Lethal trapping might be practical in areas less than an acre where children, pets, or other wildlife are not likely to disturb traps. Use rat-sized snap traps baited with peanut butter and sunflower seeds, pieces of fruit, or vegetables. Place the traps where chipmunks have been seen moving or feeding, or at burrow entry points.

To avoid attracting birds or non-target squirrels, conceal traps by placing them under plants next to active burrows, or under inverted boxes with a 2-inch hole cut in each end. Alternatively, if placing the traps next to a wall or structure, conceal them by leaning boards over the traps.

Breeding seasons should be considered. Delay trapping until young are active.