Disease relevance of Trombiculidae

• Beginning three days before exposure to Leptotrombidium fletcheri chiggers infected with Rickettsia tsutsugamushi, and continuing for six weeks after exposure, one group received weekly 200-mg oral doses of doxycycline and the other group received a placebo [1].
• Toxicities of three pyrethroids, d-phenothrin, decamethrin, and permethrin, were evaluated in the laboratory against Leptotrombidium fletcheri (Womersley & Heaslip) [2].

High impact information on Trombiculidae

• Kawasaki- and Karp-type rickettsiae were isolated from L. scutellare and L. pallidum, respectively, and the geographic distribution of patients and rodents infected with these two types of rickettsiae coincided with the areas densely populated by the respective chiggers [3].
• A study was done to evaluate the personal protection afforded by uniforms treated with permethrin (0.125 mg/cm2) against natural infestations of chigger mites, Trombicula spp [4].
• Two hundred and fifty-three of 335 A. agrarius were parasitized by chiggers, showing 75.52% (253/335) of the infestation rate and 17.53 of the chigger index; 106 C. triton were parasitized by chiggers, showing 89.08% (106/119) infestation rate and 75.93 of the chigger index [5].
• Treatment of Trombicula autumnalis infestation in dogs and cats with a 0.25 per cent fipronil pump spray [6].
• Occurrence of high ratio of males after introduction of minocycline in a colony of Leptotrombidium fletcheri infected with Orientia tsutsugamushi [7].

Associations of Trombiculidae with chemical compounds

• All chiggers exposed on filter papers treated with DEET died and did not move off the treated papers [8].
• ULV sprays of propoxur for control of Trombicula alfreddugesi [9].
• A new species of Toritrombicula (Acarnia: Trombiculidae) from the Pacific Golden Plover in the Hawaiian Islands [10].
• Laboratory tests of dimethoate for systemic control of chigger (Acarina: trombiculidae) population on rodents [11].
• Laboratory evaluation of propoxur and fenvalerate against infected and noninfected Leptotrombidium fletcheri (Acari: Trombiculidae) [12].

Gene context of Trombiculidae

• A new species of Gahrliepia (Acari: Trombiculidae) from a Shrew-hedgehog (Insectivora) in China [13].

References