The council responsible for poisoning thousands of bees in the eastern Sydney suburb of Paddington is facing swarms of criticism for the drastic action.
The move to spray the bees with poison rather than relocate the hive attracted backlash online, after the ABC reported that up to 50,000 bees could have been exterminated.
Mr Mulvany, a beekeeper himself, lends his services to relocating hives for people.
Relocation has become an increasingly accessible alternative in recent years, with people able to find local beekeepers easily online.
The presence of beetles in the hive can complicate relocation, Mr Mulvany said.
"If there's beetle larvae in the hive it would be less attractive to put into a box and take away."
However there are "natural solutions" which can be used to deal with beetle infestations, he said.
A local resident told the ABC that dead bees fell onto the pavement and covered an area "a metre long and half a metre wide and three centimetres deep".
Mr Mulvany took to the Facebook page of Save the Bees Australia, which has over 60,000 likes, to encourage people to call the council and voice their opinion.
"I imagine that the phone to the council would be totally clogged up," he said.
"People are really furious."