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

Applied Biological Chemistry

Table 4 Toxicity of W. somnifera alkaloid fraction and isolated compounds on N. viridula 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	273.92	225.61	331.22	790.49	577.59	1453.13	2.78 ± 0.50	31.07
Withasomine 1	85.11	63.99	111.29	375.03	252.38	729.61	1.99 ± 0.30	100
Isoferulate 2	203.91	158.05	263.50	792.10	545.72	1456.76	2.17 ± 0.31	41.74
Sominone A 3	399.86	334.73	472.45	1021.10	786.31	1637.26	3.15 ± 0.52	21.28
Coagulin Q 4	440.08	366.68	532.57	1224.52	895.86	2246.73	2.88 ± 0.52	19.34
Azadirachtin (Okios 3.2% EC)	98.26	70.44	132.88	550.67	343.85	1287.89	1.71 ± 0.28	86.62