New form of deltamethrin (IMAGE) New York University Caption New York University researchers have created a new crystal form of deltamethrin--a common insecticide used to control malaria--resulting in an insecticide that is up to 12 times more effective against mosquitoes than the existing form. Credit Jingxiang Yang, NYU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.