title: Effectiveness of methoprene, an insect growth regulator, against malaria vectors in Fars, Iran: a field study.
abstract: Methoprene, an insect growth regulator, was evaluated under field conditions against the main malaria vectors in the Islamic Republic of Iran. The effect of 5, 10 and 20 kg ha(-1) concentration ofmethoprene granule formulation and 100 and 200 mL ha(-1) concentration of EC formulation was measured to determine any changes in Anophelini larval abundance and IE ratio in both rice fields and artificial ponds. In artificial ponds, granular methoprene at a dose of 20 kg ha(-1) inhibited adult emergence by 77.1% after 1 day and 65.9% after 3 days. The emulsifiable concentrate formulation of methoprene at 200 mL ha(-1) inhibited adult emergence by 83.7% after 1 day and 32.2% after 3 days. In rice fields, inhibition of emergence was 44.3% at 20 kg ha(-1) granule and 35.8% for emulsifiable concentrate at 200 mL ha(-1) after 3 days. The results vary depending on the mosquito species, treatment methods, breeding places and type of formulation.
authors.affiliation: Public Health Center, Bushehr Medical University of Science, Bushehr, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Darabi
authors.forename: H
authors.initials: H
authors.lastname: Vatandoost
authors.forename: M R
authors.initials: MR
authors.lastname: Abaei
authors.forename: O
authors.initials: O
authors.lastname: Gharibi
authors.forename: F
authors.initials: F
authors.lastname: Pakbaz
mesh_terms: D000818:Animals; D009033:Culicidae / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D005822:Genetic Vectors; D007300:Insect Control; D007303:Insect Vectors / Q000378:metabolism*; D007306:Insecticides / Q000494:pharmacology; D007492:Iran; D007605:Juvenile Hormones; D008288:Malaria / Q000517:prevention & control*; D008726:Methoprene / Q000494:pharmacology*
chemical_list: D007306:Insecticides; D007605:Juvenile Hormones; D008726:Methoprene