With the number of hunters in Louisiana allowing them to be hunted/trapped year round would be effective.
Most environmentalists do not like hogs because there are few critters who do more damage to an eco-system and they are not natural to the area. They also spread disease that damage native animal populations and destroy native plants.
I like bacon.
I think Louisiana and Texas have year round hunting of feral hogs with the purchase of a hunting license. In the 1930’s my grandfather paid for his first home by trapping hogs in the Neches River bottom. He paid the carpenter with bacon. Hunters around my home love to hog hunt using traps and dogs. Some people feed out some of the hogs and eat the pork. Feral hog meat is very strong and I don’t like it. We don’t have very many PETA people around here.