Tick dragging
Tick dragging is a method for collecting ticks used by parasitologists and other researchers studying tick populations in the wild.
Contents
Method
To conduct a tick drag, a researcher uses a 1-square-metre (11 sq ft) strip of white cloth, usually corduroy, mounted on a pole that is tied to a length of rope. The researcher drags the cloth behind him or her through terrain that is suspected of harboring ticks, working in a grid-like pattern. He or she may also "flag" low-lying bushes and other vegetation by waving the cloth over them.[1]
Tick dragging is one of several methods of harvesting wild ticks for study in the lab. In at least one trial, the tick dragging method proved more successful than more technologically innovative techniques, such as live-baited traps and CO2-baited traps.[2]
The dragging method is a useful way to collect ticks from a large area; CO2 trapping is another method for localized sampling of ticks. Different species of tick also have variable sensitivity or responsiveness to this form of trapping, so its effectiveness can vary with the species of tick the researcher is interested in sampling.[3]
History
The practice of dragging a large white cloth across suspected tick-infested terrain is described in biological field guides from the early 20th century.[4] More sophisticated methods have been developed, but the dragging method continues to be practiced by researchers today.[5]
See also
References
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