List price   € 11     This title is available in ActaHort CD-rom format only - not available in print format Convener   G.P. Martelli  Editor   H.H. van der Borg  Publication date   1 July 1981  ISSN   0567-7572  Number of articles   6  Volumes   1  Place   Bari, Italy  Online articles: PREFACE (D. D.G.A. Walkey) ECOLOGY OF CUCUMBER MOSAIC VIRUS IN THE RHONE VALLEY OF FRANCE (J.B. Quiot) PRODUCTION OF VIRUS-FREE PLANTS (D.G.A. Walkey) VIRUS AND VIROID DISEASES OF CUCURBITS (O. Lovisolo) TOMATO LEAF-CURL COMPLEX IN INDIA (A. Misra, S. Jha, N. Chattopadhyaya, B. Sharma, R. Sinha) ECOLOGY OF NEMATODE-BORNE VIRUSES AFFECTING VEGETABLE CROPS (A.F. Murant) THE ECOLOGY OF YELLOWING VIRUSES (J.E. Duffus)