[What is wrong with Houston? Are they waiting for the politicians to deal with this problem?]
I believe there’s a year round open season on feral hogs nationwide. But feral hogs are like mice. They can’t be sold as pork commercially because of federal regulations, so shooting or trapping is all cost and no profit. Some farmers do allow hunters to traipse through their land to hunt, but they charge hundreds of dollars, so there is that cost barrier. And while abundant, feral hogs are smart, elusive and notoriously hard to locate.