I got some kelthane and used it on my kids @2.5 months ago, and the little bastard are still gone!!! I want to thank everyone who made some suggestions.

Our yields are up by 30%, wahooooooooooo!!!!

The only bad thing I've found is that it's kelthane is a discontinued product, and I was able to find a quart, no more available, which is ok because this should last for a very looooooong time!