (BIO120).
Recommended prerequisites:
Plant Physiology (BOT200), Introductory Ecology (ECOL100), Cell biology (BIO100), Organic chemistry (KJM110), Biochemistry (KJB200), General zoology (ZOOL100) and Entomology (ZOOL220)
Mandatory activity:


Participation in field practicals and exercises and group work. There will often be exercises and group work during the same lessons as lectures. In that case attendance is required.

The final written exam counts 80%. Herbarium, lab practicals, reports and tests count totally 20%. 
Nominal workload:
375 hours. June block: 110 h August block: 40 h Autumn parallel: 225 h
Entrance requirements:
Special requirements in Science
Reduction of credits:
Overlap of 5 credits with PLV210
Type of course:
Lectures and demonstrations 60 h. Lab exersise 30 h. Field visit based practicals 60 h (June block and August block)
External examiner for the final exam.
Allowed examination aids: A1 No calculator, no other aids
Examination details: Combined assessment: Letter grades