Repellent Activities of Essential Oils of Some Plants Used Traditionally to Control the Brown Ear Tick, Rhipicephalus appendiculatus

Table 3

Mean percent repellence (±SE) of N,N-diethyl-3-methylbenzamide (DEET) evaluated in a dual-choice assay against newly emerged adult ticks, Rhipicephalus appendiculatus, at the International Centre of Insect Physiology and Ecology, Nairobi, Kenya, under the same laboratory conditions as the current studies.

Repellent dose (mg)	Repellency (%)
0.0998	84.0±3.9
0.00998	82.8±3.6
0.000998	75.6±4.5
0.0000998	70.5±3.6

Sources: Ndung’u et al. [35], 1995; Lwande et al. [37], 1998; Ndung’u et al. [27], 1999.