During 2006–2008, a phytobacteriological investigation on olive plants (Olea europea) was
carried out in Nepal. In commercial olive orchards in Bissingkhel locality, Makwanpur district,
knots (0· 5–3 cm in diameter) resembling those caused by Pseudomonas savastanoi pv.
savastanoi (Gardan et al., 1992) on olive trees, were observed on twigs and branches of 12-
year-old olive plants cv. Frantoio. From knots, bacterial cells were isolated on nutrient agar
medium supplemented by 5% sucrose (NAS). The isolates were positive for oxidase …

Pseudomonas savastanoi pv. savastanoi was identified as the cause of galling on olives
(Olea europaea), cv Barnea in South Australia in May 2003 from a property at Greenfields≈
10 km north of Adelaide. The bacterium was recovered from galls on 2-year-old olive trees
(cv. Barnea) showing symptoms consistent with those attributed to olive knot. Following a
targeted survey of cv. Barnea, further infections were located on 2 to 5-year-old trees in four
other plantings in South Australia. This is the first record of olive knot in Australia.