Red rice control (%)^b

Herbicide Treatment

Rate

Timing^a

2011 to 2012

2012 to 2013

(g∙ha⁻¹)

14 DAA

28 AA

14 DAA

28 DAA

S-metolachlor

768

PRE

65

74

82

53

S-metolachlor

1152

PRE

69

79

72

55

S-metolachlor

1680

PRE

65

84

90

64

S-metolachlor + glyphosate

768 + 1860

PRE

56

84

90

79

S-metolachlor + glyphosate

1152 + 1860

PRE

70

91

89

74

S-metolachlor + glyphosate

1680 + 1860

PRE

68

87

98

95

S-metolachlor

768

EPOST

0

0

23

23

S-metolachlor

1152

EPOST

0

0

28

20

S-metolachlor

1680

EPOST

0

0

33

27

S-metolachlor + glyphosate

768 + 1860

EPOST

96

99

97

96

S-metolachlor + glyphosate

1152 + 1860

EPOST

98

100

98

98

S-metolachlor + glyphosate

1680 + 1860

EPOST

98

100

98

98

Untreated check

-

-

N/A

N/A

N/A

N/A

LSD (0.05)

-

-

11

9

16

22