Phenylpyrazole compound and application thereof

A phenylpyrazole compound, wherein a structure of the phenylpyrazole compound is as shown in general formula I, or is a stereoisomer of the compound as shown in the general formula I, a salt of the compound as shown in the general formula I, or a salt of the stereoisomer of the compound as shown in the general formula I:

• wherein, in the general formula I:
• W1 is selected from fluorine, trifluoromethyl, or pentafluoroethyl;
• W2 is selected from fluorine or trifluoromethyl;
• Y1 is selected from halogen;
• Y2 is selected from halogen, C1-C3 haloalkyl, or C1-C3 haloalkoxy;
• R1 is selected from allyl, propargyl, cyclopropylmethyl, CNCH2—, CNCH2CH2—, CNCH2CH2CH2—, CNCH2CH2CH2CH2—, or
• R2 is selected from hydrogen or cyanide;
• and
• R3 is selected from C1-C4 alkyl, C3-C6 cycloalkyl, or C1-C4 alkoxy C1-C3 alkyl.