RESEARCH REPORT ON ERWINIA AMYLOVORA
The rapid identification of E. amylovora by API 20E is proposed.
The aggressiveness of 14 E. amylovora strains against 15 host plants was determined. Stranvaesia davidiana was the most susceptible host plant, whereas Sorbus aucuparia was the most resistant one.
Compound CGA 78039 was found to be very active against E. amylovora in vitro but did not suppress fire blight symptoms in vivo.
From the 137 bacteria tested for antagonistic effects against 24 E. amylovora isolates, 15 showed a marked activity.