Table 4.
Lethal concentrations (ppm) of four hexane plant extracts on Aedes aegypti larval mortality, 24 and 48 h post-treatment.
| Time (h) | Treatment | LC50 (Low-Up.) | LC90 (Low-Up.) | LC95 (Low-Up.) | Slope ± SE | X2 (sign.) |
|---|---|---|---|---|---|---|
| 24 | D. stramonium |
219.76 (150.32–305.11) |
834.43 (630.61–1478.79) |
1218.01 (919.20–2382.87) |
2.211 ± 0.150 | 12.868 (0.011) |
| C. annuum |
294.17 (252.21–342.08) |
1419.14 (1110.77–1949.04) |
2216.96 (1650.37–3270.43) |
1.875 ± 0.146 | 7.679 (0.104) | |
| N. tabacum |
176.97 (127.51–234.33) |
605.36 (464.98–969.85) |
857.88 (651.89–1493.18) |
2.399 ± 0.165 | 10.236 (0.036) | |
| W. somnifera |
316.45 (212.04–459.22) |
1196.42 (911.74–2338.92) |
1744.27 (1241.44–3813.28) |
2.218 ± 0.149 |
15.754 (0.003) |
|
| 48 | D. stramonium |
160.70 (140.88–181.78) |
507.76 (431.69–619.23) |
703.55 (580.87–894.75) |
2.565 ± 0.180 | 9.069 (0.059) |
| C. annuum |
182.77 (160.65–206.46) |
582.36 (495.03–709.87) |
808.84 (667.82–1027) |
2.546 ± 0.174 | 8.996 (0.061) | |
| N. tabacum |
141.26 (123.92–159.58) |
423.37 (361.17–514.78) |
577.90 (579.08–732.50) |
2.688 ± 0.185 | 6.301 (0.177) | |
| W. somnifera |
201.87 (142.29–273.83) |
647.28 (498.66–1080.36) |
900.61 (693.96–1634.55) |
2.532 ± 0.171 | 12.829 (0.012) |