A compound of Formula (I): or an agronomically acceptable salt thereof, wherein: - Q is Q 1 or Q 2 ; R 1a is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 1b is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 2 is selected from the group consisting of halogen, C 1 -C 6 alkyl-, C 1 -C 3 alkoxy-, C 1 -C 6 haloalkyl-, C 1 -C 3 haloalkoxy- and -S(O) p C 1 -C 6 alkyl; R 3 is C 1 -C 3 haloalkyl; R 4 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl-, C 3 -C 6 cycloalkyl-, C 3 -C 6 cycloalkyl-C 1 -C 3 alkyl-, C 1 -C 3 alkoxy-C 1 -C 3 alkyl-, C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-, C 1 -C 4 alkoxy-C 1 -C 4 haloalkyl-, C 1 -C 3 alkyl-S(O) p C 1 -C 3 alkyl-, and cyano-C 1 -C 6 alkyl; R 5 is selected from the group consisting of hydrogen, C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl and C 1 -C 6 cycloalkyl; or R 4 and R 5 together with the nitrogen atom to which they are attached form an optionally substituted 5- or 6-membered saturated heterocycle; and p is 0, 1 or 2. or an agronomically acceptable salt thereof, wherein: - Q is Q 1 or Q 2 ; R 1a is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 1b is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 2 is selected from the group consisting of halogen, C 1 -C 6 alkyl-, C 1 -C 3 alkoxy-, C 1 -C 6 haloalkyl-, C 1 -C 3 haloalkoxy- and -S(O) p C 1 -C 6 alkyl; R 3 is C 1 -C 3 haloalkyl; R 4 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl-, C 3 -C 6 cycloalkyl-, C 3 -C 6 cycloalkyl-C 1 -C 3 alkyl-, C 1 -C 3 alkoxy-C 1 -C 3 alkyl-, C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-, C 1 -C 4 alkoxy-C 1 -C 4 haloalkyl-, C 1 -C 3 alkyl-S(O) p C 1 -C 3 alkyl-, and cyano-C 1 -C 6 alkyl; R 5 is selected from the group consisting of hydrogen, C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl and C 1 -C 6 cycloalkyl; or R 4 and R 5 together with the nitrogen atom to which they are attached form an optionally substituted 5- or 6-membered saturated heterocycle; and p is 0, 1 or 2. Q is Q 1 or Q 2 ; R 1a is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 1b is selected from the group consisting of C 1 -C 4 alkyl-, C 1 -C 4 haloalkyl-, C 1 -C 4 alkoxy-C 1 -C 4 alkyl- and C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-; R 2 is selected from the group consisting of halogen, C 1 -C 6 alkyl-, C 1 -C 3 alkoxy-, C 1 -C 6 haloalkyl-, C 1 -C 3 haloalkoxy- and -S(O) p C 1 -C 6 alkyl; R 3 is C 1 -C 3 haloalkyl; R 4 is selected from the group consisting of C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl-, C 3 -C 6 cycloalkyl-, C 3 -C 6 cycloalkyl-C 1 -C 3 alkyl-, C 1 -C 3 alkoxy-C 1 -C 3 alkyl-, C 1 -C 4 haloalkoxy-C 1 -C 4 alkyl-, C 1 -C 4 alkoxy-C 1 -C 4 haloalkyl-, C 1 -C 3 alkyl-S(O) p C 1 -C 3 alkyl-, and cyano-C 1 -C 6 alkyl; R 5 is selected from the group consisting of hydrogen, C 1 -C 6 alkyl-, C 1 -C 6 haloalkyl and C 1 -C 6 cycloalkyl; or R 4 and R 5 together with the nitrogen atom to which they are attached form an optionally substituted 5- or 6-membered saturated heterocycle; and p is 0, 1 or 2. <EOS>