A chicken-wire fence will help keep geese out of gardens, yards and ponds. Electric fences Electric fences are usually used on large estates and golf courses. This will deter geese but won't harm them. Mylar tape to construct a fence around crop areas, lawns and gardens. Two or three strands of Mylar should be sufficient to discourage geese entering your property.
Mylar tape is available at most farming supply stores.
Three-wire monofilament fence. Frightening Before you consider using devices to scare geese away, investigate local bylaws and regulations regarding the use of exploding devices, loud noisemakers and the discharge of firearms. Consider how your neighbours will react to loud noises. Plan to move devices to a different location often so that geese don't get used to them. It's best to use visual repellents such as scarecrows and flags in combination with audio repellents such as automatic exploders and sirens.