The VI International Symposium on Small Fruit Virus Diseases was held, together with the XV International Symposium on Tree Fruit Virus Diseases, under the common title, XV International Symposium on Virus and Virus Diseases of Temperate Fruit Crops, in Vienna, Austria, from 8 to 13 July, 1991. More than 100 scientists from 24 countries attended the Symposium and their names and addresses are given in Appendix II. On behalf of the Working Group, I extend my appreciation to the local Organizing Committee in Vienna for the excellence of the facilities and arrangements that made the Symposium a success.
Contributions at the Symposium were made either as oral presentations or as posters and the substance of these presentations for Small Fruit Virus Diseases is contained in this volume of Acta Horticulturae. Acta Horticulturae Vol. contains the presentations made on Tree Fruit Virus Diseases.
Copies of both volumes may be ordered from the ISHS Secretariat, Dreijenplein 4,6703 HB Wageningen, Netherlands.
I express my thanks to Drs A.N. Adams, R.R. Martin and D.C. Ramsdell for their assistance and advice on the scientific aspects of some of the papers presented in this volume.
At the business meeting of the Working Group, Drs D.C. Ramsdell and Sara Spiegel were elected as the new Chairman and Secretary of the Group respectively.
A list of recommended diagnostic methods and/or indicator species for detecting viruses, viroids, mycoplasma-and rickettsia-like organisms, and virus- like diseases in the 5 major small fruit crop genera is compiled in Appendix I. The recommendations for each crop genera are given with the approval and advice of the following recognised authorites on the virus pathology of these crops; A.N. Adams (hop), R.H Converse (strawberry), A.T. Jones (currants and gooseberry, raspberry and blackberry) and D.C. Ramsdell (blueberry).
(Chairman, ISHS Working Group on
Virus Diseases of Small Fruit Crops)