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Advances in understanding the biology and epidemiology of barley yellow dwarf virus (BYDV)

Code: 9781801460521
Douglas Lau, Embrapa Trigo, Brazil; Talita Bernardon Mar, National Council for Scientific and Technological Development Fellow (CNPq) (Embrapa-CNPq), Brazil; Carlos Diego Ribeiro dos Santos, Postgraduate Program in Plant Science, Faculty of Agronomy, Federal University of Rio Grande do Sul (UFRGS), Brazil; Eduardo Engel, Postgraduate Program in Entomology, University of São Paulo, Brazil; and Paulo Roberto do Valle da Silva Pereira, Embrapa Florestas, Brazil

Chapter synopsis: A tri-trophic network of domesticated grasses (host), various aphids (vector) and barley yellow dwarf virus (pathogen) species has been spread by humans from Eurasia to the rest of the world. Understanding how climate, natural and agricultural landscapes challenge pathogens, vectors, and their natural enemies and shape their dynamics is the key to managing this pathosystem. This chapter provides an overview of this complex system and its evolution. The chapter includes a case study of biological control of aphids causing wheat BYDV in Brazil. The current challenge is to create tools that integrate knowledge of this complex pathosystem and facilitate monitoring and decision making for rational management to reduce the burden of disease.

DOI: 10.19103/AS.2021.0092.34
Table of contents 1 Introduction 2 Components of the pathosystem: host plants, viruses and aphid vectors 3 Virus-aphid interactions 4 Virus-host interactions 5 Natural enemies of aphids 6 Case study: biological control of cereal aphids and BYDV management in Brazil 7 Conclusions and future trends 8 Where to look for further information 9 References

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