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

Applied Biological Chemistry

Table 5 Toxicity of W. somnifera alkaloid fraction and isolated compounds on T. urticae after 3 days 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	467.79	356.03	586.11	1784.56	1195.73	4327.56	2.20 ± 0.46	27.42
Withasomine 1	128.29	104.86	154.36	370.47	273.93	659.20	2.78 ± 0.49	100
Isoferulate 2	266.69	222.77	315.88	691.05	529.22	1123.24	3.10 ± 0.52	48.10
Sominone A 3	606.02	487.11	732.91	1836.41	1345.69	3352.52	2.66 ± 0.48	21.17
Coagulin Q 4	641.48	522.85	774.01	1883.55	1383.57	3412.49	2.74 ± 0.49	20.00
Azadirachtin (Okios 3.2% EC)	749.85	392.26	3765.36	21,305.20	4069.86	85,416.21	0.88 ± 0.26	17.11