EcoZone International LLC Riverside, California, United States
Abstract: To face the challenges of emerging and resurging mosquitoes and mosquito-borne diseases, research, and development on novel larvicidal active ingredients or innovated formulations is critically important, particularly when we are at historical low in environmentally friendly products. A new product line OmniPreneTM, including 4.25% granules, and its extended products water-soluble pouch (WSP) and extended WSP (XWSP), as well as microencapsulated suspension (CS) has been developed, evaluated, and registered with the United States Environment Protection Agency (US EPA). The granular formulation provided over 90% efficacy against Aedes and Anopheles for at least 49 days, and against Culex for up to 42 days at 2.5-10 lb/ac when water depth was 12-in. The control levels were further elevated when water was 6-in, where over 90% control was observed for 63 days against Aedes and Anopheles, but 56 days against Culex. The WSP and XWSP were customized for persistent production sources such massive urban storm water drainage systems with over 90% control for 105 and 266 days respectively against the southern house mosquito Culex quinquefasciatus in simulated catch basins at 1 pouch/basin. As to the liquid formulation OmniPrene 20CS, it provided greater than 90% control for 14-21 days against Aedes aegypti, at least 21 days against Anopheles hermsi and up to 14 days against Culex quinquefasciatus when it was applied at the label rate of ¾ and 1 OZ/ac. It is anticipated that this new product line will add to the new arsenals in combating mosquitoes of public health concern.
