Molluscicidal activities of Tetraplura tetraptera at different exposure time.

Table 1: Molluscicidal activities of Tetraplura tetraptera at different exposure time.

Exposure time (hrs)
Treatment(mg/l)	8	16	24	32	40	48
Control	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a
0.4	0.00 ± 0.00^a	0.00 ± 0.00^a	20.00 ± 0.00^b	20.00 ± 0.00^b	40.00 ± 0.29^b	60.00 ± 0.25^b
0.8	10.00 ± 0.00^b	20.00 ± 0.29^b	40.00 ± 0.29^c	40.00 ± 0.29^c	60.00 ± 0.25^c	80.00 ± 0.00^c
1.2	20.00 ± 0.29^b	40.00 ± 0.25^c	40.00 ± 0.29^c	60.00 ± 0.25^d	80.00 ± 0.41^d	100.00 ± 0.25^d
1.6	40.00 ± 0.29^c	60.00 ± 0.25^d	80.00 ± 0.00^d	80.00 ± 0.25^e	80.00 ± 0.29^d	100.00 ± 0.00^d
2.0	60.00 ± 0.00^d	60.00 ± 0.25^d	80.00 ± 0.00^d	80.00 ± 0.25^e	100.00 ± 0.25^e	100.00 ± 0.00^d

Each value is a mean ± standard error of four replicate. Means followed by the same letter along the column are significantly different (P < 0.05) using Duncan's New Multiple Range Test.