 | OPENING ADDRESS (I. KOVÁCS, J. VÁNCSA, R.H. KRISTENSEN, G. MATHYS, A.F. POSNETTE, A.F. MURANT) |
| PRACTICAL ASPECTS OF THE PROGRAM ON THE PRODUCTION OF VIRUS FREE PROPAGATING MATERIAL IN HUNGARY (B. NAGY) |
| USE AND VERSATILITY OF THE IMMUNOENZYMATIC ELISA PROCEDURE IN THE DETECTION OF DIFFERENT STRAINS OF AN APPLE CHLOROTIC LEAF SPOT VIRUS (G. Detienne, R. Delbos, J. Dunez) |
| DETECTION OF TOMATO RINGSPOT VIRUS IN APPLE AND PEACH BY ELISA (R.M. LISTER, W.R. ALLEN, D. GONSALVES, A.R. GOTLIEB, C.A. POWELL, R.F. STOUFFER) |
| PRELIMINARY STUDIES ON THE ANTAGONISM BETWEEN STRAINS OF PLUM POX VIRUS (C. KERLAN, P. MAISON, M. LANSAC, J. DUNEZ) |
| SEROLOGICAL DETECTION OF APPLE CHLOROTIC LEAF SPOT VIRUS (CLSV) AND APPLE STEM GROOVING VIRUS (SGV) IN APPLE TREES (E. FUCHS) |
| SOME PROPERTIES OF A NUCLEIC ACID ASSOCIATED WITH LITTLE CHERRY DISEASE (R.I. HAMILTON, J.A. DODDS, J. RAINE) |
| IMPORTANCE AND METHODS OF CHECKING FRUIT TREES FOR TOLERANCE TO VIRUS AND MYCOPLASMA DISEASES (H. KEGLER, H. KLEINHEMPEL, T. VERDEREVSKAJA, D. TRIFONOV, C. FISCHER) |
| SELECTION OF TWO APRICOT VARIETIES RESISTANT TO SHARKA VIRUS (G.D. SYRGIANNIDIS) |
| PEACH RESISTANCE TO APHID VECTORS OF PLUM POX VIRUS (G. MASSONIÉ, P. MAISON) |
| TRANSMISSION OF THE STRAWBERRY MILD YELLOW EDGE AND STRAWBERRY CRINKLE VIRUS BY THE STRAWBERRY APHID CHAETOSIPHON FRAGAEFOLII (H. KRCZAL) |
| PARTICLES OF RASPBERRY VEIN CHLOROSIS VIRUS IN THE APHID VECTOR, APHIS IDAEI (A.F. MURANT, I.M. ROBERTS) |
| INVESTIGATIONS ON CARNATION RINGSPOT VIRUS IN FRUIT TREES (H. KLEINHEMPEL, G. GRUBER, H. KEGLER) |
| PROPERTIES OF A STRAIN OF STRAWBERRY LATENT RINGSPOT VIRUS, ASSOCIATED WITH A ROSETTING DISEASE OF PEACH IN NORTHERN ITALY (G. BELLI, A. FORTUSINI, G. VEGETTI) |
| SOME PROPERTIES OF TOBACCO NECROSIS VIRUS ISOLATED FROM PLUMS (K. PAULECHOVÁ, H. BAUMGARTNEROVÁ) |
| CUCUMBER MOSAIC VIRUS FROM PRUNUS DOMESTICA: SOME DISEASES INCITED IN HERBACEOUS SPECIES IN THE PRESENCE AND ABSENCE OF A SMALL REPLICATING RNA (H.E. WATERWORTH, J.M. KAPER) |
| CHERRY MOTTLE LEAF (M.V. BABOVIC, M. PERIŠIC, M. MATIJEVIC) |
| ANTISERUM PRODUCTION OF CHERRY LEAF ROLL VIRUS ISOLATED FROM SOUR CHERRY IN HUNGARY (V. SCHUSTER, J. VÉRTESY) |
| THE PREVALENCE OF CHERRY LEAF ROLL VIRUS IN JUGLANS REGIA IN THE UNITED KINGDOM (J.I. COOPER) |
| ETIOLOGY AND NATURAL SPREAD OF BLACKLINE DISEASE OF ENGLISH WALNUT TREES (S.M. MIRCETICH, G.A. DEZOETEN, J.A. LAURITIS) |
| GLASSHOUSE INDEXING FOR FRUIT TREE VIRUSES (P.R. FRIDLUND) |
| TRANSMISSION EXPERIMENTS WITH PSEUDO-POX AND SIMILAR DISORDERS OF PLUM (G. SCHMID) |
| THE DETECTION OF LATENT VIRUSES AND MYCOPLASMA-LIKE ORGANISMS IN PEAR (G. HAMDORF) |
| A POTENTIAL INDICATOR FOR DETECTION OF VIRUS AND MYCOPLASMA THAT INFECT FRUIT TREES (E. GHEORGHIU) |
| DIFFERENT SYMPTOMS OF THE PEACH LATENT MOSAIC (J.C. DESVIGNES) |
| SELECTION OF VIRUS-FREE ALMOND CLONES AND INVESTIGATIONS ON PRUNUS VIRUSES IN MOROCCO (H. FISCHER, G. BAUMANN) |
| INVESTIGATION OF PEACH AS A HOST OF SHARKA (PLUM POX) VIRUS (M. RANKOVIC, D. ŠUTIC) |
| GF 31, A RELIABLE MYROBALAN FIELD INDICATOR FOR RAPID DETECTION OF PLUM POX VIRUS (M. NÉMETH, M. KÖLBER) |
| THE RESPONSE OF SEVERAL PLUM CULTIVARS TO INFECTION WITH PLUM POX VIRUS (B. ZAWADZKA) |
| INCIDENCE OF PRUNUS NECROTIC RINGSPOT VIRUS (PNRV) AND PRUNE DWARF VIRUS (PDV) IN CHERRY ORCHARDS (T. GERGINOVA) |
| AN UNUSUAL SPREAD OF SHARKA VIRUS (M.J. JORDOVIC) |
| FRUIT TREE VIRUS INFECTIONS OF WOODY EXOTIC AND INDIGENOUS PLANTS IN BRITAIN (J.B. SWEET) |
| GRAFT TRANSMISSION OF APRICOT CHLOROTIC LEAF ROLL FROM AN APPLE TREE AFFECTED BY PROLIFERATION (G. LLACER, J.A. SANCHEZ-CAPUCHINO, R. CASANOVA, J.B. FORNER) |
| SOME RESULTS OF SEVERAL YEARS' STUDY ON APPLE PROLIFERATION DISEASE (V. SEIDL) |
| EFFECT OF PREPLANT SOIL FUMIGATION ON THE CONTROL OF PRUNUS STEM PITTING AND THE GROWTH OF LATE SUNHAVEN PEACH TREES (R.F. STOUFFER, P.D. MOWERY) |
| THE USE OF ELECTRIC CURRENT (R.A.C.E.)* FOR OBTAINING MOSAIC-FREE ALMONDS (A. QUACQUARELLI, D. GALLITELLI, V. SAVINO, P. PIAZZOLLA) |
| SYSTEM OF VIRUS ELIMINATION BY THERMOTHERAPY IN FRUIT TREES (S. ACHMET, J. VÉRTESY, M. WEBER) |
| IN VITRO PROPAGATION OF PRUNUS PERSICA AND P. PERSICO-DAVIDIANA SHOOT TIPS IN ORDER TO GET VIRUS-FREE PLANTS (J. VÉRTESY) |
| EXPERIMENTAL RESULTS CONCERNING THE APPLE RUBBERY WOOD MYCOPLASMA IN ROMANIA (N. MINOIU, M. ISAC, K. PATTANTYÚS, M. STIRBAN, C. CRACIUN, M. STRAULEA) |
| REMISSION OF SYMPTOMS OF APPLE PROLIFERATION, AFTER INJECTION OF CONCENTRATED TETRACYCLINE SOLUTIONS (R. CASANOVA, G. LLACER, J.A. SANCHEZ-CAPUCHINO) |
| NEW OBSERVATIONS ON A PEACH DECLINE DISEASE IN GREECE AND ITS ETIOLOGY (D. TSIALIS, I. RUMBOS) |
| THE SWOLLEN SHOOT DISEASE OF CACAO IN TOGO (M. PARTIOT, E.K. DJIEKPOR, Y.K. AMEFIA, A. SEGBOR) |
| RHABDOVIRUS IN EUONYMUS JAPONICA (N. PLEŠE, Z. ERIC) |
| AN EVALUATION OF HERBACEOUS HOSTS OF SHARKA (PLUM POX) VIRUS (G. MORVAN, M. CHASTELLIERE) |
| USE OF PRUNUS TOMENTOSA FOR THE DETECTION AND DIFFERENTIATION OF SHARKA AND OTHER VIRUSES OF PLUM (M. RANKOVIC) |
| SUSCEPTIBILITY OF STANLEY PLUM VARIETY TO SHARKA VIRUS (H. FESTIC) |
| CYTOLOGICAL CHANGES OF PLANTS INFECTED WITH PLUM POX VIRUS (W. GOLINOWSKI, G. GARBACZEWSKA) |
| OCCURRENCE OF TOMATO BUSHY STUNT VIRUS IN PRUNUS SP. IN CZECHOSLOVAKIA (L. ALBRECHTOVÁ, J. POLÁK, V. KUDELA) |
| SOME DISEASES OF FRUIT TREES IN WHICH THE TOMATO BUSHY STUNT VIRUS OCCURS AND NEW NATURAL HOSTS OF THIS VIRUS (J.B. NOVÁK, J. LANZOVÁ) |
| DETECTING PRUNUS NECROTIC RINGSPOT VIRUS IN ROSACEOUS HOSTS BY ENZYME-LINKED IMMUNOSORBENT ASSAY (D.J. BARBARA) |
| USE OF PEROXIDASE LABELLED ANTIBODIES FOR DETECTION OF PLUM POX VIRUS (I. BARNA-VETRÓ, B. GYÖRGY, V. SCHUSTER, R. VARRÓ) |
| RELATIONSHIP AMONG SOME TOBAMOVIRUSES II. SEROLOGICAL CHARACTERIZATION OF A TOBACCO MOSAIC VIRUS ISOLATED FROM PLUM (J. BURGYÁN, L. BECZNER, M. NÉMETH) |
| STRUCTURES AND FUNCTIONS OF THE INTERNATIONAL SOCIETY FOR HORTICULTURAL SCIENCE (G. MATHYS) |
| RESEARCH NOTE ON THE DIFFUSION OF ILAR VIRUS IN A COLLECTION OF VARIETIES OF PRUNUS DOMESTICA L. (R.F. GELLA) |
| STUDIES FOR THE CHARACTERIZATION OF PRUNE DWARF VIRUS STRAINS (L. KUNZE, M.F. CLARK, C. L. FLEGG) |
| ANALYSIS OF NINE ISOLATES OF ALMOND MOSAIC (M. LANSAC, G. DETIENNE, R. BERNHARD, J. DUNEZ) |
| VIRUSES AND VIRUS-LIKE DISEASES OF MARASKA SOUR CHERRY (CERASUS ACIDA SSP. MARASKA) (A. ŠARIC, Z. VELAGIC) |
| USE OF HEAT TREATMENT AND CROSS PROTECTION TO IDENTIFY SOME SPECIFIC FRUIT TREE VIRUS DISEASES (J.C. DESVIGNES) |
| HAZEL MOSAIC (A. RAGOZZINO) |
| APPLE LATENT VIRUSES AND INCOMPATIBILITY BETWEEN SCIONS AND STOCKS (N. SJOMINA, T. BIVOL) |
| APRICOT BARE TWIG AND UNFRUITFULNESS (C. BLATTNÝ, M. JANECKOVÁ) |
| STRAWBERRY LATENT RINGSPOT AND CUCUMBER GREEN MOTTLE MOSAIC VIRUSES IN APRICOTS WITH THE BARE TWIG AND UNFRUITFULNESS DISEASE SYNDROME (M. CECH, M. FILIGAROVÁ, J. POZDENA, H. BRANIŠOVÁ) |
| STUDY ON THE FLIGHT ACTIVITY OF APHID VECTORS OF PLUM POX VIRUS (G. JENSER, L. SZALAY-MARZSO, A. MESZLENY) |
| CHEMICAL STERILANTS, VIRUS VECTORS, INSECT CONTROL (M.L. SHARMA) |
| DETECTION OF VIRUSES AND OTHER GRAFT-TRANSMISSIBLE VIRUS-LIKE DISEASES OF FRUIT TREES |
