Bark beetle trap with a damaging device that damages the bark beetles by means of dielectric-barrier discharges

A bark beetle trap comprising

• a housing with a bottom and entry slots above the bottom,
• an attraction device configured for releasing volatile attractants in the housing,
• a size selection device arranged at the bottom of the housing, and
• a damaging device arranged below the size selection device and including a high-voltage electrode, a counter-electrode arranged at a free distance from the high-voltage electrode, and a high-voltage source applying a high voltage between the high-voltage electrode and the counter-electrode,
• wherein at least one of the high-voltage electrode or the counter-electrode is provided with a dielectric barrier adjoining the free distance, and
• wherein the high-voltage source is configured to vary the high voltage applied between the high-voltage electrode and the counter-electrode so quickly that electrical discharges, that, due to the dielectric barrier, are dielectric-barrier discharges, are generated between the high-voltage electrode and the counter-electrode, bark beetles getting into an area of the free distance between the high-voltage electrode and the counter-electrode being damaged by means of the dielectric-barrier discharges between the high-voltage electrode and the counter-electrode at least to such an extent that the bark beetles are no longer able to move in a coordinated manner.