During their development, wax moth larvae feed on the combs and their contents. They also tunnel their way through the wax, quickly rendering the combs useless. Our brochure 'Protecting Combs from Wax Moth Damage' (in French, German and Italian) provides a good overview of the biology of this pest.
Protection of honey combs from moth damage (PDF, 179 kB, 15.02.2017)
J.D. Charrière, A. Imdorf (2006)