The invention discloses a control method of
Spodoptera frugiperda. The control method comprises the following steps: step one, eluting entomopathogenetic nematodes from
sponge blocks by using water toprepare entomopathogenetic
nematode suspension liquid, wherein the entomopathogenetic
nematode suspension liquid consists of water and entomopathogenetic nematodes; step two, uniformly applying the entomopathogenetic
nematode suspension liquid obtained in the step one to leaf surfaces of crops and / or soil of the crops; step three, infecting the larvae of
Spodoptera frugiperda on the leaf surfacesof crops and / or on the surface of soil by using entomopathogenetic nematodes, and infecting the aged larvae, prepupa and pupae of the
Spodoptera frugiperda under the soil of the crops. According to the method, Spodoptera frugiperda is used for infecting leaf surface insects and underground insects of the Spodoptera frugiperda, biological control of the Spodoptera frugiperda is carried out, the environment is not polluted,
drug resistance to the Spodoptera frugiperda is not generated, the Spodoptera frugiperda continuously proliferates in the environment,
population can be established in the environment, and a controllable and preventable state caused by continuous and stable control of pests is achieved.