A worm fence (5), which preferably consists of plastic corrugated fencing and whose lower part is inserted or buried in the ground (6), on whose upper, outer region two metal strip conductors (1; 2) are provided which are advantageously arranged parallel and are operatively connected to an electric field fence unit (3). In a preferred embodiment, the rechargeable batteries of the field fence unit (3) are connected to a solar cell (4). <IMAGE>