| abstract |
Disclosed are compounds of Formula 1, n n n n n n n n n n whereinn X is O or S; Y is O or S; and R 1 , R 2 , R 3 and R 4 are as defined in the disclosure.n nAlso disclosed are compositions containing the compounds of Formula 1 and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention. |