pyrethroids and ants

From: "john s. smolowe" johnsmolowe at pacbell.net> on 2002.01.30 at 03:57:26(8095) I did some research at the website Pesticide Action Network Pesticide Database http://www.pesticideinfo.org +More which lists extensive information about pesticides including a database searchable both by chemical name and by brand name. Each product has Product ID, Ingredients, Product Uses, Product registration history, and Manufacturing Company. Toxicity is listed in one of 4 categories (derived from the Environmental Protection Agency) with 4 being unlikely to present acute hazard, 3 slightly hazardous, 2 moderately hazardous, and 1 extremely or highly hazardous. Examples of category 1 are Mavrik and sodium hypochlorite. The synthetic pyrethroids permethrin, tetramethrin, and cypermethrin are labeled category 3. For comparison, malathion and diazinon are also category 3. These synthetic pyrethroids turn out to be the major ingredients in many insecticidal dog flea sprays and also the active ingredients in the ubiquitous household insecticide Raid - which may be reassuring or may be alarming. John Smolowe

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