PURPOSE: To automatically discharge a corpse to the outside of a capturing box by irradiating an organism which is an object for extermination such as a cockroach or a rat with microwaves and exterminating the organism.

CONSTITUTION: An organism which s an object for extermination and enters a capturing box is irradiated with a high frequency and exterminated and a blasting pressure is applied into the box to discharge the corpse to the outside of the capturing box. A cylindrical shelter 7 is vertically movably attached to the interior of a capturing chamber 6 having an inlet 4 and a blasting port 5. An entrance 9 is provided in the lower part of the front end of the shelter 7 and opened and closed with a shutter 12. If a cockroach enters the shelter 7 through the entrance 9, the shutter 12 is pushed down with a driving lever 14 to close the entrance 9. A microwave generated with a magnetron is then applied to kill the cockroach. The operation is repeated while opening and closing the shutter 12. At the end of one day, the driving lever 14 is swung upward with a driving motor 15 to lift the shelter 7. A wind from a cross flow fan 21 is blown from the blasting port 5 into the capturing chamber 6 to discharge the corpse to the cockroach from the inlet 4 to the outside.