Cornwall continues to prove a hot spot for the pathogen where two outbreaks were identified on 17 and 22 March.
P. Ramorum struck at a site in Lancashire on 21 March, also affecting rhododendron.
On 22 March FERA identified P. Ramorum on vaccinium in Birmingham, and on pieris in Devon on 23 March.
The final outbreak flagged in the report was in Wales affecting Vaccinium on 18 March.
The rash of outbreaks follow hopes expressed at a Phytophthora Industry Liaison Group meeting that the spread of the pathogen would lessen this year.