| abstract |
The invention relates to a heterocyclic compound containing N and S with nematicide activity, its preparation method and application. Specifically, the present invention discloses a compound of formula (I) or its optical isomers, cis-trans isomers or pesticide acceptable salts, and a preparation method thereof. The invention also discloses the agricultural composition comprising the above compound and its application. Said compound has excellent nematicide activity. |