Why Does Cedar Repel Bugs?

Cedar chips effectively repel insects due to the natural chemicals and oils that they release. The main insect-repelling chemical present in cedar chips is known as thujone. ... In addition to warding off pests, the natural oils present in cedar chips also emit a pleasant aroma.

Does cedar keep bugs away?

Use Cedar Mulch

Cedar has long been used as a natural way to repel and inhibit insects like termites, certain ants, moths, mosquitoes, and cockroaches.

How does cedar kill bugs?

Insects need body fat to stay alive, and cedar oil acts to emulsify their body fats (breaking fat globules up into much smaller emulsion), eventually killing the pests.