I just finished making some herbal moth repellent sachets to put in cupboards and drawers. The moth balls that you buy are made from toxic ingredients, so it is much better to make your own. They smell much nicer, too! You can use any strong smelling herbs to repel moths, so I used what I had in my garden – rosemary, lavender, mint, and thyme. I hung up bunches of the herbs in my studio and left them for a couple of weeks to dry, then stripped off the flowers and leaves and mixed them all up together in a tin. I also added some whole cloves for an extra strong aroma.
Making the little fabric bags is a good way to use up scraps of fabric. You can use pretty cottons, muslin, organza, cheesecloth, or really whatever you have on hand. Fill the sachets with the dried herbs, then tie a piece of ribbon or twine around the tops. Hang the sachets in cupboards or place in drawers to keep the moths away from your clothes and linens. Scrunch the sachets once in a while to release the aromas, and once the aroma has faded, empty the bags and replace with some freshly dried herbs.
Update: I have since discovered that it is not a good idea to use organza for the sachets as, when you scrunch them, dust from the herbs escapes through the loose weave of the fabric, and you don’t want plant dust all over your clothes.