3'(3,5-Dichlorophenyl)-spiro(3-oxabicycloc[3.1.0 ]hexane)-6,5'-oxazolidine-2',4'-dione

Abstract

Compounds of the formula I ##STR1## wherein at least one of the substituents R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is C.sub.1 -C.sub.4 alkyl and each of the others independently is hydrogen or C.sub.1 -C.sub.4 alkyl, or, if R.sub.1 and R.sub.3 are both hydrogen, R.sub.2 and R.sub.4 can form a C.sub.2 -C.sub.4 alkylene bridge in which one CH.sub.2 member can be replaced by oxygen. These compounds possess valuable microbicidal properties, and they can be used in actual practice by themselves, or in the form of pesticidal compositions, especially for protecting cultivated plants from attack by fungus. The compounds of formula I have both a residual-protective and a systemic action.

Dependencies are inferred from the claim text.