The invention discloses a preparation process of a double-membrane microcapsule suspending agent. The preparation process comprises the following steps: preparing an
oil phase; preparing a water phase; forming an
emulsion; forming a first layer of film; forming a double-membrane microcapsule; blending a final product; the
bifenthrin and the
thiacloprid are wrapped in a unique double-
membrane structure, so that the
pesticide can be slowly released, the lasting period is long, and the
pesticide application frequency is reduced; the
pesticide composition has the advantages of increasing the attachment and deposition of the pesticide, improving the
transmission performance of the pesticide to a target, reducing the droplet bounce, improving the
utilization rate of the pesticide, reducing the influence on the environment and having important significance on the reduction and synergism of the pesticide, and can improve the
control effect and effectively help the
forestry to reduce unnecessary extra disasters for the prevention and treatment of
forestry insect pests; according to the insecticidal composition, the quality of the whole
forestry is improved while the forestry treatment cost is saved, two pesticides with different action mechanisms are compounded, the defects of a single pesticide are overcome, the
drug resistance of pests is reduced, the insecticidal range is expanded, and the insecticidal activity is higher.