I would hazard you will have more problems with copperheads than moccasins. The biggest problem with living around cane fields is when they harvest them, you are going to have a rat problem.
Keep the grass cut and avoid any kind of piles (brush-wood whatever) in the back yard. Also having a dog helps- I actually live in town but about 4 houses from Bayou teche and occasionally we get a non venomous snake in the yard-Dog lets us know pretty quick, wife goes ape*****, I go out and throw it over the fence and we're back to normal
