BORING DEVICE FOR MUSHROOM CULTURE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a boring device for a mushroom culture medium capable of completing the boring by operation at a time, boring scarcely collapsible holes and shortening the number of days of fungal spread at a low cost. SOLUTION: This boring device is obtained by forming the tip shape of a central boring rod 1 arranged in the center into a polygonal pyramidal tip 2 in the boring rods for the mushroom culture medium installed in the device and directing the pyramidal surfaces of the polygonal pyramidal tip 2 to gaps of plural peripheral boring rods 4 arranged in the periphery, making the central boring rod 1 thicker than the peripheral boring rods 4 and thereby capable of preventing the collapse of central hole or peripheral holes without applying a pressure of the culture medium for the mushrooms to the holes even after taking out the central and peripheral boring rods 1 and 4. As a result, even the number of days of fungal spread can be shortened.