Pouring gasoline or other noxious chemicals into the earth to force rattlesnakes and other animals from their underground homes has been a tactic of some hunters and snake wranglers for years. But it has a harmful effect on the environment and wildlife. Now, Texas Parks and Wildlife (TPWD) is considering following in the path of 30 other states and banning the practice in most circumstances.

The technique, known as "gassing" is used to capture and/or kill many different types of animals, including prairie dogs. But its greatest defenders appear to be those involved in "rattlesnake roundups" that are a tradition in parts of the state.

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As far as the prospect that banning the practice will end the "rattlesnake roundup" tradition in Texas, TPWD says that's overblown.

"Many rattlesnake events currently discourage the collection of snakes by gassing," says the Department.