Study summary
Activity of the plant-based repellent TT-4302 against the ticks Amblyomma americanum, Dermacentor variabilis, Ixodes scapularis and Rhipicephalus sanguineus
Bissinger BW, Apperson CS, Watson DW, Arellano C, Sonenshine DE, Roe RM
- Study type
- Lab
- Year
- 2014
- Published in
- Experimental and Applied Acarology 62(1):105–113
- Evidence strength
- Limited evidence
Summary
Two-choice laboratory bioassays of a 5% geraniol formulation against four medically important tick species, compared to 15% DEET.
Key findings
100% repellency at 2.5 and 3.5 h for all species except Ixodes scapularis (95.8% at 3.5 h), matching or exceeding 15% DEET — establishing geraniol's tick-repellent breadth.
Limitations
Laboratory substrate bioassay, not human-skin protection time; manufacturer-linked formulation.