Since, in the case of rearing or in the case of transporting natural enemies efficiently in large quantities in a container, it is difficult to sufficiently prevent cannibalization with use of a conventional shelter, there has been a demand for a method that improves the effect of preventing cannibalization during rearing or transportation. The present invention provides (i) a shelter (1) for use in the rearing or transportation of natural enemies, the shelter including a group of sheet compositions (2) containing cellulose fibers and (ii) a method for rearing and transporting natural enemies, the method including using the shelter.
