Table 2.

LC₅₀ and LC₉₀ values (with 95% confidence limits in parentheses) of seed oils under laboratory conditions after 24, 48, and 72 h of exposure against early 4th-instar field-collected An. gambiae s.l. larvae.

Plant oil	LC	Exposure hours
		24 h	48 h	72 h
A. indica	50	1.60 (0.40–2.04)	1.07 (0.17–1.53)	1.04 (0.33–1.44)
	90	0.82 (0.02–1.33)	0.37 (0.00–0.801)	0.36 (0.02–0.72)
	p value	0.01	0.01	0.01
S. molle	50	1.75 (0.35–2.23)	1.54 (0.84–1.95)	1.17 (0.04–1.71)
	90	0.90 (0.00–1.44)	0.72 (0.12–1.12)	0.37 (0.00–0 0.85)
	p value	0.01	0.01	0.01
A. indica and S. molle	50	2.00 (0.20–2.66)	1.55 (0.91–1.95)	1.14 (0.10–1.65)
	90	1.02 (0.00–1.60)	0.76 (0.18–1.15)	0.37 (0.00–0.82)
	p value	0.03	0.03	0.03

Abbreviation: LC, lethal concentration.