A New Method to Test Molluscicides against the Philippine Schistosomiasis Snail Vectors

Table 5

Lethal dose ratios with their 95% confidence limits for niclosamide and tagpo extract using conventional (cpt) and miniaturized (mpt) plate tests against Oncomelania hupensis quadrasi snails.

Lethal ratio	Niclosamide		Tagpo extract
	LC50	LC90	LC50	LC90
cpt/mpt 1	0.820 (0.663, 0.977)^∗	0.991 (0.632, 1.351)	0.948 (0.848, 1.048)	0.997 (0.818, 1.177)
mpt 1/mpt 2	0.939 (0.793, 1.084)	1.101 (0.787, 1.416)	0.932 (0.833, 1.031)	0.877 (0.707, 1.048)
mpt 1/mpt 3	0.916 (0.774, 1.057)	1.068 (0.758, 1.377)	0.861 (0.782, 0.939)^∗	0.931 (0.787, 1.074)
mpt 1/mpt 4	0.912 (0.769, 1.056)	1.026 (0.719, 1.333)	0.932 (0.833, 1.031)	0.877 (0.707, 1.048)
mpt 2/mpt 3	0.976 (0.841, 1.110)	0.969 (0.729, 1.209)	0.923 (0.837, 1.010)	1.061 (0.867, 1.254)
mpt 2/mpt 4	0.972 (0.835, 1.109)	0.931 (0.690, 1.172)	1.000 (0.892, 1.108)	1.000 (0.783, 1.217)
mpt 3/mpt 4	0.996 (0.857, 1.136)	0.961 (0.708, 1.213)	1.083 (0.982, 1.184)	0.943 (0.771, 1.115)

^∗Difference is interpreted as significant.