In Tx, some of our places used to smell like a barnyard because of all the pigs. Some of those boars can get big and territorial and the mamma's can be aggressive when they have babies.
Like others have said, you better start trying to get ahead of them now or you wont be able to catch up. We used to manage strictly for deer and turkey and the game biologist told us they can have 4 litters a year and have from 6-12 piglets per litter.