Mosquito larvicidal, pupicidal and ovidical effects of the different extracts of the leaves of Peltophorum pterocarpum against Aedes aegypti and Culex quinquefasciatus

Future Journal of Pharmaceutical Sciences

Table 1 Lethal concentration (in ppm) of crude extracts of leaves of P. pterocarpum against the third-instar larvae of Ae. aegypti and Cx. quinquefasciatus

Mosquito species	Name of the extract	LC₅₀ (ppm)	95% confidence limit		LC₉₀ (ppm)	95% confidence limit		Slope ± SE	Intercept ± SE	χ²
Mosquito species	Name of the extract	LC₅₀ (ppm)	LL	UL	LC₉₀ (ppm)	LL	UL	Slope ± SE	Intercept ± SE	χ²
Ae. aegypti larvae	n-Hexane	219.14	185.33	263.69	1120.27	777.99	1959.29	1.8 ± 0.2	0.7 ± 0.4	2.5*
	Chloroform	170.74	137.4	211.18	684.06	480.71	1234.94	0.2 ± 0.6	0.4 ± 0.3	0.5*
	Methanol	111.77	90.82	133.12	330.71	260.71	475.23	2.2 ± 0.6	0.6 ± 0.3	0.1*
Cx. quinquefasciatus larvae	n-Hexane	203.48	174.41	239.54	892.65	656.24	1404.43	1.9 ± 0.2	0.3 ± 0.4	0.6*
	Chloroform	169.18	145.58	196.12	680.86	522.67	994.45	2.1 ± 0.2	0.2 ± 0.4	0.2*
	Methanol	158.93	125.47	198.42	699.71	480.42	1338.64	0.6 ± 0.6	0.2 ± 0.2	0.1*

LC₅₀ lethal concentration that kills 50% of the exposed larvae, LC₉₀ lethal concentration that kills 90% of the exposed larvae, LL lower limit (95% confidence limit), UL upper limit (95% confidence limit)
*p ≤ 0.05, level of significance of chi-square values