Z-Ligustilide Exerted Hormetic Effect on Growth and Detoxification Enzymes of Spodoptera litura Larvae

Table 2

LD₅₀ values for larvicidal activity of phthalides against S. Litura larvae.

Compound	(mg·g^−1)	95%CL^b (mg·g^−1)	slope±SE	R^2
Z-LIG	0.59	0.51-0.69	1.03±0.28	0.9594
senkyunolide A	0.98	0.84-1.13	0.86±0.20	0.9649
senkyunolide I	2.39	2.04-2.80	0.91±0.23	0.9611
levistilide A	0.67	0.58-0.76	0.93±0.21	0.9688
3-butylidenephthalide	1.56	1.35-1.81	0.88±1.21	0.9657

LC₅₀ is the lethal concentration for 50% mortality; 95% confidence limit.