Molluscicidal Activity of Some Solanum Species Extracts against the Snail Biomphalaria alexandrina

Table 2

LC50 and LC90 for solvent extracts of leaves of S. nigrum, S. villosum, and S. sinaicum against B. alexandrina after 24 hours at room temperature.

	Activity (mg/liter) 24 hours
Type of solvent	S. nigrum		S. Villosum		S. sinaicum
	LC50	LC90	LC50	LC90	LC50	LC90
Pet. Ether	4.2	8.62	6.33	11.02	5.8	9.94
Chloroform	70.75	142.7	90.0	175.7	82.5	164.7
Acetone	6.55	11.7	9.67	12.9	8.7	11.2
Methanol	6.9	16.2	8.4	18.3	7.8	17.5
Ethanol	2.98	5.95	4.88	8.95	3.19	6.04