If you find moths on your yarn or fabric...
In short: it works (and is probably the fastest way to deal with the problem)
Edit: now with the correct link
(PDF) Effects of Microwave Radiation on the Webbing Clothes Moth, Tineola bisselliella (Humm.) and Textiles
https://www.researchgate.net/publication/297435465_Effects_of_Microwave_Radiation_on_the_Webbing_Clothes_Moth_Tineola_bisselliella_Humm_and_Textiles
#fiberarts @fiberarts #knitting #crochet #sewing #textile @knitting @crochet