The Katter's Australian Party Leader said on Tuesday there would be "legal consequences" if the Queensland Government failed change the law to allow people to remove bats from their property.
His fears centred on the health risks posed by bats, including hendra virus and lyssavirus.
But Adam Stone, the Greens' lead Senate candidate in Queensland, said Mr Katter was being "reckless and irresponsible".
He said educating the community and investing money in research and development for treatments were better ways of dealing with the risks of disease contraction.
"Katter's simplistic views on animal culling are dangerous and will set efforts to protect endangered species back by many years in Queensland," Mr Stone said.
"The final Senate spot in Queensland is likely to come down to a choice between myself from the Greens or someone from Bob Katter's party."