The invention discloses a compounded seed
coating agent containing pyraclostrobin, thifluzamide and
dinotefuran and application, and belongs to the technical field of
pesticide. The pyraclostrobin is a
strobilurin fungicide, the thifluzamide is a thifluzamide
fungicide, the objects and the ranges of
control diseases are different, and if the pyraclostrobin and the thifluzamide are mixed and matched, the synergism effect is achieved, resistance increasing of cotton
rhizoctonia to the two fungicides can also be inhibited, and the control range of a compounded preparation is enlarged; the
dinotefuran is a third-generation chloronicotinyl insecticide, as the structure is different, the
control effect and the lasting period on pests such as cotton aphids,
plant hoppers, leafhoppers, thrips and whiteflies are better than the
control effect and the lasting period of a traditional chloronicotinyl insecticide such as
imidacloprid; the pyraclostrobin, the thifluzamide and the
dinotefuran have the
advantage of being long in lasting period and are suitable for serving as effective constituents of the seed
coating agent, cotton aphids and
damping off in the cotton seeding stage can be controlled when seeds are stirred with the compounded seed
coating agent, the aim that diseases and pests are controlled through once seed stirring is achieved, and meanwhile the
pesticide using amount and the control cost for diseases and pests in the cotton seeding stage are greatly reduced.