PURPOSE: To prevent the contamination of mushrooms with prowling insect pests such as mites sometimes generated in a high probability on the artificial culture production of the mushrooms.

CONSTITUTION: The method for artificially culturing edible mushrooms with a culture container such as a bottle or block is characterized by coating the outside periphery of the air-ventilating mouth of the container with a paste or paste composition containing a repellent against the insect pests or an insecticide or surrounding the outside periphery of the mouth with an adhesive tape, etc., in a head band-like shape, the adhesive tape having a paste or paste composition-impregnated filter paper or non-woven fabric adhering to one side of the adhesive tape.