Weed Control in Corn (Zea mays L.) as Influenced by Preemergence Herbicides

Table 4

Amaranthus palmeri control in corn with PRE herbicides.

Treatment	⁢Dose; ⁢Product/ha	2013		2015
		Taylor	Ganado	Taylor	Ganado
		Days after treatment
		95	109	101	44
		%
Atrazine (A)	2.34 L	73	99	79	72
Fluthiacet-methyl (F) + pyroxasulfone (P)	0.75 L	—	—	99	98
(F) + (P) + (A)	2.62 L	—	—	40	93
Isoxaflutole	0.47 L	100	98	51	67
S-Metolachlor (S)	1.59 L	100	76	99	69
(S) + (A)	4.96 L	100	99	99	92
Alachlor + (A)	8.23 L	100	99	—	—
Mesotrione (M)	0.47 L	99	61	71	52
Thiencarbazone-methyl + isoxaflutole	0.19 L	100	92	99	83
(S) + (A) + (M) + bicyclopyrone	2.90 L	—	—	99	72
Acetochlor + (A)	8.23 L	100	100	99	93
Dimethenamid-P + (A)	4.12 L	100	100	99	95
Acetochlor (74.8%)	8.23 L	—	—	100	100
Rimsulfuron + (M)	0.47 L	100	27	—	—
Rimsulfuron + thifensulfuron-methyl	0.09 L	99	90	98	37
(S) + (A) + (M)	7.02 L	100	97	99	90
Dimethenamid-P	1.22 L	98	53	96	92
Pendimethalin	3.55 L	97	83	98	47
Saflufenacil	0.19 L	99	72	70	73
Saflufenacil + dimethenamid-P	1.12 L	100	95	99	100
Acetochlor (33%)	3.55 L	100	50	99	88
(S) + (M)	7.02 L	100	91	100	94
(P)	210.16 G	100	91	99	84
Untreated	—	0	0	0	0
LSD (0.05)		17	27	22	24

L = liters; G = grams.