The invention belongs to the technical field of ampullaria gigas, and particularly relates to an adult ampullaria gigas
trapping device suitable for paddy fields. The adult ampullaria gigas
trapping device comprises a bottom plate, wherein an arc-shaped connecting plate is arranged around the surface of the bottom plate, one end of the arc-shaped connecting plate is connected with a
trapping shell, the surface of the bottom of the trapping shell is connected with a trapping and killing
barrel, a trapping shell inlet is formed in the inner wall of the trapping shell, and the position of the trapping shell inlet is located over the arc-shaped connecting plate. By means of a rotating rod, an L-shaped rotating rod, a temporary standing disc and a salt storage shell, the ampullaria gigas falls into
salt water in the trapping and killing
barrel, water in the ampullaria gigas can permeate from the body with
low salt content to the position with high
salt content outside the body, the
salt water enables the ampullaria gigas to lose water to die through
dehydration, due to the fact that the density of the water is smaller than that of the
salt water, the water in the ampullaria gigas is not prone to being fused with the salt water, water can be located on the salt water, when the ampullaria gigas is trapped into the trapping and killing
barrel, the water can overflow from an overflow cavity when the
water level line exceeds the water outlet, and
nutrient substances in the water can feed the rice back.