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Facoltà di Scienze Agrarie e Alimentari Università degli Studi di Milano
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Grapevine diseases and their control
Code: G2502B
Teacher:  Silvia Laura Toffolatti
CFU subdivision: Lectures: 4
Practices in classroom: 0,5
Other: 0,5
Basic aims:  Unit 1: The course aims to teach how to manage animal pests according to the most recent pest management strategies, that rely on the most environmental friendly techniques, to minimize undesired side effects and optimize the response of the vineyard agroecosystem to the attacks of potentially harmful organisms.
Unit 2: The course provides the students with the basic knowledge on the biology of plant pathogens (fungi, bacteria, virus and phytoplasms), on the diagnostic techniques, on the epidemiology of the main grapevine diseases and on the criteria and tools for an integrated disease control.
Acquired skills:  Unit 1: After completing this course the student should have acquired the ability to i) recognize the animal pests of vine, ii) assess the extent of any yield loss, iii) choose and apply the best pest management options.
Unit 2: Knowledge on the main grapevine pathogens and on the epidemiology of the most frequent diseases, skill required to diagnose the most common grapevine disease and to manage the disease control in different environments.
Course contents:  After a general introduction on the principles of plant pathology, the course deals with the main characteristics of the causal agents of plant diseases, fungi, virus, phytoplasmas and bacteria, the detection and identification techniques, the epidemiology and disease management in viticulture. The main diseases induced in grapevine by virus, phytoplamas and bacteria are described together with the most suitable control criteria.
Program:  General principles and history of plant pathology. Economic incidence of grapevine diseases. Disease classification. PHYTOPATHOLOGICAL AGENTS: Virus, viroids and phytoplasmas: main characteristics, infection process, vectors and epidemiology. Bacteria: general characteristics. Fungi: general characteristics, reproductive structures, epidemiology of fungal diseases. DIAGNOSIS: General principles and criteria. Koch's postulates. Field observations and laboratory procedures: traditional and innovative techniques for identification of disease agents. DISEASE CONTROL: Use of restistant or tolerant plants. Cultural methods. Biological methods. Chemical methods. Integrated pest management. MAIN GRAPEVINE DISEASES AND CONTROL METHODS: Viral diseases: grapevine fanleaf, leafroll and rugose wood. PHytoplasma diseases: flavescence dorée, bois noir. Bacterial diseases: tumor. Fungal diseases: downy mildew, powdery mildew, grey mould, secondary rots, wood diseases.
Prerequisites:  Basic knowledge of microbiology, biochemistry and grapevine physiology, genetics and grapevine cultural techniques
Preparatory instructions:  none
Learning materials:  Slides used duing classes; scientific papers Book: G. Belli, 'Elementi di Patologia Vegetale', Piccin
Other info:  Oral examination based on several questions about the topics treated during the course
Program of Grapevine diseases and their control (pdf version)
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