Moths

[overmywaders]

Putting you material;s in a freezer will not kill eggs.

It will if that is where you store your liquid nitrogen.

Dealers in oriental rugs know all about moths. See http://www.jacobsenrugs.com/care.htm#moths and they recommend pyrethrins. Permethrin, a pyrethrin derivative, is the insecticide applied to U.S. Army camouflage clothing for use in Afghanistan - it kills the pernicious sand fleas.

Caveats: Pyrethoids are generally not toxic to mammals, however, they can be fatal to cats. That is why you don't use dog flea repellent on a cat. Pyrethoids kill and repel insects but also kill aquatic organisms.

A pyrethroid is an organic compound similar to the natural pyrethrins produced by the flowers of pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). Pyrethroids now constitute a major commercial household insecticides. In the concentrations used in such products, they may also have insect repellent properties and are generally harmless to human beings in low doses but can harm sensitive individuals. They are usually broken apart by sunlight and the atmosphere in one or two days, and do not significantly affect groundwater quality. Pyrethroids are however toxic to aquatic organisms.

So, you can use pyrethoids safely in your material storage; however, once you tie a fly, leave it out in air and sunshine for a few days.

Regards,
Reed