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

Applied Biological Chemistry

Table 3 Toxicity of W. somnifera alkaloid fraction and isolated compounds on B. tabaci 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	47.19	35.82	60.83	189.62	131.93	343.36	2.12 ± 0.31	77.58
Withasomine 1	36.61	26.06	50.61	228.80	135.37	612.10	1.61 ± 0.28	100
Isoferulate 2	69.93	57.93	84.36	197.02	144.78	356.76	2.85 ± 0.51	52.35
Sominone A 3	193..83	161.06	229.71	508.75	389.73	825.57	3.06 ± 0.51	18.89
Coagulin Q 4	199.67	164.14	240.54	572.14	421.52	1028.16	2.80 ± 0.50	18.34
Azadirachtin (Okios 3.2% EC)	36.78	27.22	49.93	184.33	118.04	401.99	1.83 ± 0.29	99.54