title: Efficacy of a granule formulation of the insect growth regulator, S-methoprene, against salt-marsh mosquitoes in Florida.
abstract: Three field trials were conducted at Guana River State Park, Florida to evaluate the effectiveness of the granule formulation of methoprene, Altosid XR-G, against salt-marsh mosquitoes. Three applications of Altosid XR-G (1.5% s-methoprene) were made at application rates of 9.0, 4.5, and 2.3 kg/ha. Pupae were collected from control and treated sites after inundation. Under field conditions, Altosid XR-G gave 44.6% control at 67 days posttreatment at Site 1 (9.0 kg/ha), 43.7% control at 67 days posttreatment at Site 2 (4.5 kg/ha), and 38% control at 53 days posttreatment at Site 3 (2.3 kg/ha). All treatments taken together achieved an adjusted 10-wk cumulative mosquito emergence inhibition of 69%. Collections were composed of Ochlerotatus sollicitans 68%, Oc. taeniorhynchus 27%, and Psorophora columbiae 5%.
authors.affiliation: Anastasia Mosquito Control District, 500 Old Beach Road, St. Augustine, FL 32080, USA.
authors.forename: Whitney A
authors.initials: WA
authors.lastname: Qualls
authors.forename: Rui-De
authors.initials: RD
authors.lastname: Xue
mesh_terms: D000818:Animals; D009033:Culicidae; D005431:Florida; D008726:Methoprene / Q000008:administration & dosage*; D009032:Mosquito Control / Q000379:methods*; D011679:Pupa; D053833:Wetlands
chemical_list: D008726:Methoprene