Evaluation of Hexane Extract of Tuber of Root of Cyperus rotundus Linn (Cyperaceae) for Repellency against Mosquito Vectors

Table 1

Percent repellency of hexane extract of tuber of root of Cyperus rotundus Linn against three important mosquito vectors.

Species Replicate	Doses %	Repellency in hours
		0 hour	1 hour	2 hours	4 hours	6 hours
An. culicifacies (3)	Tre- 2.5	80	75	88	90	95
	Tre- 5	88	90	90	96	99.2
	Tre- 10	97	96	97	100	100
	Deet 2.5	98	100	100	99	100
An. stephensi (3)	Tre- 2.5	84	80	85.3	90	96
	Tre- 5	89	88.7	92.0	95	99
	Tre- 10	99.6	93.0	93.0	99	100
	Deet 2.5	96.7	100	90	99	100
Cx. Quinquefasciatus (3)	Tre- 2.5	83.5	75	82.3	91.7	95.8
	Tre- 5	89.2	89.7	93	95	99
	Tre- 10	89.6	96	95.5	99	100
	Deet 2.5	96.6	100	100	96.7	100

R- no of ReplicateN- no of mosquito