Bioactive compounds from Withania somnifera dun and their toxicity against some piercing sucking pests

Applied Biological Chemistry

Table 2 Toxicity of W. somnifera alkaloid fraction and isolated compounds on A. craccivora after 24 h under laboratory conditions

Treatment	LC₅₀ (ppm)	Confidence limit 95% (ppm)		LC₉₀ (ppm)	Confidence limit 95% (ppm)		Slope ± S.E	Toxicity index (%)at LC₅₀ value
Treatment	LC₅₀ (ppm)	Lower	Upper	LC₉₀ (ppm)	Lower	Upper	Slope ± S.E	Toxicity index (%)at LC₅₀ value
Alkaloid fraction	28.97	20.35	39.15	164.32	103.61	378.01	1.70 ± 0.29	53.30
Withasomine 1	15.44	11.12	20.67	81.48	52.26	178.69	1.77 ± 0.29	100
Isoferulate 2	55.80	47.42	65.92	140.34	108.30	219.81	3.20 ± 0.49	28.67
Sominone A 3	137.15	111.43	168.51	431.17	303.87	878.62	2.58 ± 0.49	11.26
Coagulin Q 4	130.55	107.61	156.25	362.87	271.52	625.54	2.89 ± 0.50	11.83
Azadirachtin (Okios 3.2% EC)	27.40	17.56	45.64	178.28	83.30	2003.89	1.58 ± 0.44	56.35