author(s)
Masumeh Khanahmadi, Parvaneh Pakravan, Abbas Hemati Azandaryani, Maryam Negahban and Elmira Ghamari

abstract
In this study, the insecticidal activity Artemisia Haussknechtii essential oil, extract and encapsulated form of essential oils in nanoparticles were investigated. Interfacial compression polymerization method was investigated for nano capsules preparation. The effects of emulsifier composition, co-emulsifier, and temperature on the properties of the nanocapsules were investigated. The scanning electron microscopy of particles proved the preparation of nanoparticles. Fumigant toxicity of oil and extract demonstrated fumigant toxicity against Tribolium castaneum and Sitophilus oryza.