Device for eradicating selective hornets in house, has box trap provided with electric harp with pitch lying between preset values and with specific thread diameter, where power supply of harp is provided by alternative source

摘要

The device has a box trap provided with an electric harp (2) with a pitch lying between 10 mm and 25 mm and formed with thread diameter of between 1 mm and 10 mm. Power supply of the harp is provided by an alternative source with voltages between 100 V and 300 V, currents between 5 mA and 100 mA and frequency between 1 and 500 Hz. Another electric harp (3) is provided downstream from the former electric harp. The former harp is inclined at an angle between 0 and 90 degrees relative to a base of the box trap.