Biological control of Erwinia amylovora
Experiments were carried out in the United Kingdom to test fluorescent Pseudomonas spp. in their activity against Erwinia amylovora (EPPO A2 organism) on hawthorn (Crataegus monogyna) under protected conditions.
A preselection of antagonist isolates was carried out on immature pear fruits. The selected isolates were applied to hawthorn in polythene tunnels and glasshouses. Two isolates gave significant control of shoot blight and blossom blight, equalling in some cases the control potential of chemical treatments as well as that of experimental bactericides. The timing of the pseudomonad application in relation to the pathogen inoculation had a significant influence on the control of blossom blight.
Sources
Wilson, M.; Epton, H.A.S.; Sigee, D.C. (1992) Biological control of fire blight of hawthorn (Crataegus monogyna) with fluorescent Pseudomonas spp. under protected conditions.
Journal of Phytopathology 136, 16-26.