This disclosure relates to the field of molecules having pesticidal utility against pests in Phyla Arthropoda, Mollusca, and Nematoda, processes to produce such molecules, intermediates used in such processes, pesticidal compositions containing such molecules, and processes of using such pesticidal compositions against such pests. These pesticidal compositions may be used, for example, as acaricides, insecticides, miticides, molluscicides, and nematicides. This document discloses molecules having the following formula (Formula One).

##STR00001##

Disclosed are a compound of Formula 1, stereoisomers, N-oxides, and salts thereof, agricultural compositions containing them and their use as herbicides:

##STR00001##

wherein R.sup.1, R.sup.2, Q and R.sup.3 are as defined in the disclosure of the invention.

Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.

Disclosed are a compound of Formula 1, stereoisomers, N-oxides, and salts thereof, agricultural compositions containing them and their use as herbicides:

##STR00001##

wherein R.sup.1, R.sup.2, Q and R.sup.3 are as defined in the disclosure of the invention.

Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.