Assessment of Antitick and Repellent Activity of Azadirachta indica Oil against Adults and Larvae Stages of Rhipicephalus microplus

Table 3

Repellency indices (RI) ± standard error (SE) of the Azadirachta indica oil, after drying for 30 min and tested on adult females of R. microplus.

Particular	Concentration (%)	No. of ticks	% of ticks attracted to the treatment	% of ticks attracted to the control	Repellence index (RI ± SE)	Classification
Azadirachta indica oil	5	10	45	55	1.10 ± 0.034	Neutral
	10	10	10	90	0.20 ± 0.036	Repellent

RI < 1.0 indicated a repellent effect and RI > 1.0 indicated an attractive effect. RI = 1.0 corresponded to a neutral effect. RI ± SE = repellency index ± standard error. Based on 1.0 ± standard error for each treatment according to Girao Filho et al. (2014) and Xavier et al. (2015).