Perry responded: "This is an absolutely heartless response".
"There aren't even politics involved", she added.
The singer was outraged after the president threatened to withdraw federal funding from the forest service.
There is no reason for these massive, deadly and costly forest fires in California except that forest management is so poor. Remedy now, or no more Fed payments!' "Just good American families losing their homes as you tweet, evacuating into shelters".
The comments were Trump's first about the massive California wildfires, including the Camp Fire which incinerated most of the Butte County town of Paradise and killed at least nine people.
On Friday evening Trump issued an emergency declaration providing federal funds to help the thousands of firefighters struggling to contain the flames that have already torched more than 200 square miles across the state.