In Vitro Acaricidal Activity of Selected Medicinal Plants Traditionally Used against Ticks in Eastern Ethiopia

Table 7

In vitro tick killing effect of methanolic extract of Croton macrostachyus against Rh. pulchellus.

Extract concentration (mg/ml)	Mean number of ticks dead () at minute/hour post exposure
	30 min	1 hr	2 hr	3 hr	6 hr	12 hr	24 hr
100	^a	^a	^b	^ab	^ab	^ab	^a
50	^a	^a	^a	^ab	^b	^ab	^a
25	^a	^a	^a	^ab	^b	^ab	^a
12.5	^a	^a	^a	^a	^ab	^b	^a
6.25	^a	^a	^a	^a	^a	^b	^a
0.1% diazinon	^a	^a	^a	^b	^ab	^ab	^a
Distilled water	^a	^a	^a	^a	^a	^a	^a

Means followed by the same letter on the same column are not significantly different by ANOVA ().