The In Vitro Effects of Aqueous and Ethanolic Extracts of the Leaves of Ageratum conyzoides (Asteraceae) on Three Life Cycle Stages of the Parasitic Nematode Heligmosomoides bakeri (Nematoda: Heligmosomatidae)

Table 2

Mean mortality rate of Heligmosomoides bakeri L₁ and L₂ larvae incubated in increasing concentrations (mg·mL⁻¹) of aqueous and ethanolic extracts of Ageratum conyzoides compared to Mebendazole.

Larval stages	Treatment	Negative controls		Tested concentrations (mg·mL^−1)
		Distilled water	5% tween	0.625	1.25	2.5	3.75
L1 larvae	Aqueous extract	3.5 ± 5.0	NA	6.0 ± 5.1	8.1 ± 1.0	32.3 ± 12.4	55.0 ± 22.3
	Ethanolic extract	NA	3.0 ± 4.8	6.7 ± 4.5	60.7 ± 6.8	96.3 ± 4.8	99.4 ± 1.2
	Mebendazole	3.5 ± 5.0	NA	33.8 ± 21.1	32.2 ± 12.4	89.4 ± 7.4	84.4 ± 3.8
L2 larvae	Aqueous extract	3.5 ± 5.0	NA	32.6 ± 20.34	40.8 ± 15.0	50.1 ± 13.1	58.2 ± 20.0
	Ethanolic extract	NA	3.0 ± 4.8	13.6 ± 7.0	32.5 ± 4.2	35.4 ± 29.0	95.5 ± 5.2
	Mebendazole	3.5 ± 5.0	NA	77.0 ± 3.5	86.7 ± 5.2	96.0 ± 0.8	100.0 ± 0.0

NA: not applicable.