Table 1. Mortality of B. glabrata adults exposed to methanolic extracts of different organs of Piper tuberculatum.

P. tuberculatum organ	Concentration (µg/ml)								LC50 (µg/ml) [confidence interval]
	800	400	200	100	50	25	12.5	6.25
Root	30	30	30	30	30	16	8	2	20.28 [16.65–24.69]
Stem	30	24	9	5	4	1	2	0	200.00 [161.37–247.87]
Leaf	30	21	4	3	1	3	2	2	310.27 [258.87–371.89]
Fruit	30	24	18	15	7	1	3	2	126.27 [97.08–164.25]

n = 30 adult snails.

Values were obtained at the end of the 7^th day of observation.