Table 3. LC₅₀ and LC₉₅ values of S. guianensis essential oils against different developmental stages of A. aegypti and C. quinquefasciatus.

Insect	Stage	Slope ±SEM	LC50 (µg/mL)	FI (LC50)	LC95 (µg/mL)	FI (LC95)	χ2	P
A. aegypti	1 instar	0.81±0.04	0.21d	0.12–0.32	0.45d	0.36–0.51	4.78	0.49
	2 instar	0.84±0.03	0.55b	0.41–0.75	0.80c	0.67–0.88	3.24	0.05
	3 instar	0.94±0.06	0.75b	0.51–0.92	0.85c	0.71–0.94	4.24	0.02
	4 instar	0.94±0.02	0.91b	0.73–1.02	1.48b	0.96–1.82	2.21	0.11
	Pupae	0.60±0.07	1.69a	1.30–1.90	2.15a	1.88–2.51	4.15	0.11
	Adult	0.70±0.11	0.38c	0.33–0.48	0.65c	0.55–0.91	4.02	0.21
C. quinquefasciatus	1 instar	0,49 ± 0.05	0.31e	0.22–0.36	0.56d	0.47–0.59	2.78	0.29
	2 instar	0.62 ± 0.07	0.42d	0.39–0.46	0.75c	0.62–0.82	2.24	0.15
	3 instar	0.75 ± 0.05	0.59c	0.55–0.62	0.85c	0.71–0.94	4.65	0.12
	4 instar	0.60 ± 0.10	0.78b	0.67–0.82	0.99b	0.96–1.12	2.78	0.11
	Pupae	1.14 ± 0.18	1.31a	1.10–1.50	2.22a	1.98–2.51	3.17	0.08
	Adult	1.04 ± 0.12	0.39d	0.37–0.46	0.60d	0.50–0.81	4.21	0.19

SEM = standard error of the mean; LC = lethal concentration (µL/mL); FI = fiducial interval at 95% of probability; χ² = Chi squared. Means followed by different letters are significantly different (P<0.05). Analysis of variance followed by Tukey’s test.