Table 3.

Comparative percent repellency (%) of either female body (USDA) or female head lice (SF-HL) to 2,3-dimethylphenol, 4-methylcyclohexanol, or 1-phenylethanol-treated patches used in the treatment arena. In all cases except where indicated, a 250 μl aliquot of a 1% test solution was applied to the gauze test patch (~3.7 micromole/cm²). 2,3-dimethylphenol was also applied a 250 μl aliquot of a 0.01% test solution (~37 nanomoles/cm²). Nc indicates the total number of female in the control arena; nc indicates the total number of females on the ethanol-treated patch in the control arena; Nt indicates the total number of female in the treatment arena; nt indicates the total number of females on the test compound-treated patch in the treatment arena. Asterisks indicate repellency percentages that were significantly different from control (Fisher’s exact test, p < 0.05).

Treatment, body lice	Nc or Nt	nc or nt	Repellency (%)
Control	Nc = 60	nc = 28	-
2,3-dimethylphenol	Nt = 70	nt = 1	96.9*
4-methylcyclohexanol	Nt = 60	nt = 8	71.4*
1-phenylethanol	Nt = 60	nt = 16	42.9*

Treatment, head lice	Nc or Nt	nc or nt	Repellency (%)
Control	Nc = 50	nc = 26	-
2,3-dimethylphenol	Nt = 50	nt = 5	80.8*
0.01%	Nt = 30	nt = 7	55.1*
4-methylcyclohexanol	Nt = 70	nt = 8	78.0*
1-phenylethanol	Nt = 70	nt = 19	47.8*