A kind of pesticide composition containing tea saponin and its preparation method and application

[0018] The present embodiment prepares the suspending agent according to the following percentage by weight ratio, tea seed powder 30-32%, berberine 0.5-0.52%, enzyme inhibitor 1.2-1.5% and the water of surplus; The specific method is: the first step, select Tea seeds with water content ≤ 3%, impurity rate ≤ 3%, berberine content 99% and enzyme inhibitor content 99%;

[0019] The second step is to crush the tea seeds together with the shells to make tea seed powder with a fineness of 170 mesh, and place them in moisture-proof and anti-fouling conditions;

[0020] The third step is to mix the tea seed powder and water according to the ratio of 1:3, stir and soak at a water temperature of 40°C-45°C for 7 hours, then add berberine and enzyme inhibitor to the obtained liquid containing tea saponin Stir for 10 minutes to obtain a coarse suspension, wherein a 10-ton stainless steel self-control stirring tank is used for stirring, the water temperature in the tank is 40°C-42°C, the s...