Advances in isolation and identification techniques in recent years led to the increased discovery of novel plant compounds. The area of biopesticides has benefited from this, leading to the discovery of QRD 400, a plant extract from Chenopodium ambrosioides var. ambrosioides – a plant closely related to common lambsquarter. The extract, made up of monoterpenes and sesquiterpenes, work in concert, via several modes of action to control a broad range of soft bodied insects. Extensive testing in field and greenhouse environments have shown QRD to provide good control of a broad array of soft bodied insect and mite pests. In the greenhouse QRD 400 has provided control of thrips, mites, whiteflies, mealybugs and fungus gnats. Plant testing across an array of common greenhouse plants has indicated little potential for it to cause any plant effects or phytotoxicity. Field testing indicates that QRD 400 has particularly good activity on thrips and mites. Other insects controlled include whiteflies, aphids, and mealybugs. In the field QRD 400 will have a fit on small fruits, vegetables and trees & vines. QRD 400 is safe to many beneficial insects, is short lived in the environment and safe to mammals.