title: Laboratory evaluation of five pesticides for control of Leptotrombidium fletcheri (Acari: Trombiculidae).
abstract: Five pesticides were evaluated against laboratory colonies of Leptotrombidium fletcheri (Womersly and Heaslip) by the Pasteur pipet technique. The pesticides were dieldrin (LC50 = 3.6 ppm, LC99 = 18.2 ppm), bromopropylate (LC50 = 9.2 ppm, LC99 = 239.6 ppm), dicofol (LC50 = 27.8 ppm, LC99 = 118.1 ppm), fenthion (LC50 = 15.4 ppm, LC99 = 29.7 ppm), and malathion (LC50 = 84.7 ppm, LC99 = 313.9 ppm). Dieldrin was the most toxic. Dicofol was recommended for further evaluation in field trials.
authors.affiliation: Division of Acarology, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia.
authors.forename: T M
authors.initials: TM
authors.lastname: Ho
authors.forename: M K
authors.initials: MK
authors.lastname: Fauziah
authors.forename: I
authors.initials: I
authors.lastname: Saleh
mesh_terms: D000818:Animals; D001561:Benzilates; D004010:Dicofol; D004026:Dieldrin; D005069:Evaluation Studies as Topic; D005284:Fenthion; D007300:Insect Control / Q000379:methods* / Q000592:standards; D007303:Insect Vectors; D007306:Insecticides; D007928:Lethal Dose 50; D008294:Malathion; D008296:Malaysia; D012612:Scrub Typhus / Q000635:transmission; D014324:Trombiculidae
chemical_list: D001561:Benzilates; D007306:Insecticides; C038267:isopropyl 4,4'-dibromobenzilate; D005284:Fenthion; D004026:Dieldrin; D008294:Malathion; D004010:Dicofol