Congresses Insects as carriers of plant disease Cultures and culture media Invertebrates Plant diseases Tissue culture Animals as carriers of disease Arthropod vectors Biotechnology Disease vectors Epidemiology Forest products Forestry biotechnology Insect cell biotechnology Insect vectors Insects as carriers of disease Leafhoppers Methodology Micro-organisms, Phytopathogenic Mycoplasma-like organisms Mycoplasmatales Parasites Pathogenic microorganisms Research Tissue Culture Vector control Vector-pathogen relationships Virology--Research Virus diseases of plants