A compound of the formula wherein X is selected from S and O; R b is selected from C 1 -C 6 alkyl, C 1 -C 6 cyanoalkyl, C 3 -C 6 cycloalkyl, C 3 -C 6 cyanocycloalkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkylthio, R c is selected from hydrogen, halogen, cyano, C 1 -C 6 alkyl or C 1 -C 6 haloalkyl; or R b and R c together with the carbon atoms to which they are attached form a 3-7 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen, C 1 -C 6 alkyl and C 1 -C 6 haloalkyl; R 2 is selected from C 1 -C 4 alkoxy, C 1 -C 4 alkoxy-C 1 -C 4 alkyl; R 3 is selected from halogen, hydroxyl, -NR 5 R 6, or any one of the following groups R 5 and R 6 are independently selected from hydrogen, C 1 -C 20 alkyl, C 1 -C 20 haloalkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, or R 5 and R 6 together with the carbon atoms to which they are attached form a 3-6 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen and C 1 -C 6 alkyl; R 7 and R 8 are independently selected from hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, a C 5 -C 10 heteroaryl group which can be mono- or bicyclic comprising from 1 to 4 heteroatoms independently selected from N, O and S and optionally substituted with 1 to 3 groups independently selected from halogen, C 1 -C 3 alkyl, C 1 -C 3 haloalkyl and C 1 -C 3 alkoxy, a C 6 -C 10 aryl group optionally substituted with 1 to 3 groups independently selected from halogen, nitro, cyano, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 1 -C 3 haloalkyl and C 1 -C 3 haloalkoxy, or R 7 and R 8 together with the atoms to which they are attached form a 3-6 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen or C 1 -C 6 alkyl; R 9 is selected from C 1 -C 6 alkyl or benzyl optionally substituted with 1 to 3 groups independently selected from halogen, nitro, cyano, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 1 -C 3 haloalkyl and C 1 -C 3 haloalkoxy; or an N-oxide or salt form thereof and wherein the dihydro-hydantoin ring carbon to which R 2 is attached has the R-stereochemistry as depicted. X is selected from S and O; R b is selected from C 1 -C 6 alkyl, C 1 -C 6 cyanoalkyl, C 3 -C 6 cycloalkyl, C 3 -C 6 cyanocycloalkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkylthio, R c is selected from hydrogen, halogen, cyano, C 1 -C 6 alkyl or C 1 -C 6 haloalkyl; or R b and R c together with the carbon atoms to which they are attached form a 3-7 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen, C 1 -C 6 alkyl and C 1 -C 6 haloalkyl; R 2 is selected from C 1 -C 4 alkoxy, C 1 -C 4 alkoxy-C 1 -C 4 alkyl; R 3 is selected from halogen, hydroxyl, -NR 5 R 6, or any one of the following groups R 5 and R 6 are independently selected from hydrogen, C 1 -C 20 alkyl, C 1 -C 20 haloalkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, or R 5 and R 6 together with the carbon atoms to which they are attached form a 3-6 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen and C 1 -C 6 alkyl; R 7 and R 8 are independently selected from hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, a C 5 -C 10 heteroaryl group which can be mono- or bicyclic comprising from 1 to 4 heteroatoms independently selected from N, O and S and optionally substituted with 1 to 3 groups independently selected from halogen, C 1 -C 3 alkyl, C 1 -C 3 haloalkyl and C 1 -C 3 alkoxy, a C 6 -C 10 aryl group optionally substituted with 1 to 3 groups independently selected from halogen, nitro, cyano, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 1 -C 3 haloalkyl and C 1 -C 3 haloalkoxy, or R 7 and R 8 together with the atoms to which they are attached form a 3-6 membered saturated or partially unsaturated ring optionally comprising from 1 to 3 heteroatoms independently selected from S, O and N and optionally substituted with from 1 to 3 groups independently selected from halogen or C 1 -C 6 alkyl; R 9 is selected from C 1 -C 6 alkyl or benzyl optionally substituted with 1 to 3 groups independently selected from halogen, nitro, cyano, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 1 -C 3 haloalkyl and C 1 -C 3 haloalkoxy; or an N-oxide or salt form thereof and wherein the dihydro-hydantoin ring carbon to which R 2 is attached has the R-stereochemistry as depicted.