Note
For mosquito control in Florida, the usual aerial application rate for fenthion is 0.029 Ib/acre (32.5 g/ha). The pesticide is often applied as a thermal fog by C-47 aircraft. The thermal fog mixture contains 1.5% fenthion, 33.5% fog oil and 65% no. 2 diesel fuel (Lee County Mosquito aontrol District, 1985). This paper describes the occurrence and persistence of fenthion after aerial spraying over saltmarsh water.