Wormwood has a special fragrance, which can effectively repel mosquitoes. Ignite wormwood or moxa sticks every night, and the smoke emitted can quickly smoke away mosquitoes; Or soak wormwood and calamus in water to mop the floor, or boil them into warm water and apply them to repel mosquitoes. Hanging a dry moxa stick in the shade indoors can also drive away mosquitoes, moths and insects.

Artemisia argyi does contain volatile substances that mosquitoes really don't like, but this smell must be released to be effective in a large area. Hanging a few mugwort has no effect on mosquitoes.