Development of an In Vitro Method for the Evaluation of Candidate Repellents Against Leptotrombidium (Acari: Trombiculidae) Chiggers. Issue 1 (6th October 2014)

• Record Type: Journal Article
• Authors: Lerdthusnee, Kriangkrai; Khlaimanee, Nittaya; Monkanna, Taweesak; Mungviriya, Siriporn; Leepitakrat, Warisa; Debboun, Mustapha; Coleman, Russell E.
• Is Part Of: Journal of medical entomology. Volume 40:Issue 1(2003)
• Page Start: 64
• Page End: 67
• Publication Date: 2014-10-06
• Subjects: Leptotrombidium -- chiggers -- scrub typhus -- repellents -- personal protection; Insects as carriers of disease -- Periodicals; 616.968
• DOI: 10.1603/0022-2585-40.1.64
• Languages: English
• ISSNs: 0022-2585

Abstract

Abstract : We developed a rapid and economical in vitro procedure with which to evaluate the efficacy of candidate repellents against chiggers. The procedure requires only 5 min and a small number of chiggers to obtain a valid estimate of the median effective dose. We used this procedure to evaluate the repellent activity of 11 compounds against the chigger, Leptotrombidium imphalum Vercammen-Grandjean and Langston. Median effective doses were determined for 10 of the 11 compounds. DM-165-2 (N, N-diethyl-3-flurobenzamide) was the only compound that was significantly more effective than deet.