Toxicity Assessment of Buprofezin, Lufenuron, and Triflumuron to the Earthworm Aporrectodea caliginosa

Table 5

In vivo effect of different application rates of buprofezin, triflumuron, and lufenuron on GST activity in earthworm after 2, 4, weeks of treatment.

Pesticide	Concentration; (mg a.i/kg soil)	Specific activity ± SE (OD340⋅min^−1⋅mg protein^−1)		I50 with 95% confidence limits (mg a.i/kg soil)
		2 weeks	4 weeks	2 weeks	4 weeks
	0 (Control)	6.19^a±0.38	8.38^a±0.07
Buprofezin	50	3.75^c±0.21	4.36^c±0.08	105.22 (72.82–136.45)	60.77 (27.25–86.43)
	100	3.17^cde±0.17	3.57^d±0.15
	150	2.89^def±0.05	3.18^def±0.05
	200	2.58^efg±0.17	2.77^ef±0.15
	300	1.79^h±0.26	2.10^g±0.18
Triflumuron	50	5.13^b±0.31	5.26^b±0.19	155.28 (132.04–185.630	86.27 (55.34–112.22)
	100	3.59^cd±0.38	3.63^d±0.14
	150	2.86^def±0.14	3.24^de±0.27
	200	2.60^efg±0.14	2.95^ef±0.26
	300	2.30^fgh±0.33	2.66^f±0.08
Lufenuron	0.5	4.84^b±0.25	4.12^c±0.31	3.65 (1.15–11.40)	0.36 (0.15–0.64)
	1	3.50^cd±0.13	2.85^ef±0.15
	5	2.70^efg±0.04	1.65^gh±0.20
	10	2.46^efgh±0.06	1.45^h±0.28
	25	1.96^gh±0.31	0.78^i±0.06

Results are expressed as mean ± standard error (𝑛=3). Values followed by the same letter within a column are not significantly different (𝑃≤0.05) according to Duncan's test.