Acaricidal activity of ethanolic extract from aerial parts of Tagetes patula L. (Asteraceae) against larvae and engorged adult females of Rhipicephalus sanguineus (Latreille, 1806)

Table 4 Larval mortality rate of Rhipicephalus sanguineus front dilutions of 70% ethanolic extract of Tagetes patula

Samples	Number of living larvae	Number of death larvae	(%) Mortality¹
Distilled Water	145.33^a	17.00^a	10.48^a
Distilled Water	(± 24.110)	(± 2.645)	(± 0.342)
AP_EtOH70%	35.66^b	107.66^b	72.26^b
(12.5 mg/mL)	(± 6.429)	(± 16.072)	(± 0.628)
AP_EtOH70%	46.33^b	134.00^b	71.35^b
(25.0 mg/mL)	(± 8.020)	(± 19.697)	(± 1.344)
AP_EtOH70%	0.33^c	178.33^c	99.78^c
(50.0 mg/mL)	(± 0.577)	(± 17.897)	(± 0.367)
AP_EtOH70%	0.33^c	108.666^b	99.72^c
(100.0 mg/mL)	(± 0.577)	(± 27.006)	(± 0.472)

¹ The mortality rate was calculated using Abbott's formula, due to the mortality rate in the control group was close to 10.0%. Values with the same superscript letters within a column do not show statistically significant differences by Sheffé, Tukey-Kramer and Neuman-Keuls tests (p < 0.05). The values are the mean of three assays, ± the standard deviation.

ISSN: 1756-3305