Common miticides: Methoprene is virtually harmless to non-insects, and the US EPA has exempted it from tolerance. It is widely available in supermarkets, ctc. Hydroprene is toxic to fish & perhaps birds. Both are for indoor use only, as they break down in sunlight. Methoprene is applied as a wetting spray, hydroprene as an aerosol space spray. Neither will affect adult insects; they work on future generations by preventing growth or maturation. Permethrin can be applied as a spray. The effects are not limited to mites: lice, cockroaches, fleas, mosquitos, & other insects will be affected. Permethrin, however, is not known to harm mammals or birds, as it has a low mammalian toxicity and is poorly absorbed by skin.
This information was adapted from the website of The Industrial Fumigant Company of Olathe, Kansas 
, and checked against a US EPA website.
External links
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Last updated on Saturday August 16, 2008 at 00:56:36 PDT (GMT -0700)
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