 | OPENING ADDRESS (G.S. Roosje) |
| REFLECTIONS ON PLANT HEALTH REGULATIONS AND QUARANTINE ASPECTS OF FIREBLIGHT (G. Mathys) |
| WEATHER ANALYSIS AND FIREBLIGHT IN THE NETHERLANDS FROM 1971–1978 (E. Billing, C.A.R. Meijneke) |
| THE DEVELOPMENT OF FIRE BLIGHT IN THE NETHERLANDS DURING 1979 AND ITS EXPLANATION BY THE SYSTEM BILLING (C.A.R. Meijneke, M. van Teylingen) |
| MONITORING OF EPIPHYTIC ERWINIA AMYLOVORA AND THE INCIDENCE OF FIRE BLIGHT OF APPLE AND PEAR IN SOUTHWESTERN ONTARIO (W.G. Bonn) |
| SEASONAL CHANGES OF EPIPHYTIC ERWINIA AMYLOVORA ON ORNAMENTALS IN RELATION TO WEATHER CONDITIONS AND THE COURSE OF INFECTION (W. Brulez, W. Zeller) |
| WEATHER ANALYSIS AND FIREBLIGHT IN DIFFERENT CLIMATES (E. Billing) |
| OVERWINTERING OF ERWINIA AMYLOVORA: SOURCES OF INOCULUM IN SPRING (J.P. Paulin) |
| SOME FACTORS AFFECTING SELECTION FOR FIRE BLIGHT RESISTANCE IN PEAR (T. van der Zwet, R.L. Bell, R.C. Blake) |
| PEAR BREEDING FOR FIREBLIGHT RESISTANCE PROGRAM AND FIRST STUDIES IN FRANCE (B. Thibault) |
| VARIETAL DIFFERENCES IN INCIDENCE OF INFECTION OF APPLE BLOSSOMS AND SHOOTS BY ERWINIA AMYLOVORA (FIRE BLIGHT) (Herb S. Aldwinckle, J.L. Norelli) |
| SEVERITY OF ERWINIA AMYLOVORA (FIRE BLIGHT) INFECTION ON SHOOTS OF APPLE CULTIVARS: CUMULATIVE RESULTS (Herb S. Aldwinckle) |
| THE VALUE OF TOPLEAF INOCULATION TO DEMONSTRATE GENETIC RESISTANCE IN POMOIDEAE SPECIES TO ERWINIA AMYLOVORA (BURR.) WINSLOW ET AL. (H.P. Maas Geesteranus, J. Heyting) |
| SOME PROGRESS IN BREEDING COTONEASTER FOR RESISTANCE TO FIREBLIGHT, ERWINIA AMYLOVORA (BURR.) WINSLOW ET AL (F. Persiel, W. Zeller) |
| PHYTOSANITARY MEASURES TO PREVENT THE INTRODUCTION OF FIREBLIGHT INTO SWITZERLAND (R. Grimm) |
| FIVE YEARS OF EXPERIENCE IN FIREBLIGHT CONTROL IN LOWER RHINE AREA (D. Massfeller) |
| EXPERIENCE WITH CHEMICALS AGAINST ERWINIA AMYLOVORA (T. Kooistra, J.J.J. Langeslag) |
| CGA 78039, A NOVEL BACTERICIDE FOR THE CONTROL OF FIREBLIGHT (T. Egli, W. Zeller) |
| METHODS FOR EVALUATING NEW CHEMICALS FOR THE CONTROL OF INFECTION OF APPLE BY ERWINIA AMYLOVORA (FIRE BLIGHT) (J.L. Norelli, J.D. Gilpatrick) |
| THE SYSTEM USED IN BELGIUM TO MONITOR ERWINIA AMYLOVORA (BURRILL) WINSLOW ET AL. (J. Geenen, R. Vantomme, R. Veldeman) |
| NO ANTAGONISTIC EFFECT OF LEAF SURFACE MICROORGANISMS ON THE FIREBLIGHT PATHOGEN IN MODEL EXPERIMENTS (D. Knösel) |
| BIOLOGICAL CONTROL OF FIRE BLIGHT (Steven V. Beer) |
| MOTILITY AND CHEMOTAXIS OF ERWINIA AMYLOVORA (A.K. Raymundo, S.M. Ries) |
| INFLUENCE OF THE HONEYBEE ON FIREBLIGHT TRANSMISSION (O. Van Laere, M. De Greef, L. De Wael) |
