In Vitro Acaricidal Activity of Atropa belladonna and Its Components, Scopolamine and Atropine, against Rhipicephalus (Boophilus) microplus

Table 1

Tick weight, percent mortality, egg weight, reproductive index (RI), and inhibition of oviposition (IO) of R. (B.) microplus adults exposed to different concentrations of methanolic extract of Atropa belladonna and its constituents, scopolamine and atropine.

Conc. (%)	Number of Ticks	Live tick wt (mg); (mean ± SE)	Mortality (%); (mean ± SE)	Egg wt (mg); (mean ± SE)	RI; (mean ± SE)	IO (%)
Control	30	104.0 ± 6.4	0.0 ± 0.0^a	55.6 ± 3.7	0.53 ± 0.01^a	—
1.25	30	104.7 ± 3.6	0.0 ± 0.0^a	52.9 ± 3.9	0.50 ± 0.03^a	5.8 ± 4.3^a
2.5	30	117.3 ± 11.1	3.3 ± 3.3^a	54.6 ± 6.7	0.46 ± 0.03^b	14.5 ± 5.1^a
5.0	30	109.6 ± 4.6	6.7 ± 3.3^a	43.3 ± 4.7	0.39 ± 0.04^b	26.4 ± 6.2^a
10.0	30	108.1 ± 4.8	36.7 ± 8.8^b	29.8 ± 2.7	0.30 ± 0.03^c	44.2 ± 5.7^b
20.0	30	103.2 ± 4.2	100.0 ± 0.0^c	0.0 ± 0.0	0.0 ± 0.0^d	100.0 ± 0.0^c
Scopolamine (0.1%)	30	115.0 ± 7.5	93.3 ± 6.7^c	32.3 ± 4.8	0.21 ± 0.03^d	60.9 ± 5.0^c
Atropine (0.1%)	30	130.7 ± 6.2	60.0 ± 11.5^d	55.8 ± 5.7	0.25 ± 0.04^e	54.1 ± 7.7^d

Mean followed by the same letters in the same column does not differ statistically at a significance level of 5%.