Acaricidal Activity of Petroleum Ether Extract of Leaves of Tetrastigma leucostaphylum (Dennst.) Alston against Rhipicephalus (Boophilus) annulatus

Table 1

Effect of petroleum ether extract of leaves of T. leucostaphylum (PEELTL) against R. (B.) annulatus.

Sl. number	Acaricide	Mean tick weight per replicate ± SEM (g)	Mean % adult mortality within 15 days ± SEM	Mean eggs mass per replicate ± SEM (g)	Index of fecundity ± SEM	Inhibition of fecundity (%)	Hatching (Visual %)
1	Unrefined coconut oil	1.347 ± 0.017^ab	0 ± 0^a	0.575 ± 0.042^b	0.427 ± 0.033^a	0	100
2	PEELTL-(1.25%)	1.322 ± 0.024^a	16.660 ± 6.80^a	0.493 ± 0.034^b	0.372 ± 0.024^a	12.73	100
3	PEELTL-(2.5%)	1.342 ± 0.027^ab	16.660 ± 9.62^a	0.454 ± 0.044^b	0.337 ± 0.029^a	21.73	100
4	PEELTL-(5%)	1.341 ± 0.001^ab	24.990 ± 8.33^a	0.428 ± 0.043^b	0.319 ± 0.033^a	25.57	100
5	PEELTL-(10%)	1.320 ± 0.055^a	58.320 ± 14.43^b	0.059 ± 0.052^a	0.047 ± 0.041^a	88.97	50

= 4; values are mean ± SEM; means bearing different superscripts a or b () indicate significant difference when compared with the control and petroleum ether extract of leaves of T. leucostaphylum.