Insecticidal composition containing chlorfenapyr and spinosad

The invention relates to the field of pesticides, and particularly discloses an insecticidal composition containing chlorfenapyr and spinosad, the insecticidal composition comprises the following raw materials by weight: 45-240 parts of spinosad microspheres; 60 to 250 parts of chlorfenapyr; 44-72 parts of a wetting dispersant; 8.5 to 15.5 parts of a thickening agent; 20-60 parts of an anti-freezing agent; and 585.5 to 717 parts of water. The spinosad microsphere preparation method comprises the following steps: preparing a spinosad acetone solution, uniformly stirring and mixing a loading agent and the spinosad acetone solution, removing acetone after stabilization, centrifuging to obtain a lower-layer precipitate, and washing and drying to obtain the spinosad microsphere. The preparation method of the loading agent comprises the following steps: dispersing carboxymethyl chitosan, polycaprolactone and dimethyl sulfoxide in a vacuum state, adding triethylamine under the protection of nitrogen, heating to 80 D