Table 9 Log probit and regression analysis of time dependent larvicidal efficacy of methanolic extract of B. pilosa at different concentrations against third instar larvae of C. quinquefasciatus
Plant name | Concentration | Chi Square | LT50 (h) | 95% confidence limits | df | R 2 Value | Slope ± SE | Intercept ± SE | F value | P value | |
|---|---|---|---|---|---|---|---|---|---|---|---|
Lower limit | Upper limit | ||||||||||
Methanolic extract of Bidens pilosa | 50 | 2.8 | 28.32 | 26.74 | 29.98 | 8 | 0.96 | 1.488 ± 0.097 | −8.47 ± 2.64 | 232.9 | 0.0001 |
100 | 0.8 | 25.36 | 23.09 | 27.86 | 8 | 0.99 | 1.788 ± 0.057 | −5.734 ± 1.566 | 959.1 | 0.0001 | |
200 | 0.8 | 19.17 | 16.74 | 21.95 | 8 | 0.98 | 2.087 ± 0.083 | 0.76 ± 2.25 | 628.8 | 0.0001 | |
300 | 0.8 | 18.85 | 15.67 | 22.67 | 8 | 0.98 | 2.212 ± 0.101 | 3.196 ± 2.76 | 471.3 | 0.0001 | |
400 | 5.4 | 10.17 | 8.34 | 12.4 | 4 | 0.86 | 1.815 ± 0.258 | 30.91 ± 7.0 | 49.45 | 0.0001 | |
500 | 10.0 | 4.692 | 4.28 | 5.14 | 7 | 0.99 | 1.262 ± 0.367 | 55.43 ± 9.95 | 11.8 | 0.008 | |