Psyche: A Journal of Entomology

Research Article

Larvicidal Activities and Synergistic Effects of Essential Oils against Anopheles funestus and Culex quinquefasciatus (Diptera: Culicidae) from Kisumu, Kenya

Table 7

The 50% and 90% lethal concentrations (LC₅₀ and LC₉₀, respectively), their 95% confidence intervals, and regression parameters of the larvicidal activity of essential oil mixture against Anopheles funestus 24 h post treatment.


Plants	LC₅₀ (ppm)	LLC-ULC	LC₉₀ (ppm)	LLC-ULC	Chi²(Wald)	-value

LM + LCa	79.22	(30.24–90.62)	144.65	(128.25–179.46)	23.17
LM + CS	44.05	(34.87–51.66)	86.92	(79.59–95.48)	121.04
LM + LCh.	92.93	(85.20–102.66)	146.22	(129.13–180.46)	30.88
LCh + CS	140.75	(121.22–193.51)	216.11	(173.47–352.48	13.41
LCh + LCa	127.90	(106.77–159.01)	206.02	(171.51–271.99)	31.76
CS + LCa	100.92	(78.28–147.32)	156.59	(119.63–231.38)	0.00

LC: lethal concentration; LCL: lower confidence limit; UCL: upper confidence limit; ppm: parts per million; LM: Lippia multiflora; LCh: Lippia chevalieri; LCa: Lantana camara; CS: Cymbopogon schoenanthus.