Four hives in the Avenue, March, were pushed over killing “potentially thousands of bees, on June 1.
He is described as white, slim, about 60 with short grey hair and a beard. He was wearing a blue baseball cap, blue anorak and jeans.
PCSO Rachael Chelverton said: “This was a reckless act which killed potentially thousands of bees and damaged four hives.
“It is likely the offender would have been stung during the incident and I would urge anyone with any information to call police.”
Contact police on the 101 number.