General Information:

Malathion is a broad-spectrum insecticide. It is moderately soluble in water and readily soluible in many organic solvents. It is quite volatile and has a low potential for leaching to groundwater. Malathion is not usually persistent in soil or water systems. It is moderately toxic to mammals, a cholineserase inhibitor and a neurotoxin. Malathion is highly toxic to honey bees and aquatic species with the exception of algae. It is moderately toxic to birds and earthworms.

EPA/USP Method

USP Method 561 - Phosphorus Pesticides: Determination of pesticides in articles of botanical origin by gas chromatography. Many botanicals are treated as dietary supplements and are subject to statutory provisions that govern foods.