[Technology of preventing oncomelania snail diffusion in east route of South-to-North Water Diversion Project II. Effect of sand buried and reed protection on snail control in area of water source].

Objective: To evaluate the effect of sand buried and reed protection on Oncomelania snail control in the area of water source of the east route of South-to-North Water Diversion Project.

Methods: The Oncomelania snail eggs were counted after the snails raised seven days in the sand of different contents in the spawning period. The survival of the snails was observed when the snails were raised on the sand surface in the laboratory.