Weed Control in Corn and Soybean with Group 15 (VLCFA Inhibitor) Herbicides Applied Preemergence

Table 4

Control, density, and dry weight of common lambsquarters in corn and soybean treated with VLCFA inhibitor herbicides, applied preemergence (PRE), near Exeter in 2015–2017 and Ridgetown in 2017^a.

Treatment	Rate (g·ai·ha^−1)	Control (%)		Density (no. m^−2)	Dry weight (g·m^−2)
		4 WAA	8 WAA
Corn
Weed-free control		100	100	0.0^a	0.0^a
Weedy control		0^c	0^b	15.8^d	11.9^c
Dimethenamid-P	544	68^ab	63^a	4.1^bc	4.1^bc
Pethoxamid	840	70^ab	77^a	3.4^bc	1.6^b
Pyroxasulfone	100	84^a	84^a	1.3^b	0.8^a
S-metolachlor	1050	60^b	65^a	5.4^c	7.0^bc
Soybean
Weed-free control		100	100	0^a	0.0^a
Weedy control		0^b	0^b	33^c	19.4^b
Dimethenamid-P	544	43^a	32^ab	9^b	8.9^b
Pethoxamid	840	33^a	30^ab	11^b	9.9^b
Pyroxasulfone	100	56^a	43^a	6^b	7.6^b
S-metolachlor	1050	32^a	30^ab	15^bc	15.8^b

^aMeans followed by the same alphabetical letter within a column for each crop are not significantly different according to the Tukey–Kramer multiple range test at .