A search of "wild pigs" on the NYS DEC site leads to:
http://www.dec.ny.gov/animals/70843.htmlThere is no "edict" to eradicate wild hogs but the DEC policies have evolved as the feral swine issue has developed. At various times they have asked folks to shoot them when they had the opportunity, not shoot them since hunting pressure scatters them and causes the reproductive rate and litter size to increase etc. As near as I can tell the current policy is one of simply stating that they are an unregulated species and that you are free to hunt or trap them.
One challenge the DEC has is that swine are regulated only as domestic animals and since they are a non-game species the DEC cannot regulate them or attempt to control them at the source. There hasn't been either state or federal funding available to do eradication work for a few years but that looks like that might change with the new budget cycle.
You can hunt them day or night with any legal implement and can use bait, lights, dogs etc. There are no take limits since they are not regulated. I say "any legal implement" since you can't be in possession of a centerfire rifle in a "shotgun only" area during the regular big game season (any big game season?).
The webpage above asks that you report taking or sighting feral swine. It also lists some of the diseases feral swine can carry. From past experience I'd suggest shoulder length gutting gloves, stay clean. Wikipedia has a good temperature chart for cooking pork to prevent trichinosis at:
http://en.wikipedia.org/wiki/TrichinosisLarge scale trapping of entire groups is the best way to eradicate them but it is labor and time intensive. It is also dependent on having near real-time information on the group and it's daily travel patterns. Something like the trap on the web page below, when made with steel fence posts, works well if it is baited properly and the pigs have a few days to become used to being inside the trap. That leads to the best chance of getting the whole group when the trap is closed on them.
http://www.wilcoxwebworks.com/hs/hogtrapdetailedplans.htmThere is some question as to whether you need a current trapping license to trap swine. There is an exemption to the law as it applies to trapping groundhogs (also a non-regulated species) by a farmer on lands he is actively farming but all other trapping normally requires a license. I asked Gordon Batchellor, the Chief of the Bureau of Wildlife whether a trapping license was need for trapping swine. He referred the question to Pete Fannelli, the Director of Law Enforcement for the DEC, and the best they could say was that you probably do not need the license. They did say that it is a pretty grey area and that the DEC would likely have to use the normal regulatory process to publish appropriate guidance at some future time. I should see Gordon and Pete on the 13th and will ask them about it if I do.
Some of the trapping techniques successfully used for swine elsewhere are illegal in NY so I'd discuss any trapping plans with the Conservation Officers in the county in which you are going to trap. While it is legal to bait swine the minute deer or bear come to the bait you are in violation of Conservation Law. There are ways to bait swine that generally keep the deer and bears from being attracted so, again, I'd consult the local ECOs first since they will be the ones to ticket you or not.
I think the big hog that was referred to was this one. He was apparently semi-domestic and spent as much time away from home as in the barnyard. He was not a fully feral or wild pig but sure was close....
http://blog.syracuse.com/outdoors/2009/01/sempronius_hunter_bags_huge_wi.htmlIn that general area there are breeding pig populations confirmed in the general area of Bear Swamp State Forest on the west side of Skaneateles Lake and another one near Scott on the east side. The second one seems to be the result of wild pigs escaped from the Cold Brook Hunts compound just outside Hewitt State Forest. Most of the bands found north of the PA border area are concentrated around game farms so there is a very strong correlation between the game farms and the loose bands. The ones along the PA border are generally due to natural expansion of the PA swine population.
Good luck filling your freezers and I hope this helps.
Lance