GR marestail control

GR marestail

GR marestail

Soybean

Herbicide treatment^a

Rate

4 WAT

8 WAT

density

dry biomass

yield

(g ai/ae ha⁻¹)

(%)

(%)

(plants m⁻¹)

(g·m⁻¹)

(T·ha⁻¹)

Weed-free control

100

100

0 a

0 a

2.70 a

Untreated control

0 c

0 d

626 d

206.2 d

1.09 b

Saflufenacil^b

25

93 a

93 ab

4 ab

4.7 b

2.51 a

Saflufenacil + metribuzin^b

25 + 400

99 a

98 a

1 a

0.3 a

2.67 a

2,4-D ester

500

62 b

58 c

120 c

57.9 c

2.34 a

2,4-D ester + metribuzin

500 + 400

93 a

91 b

8 b

9.5 b

2.68 a

Pyraflufen/2,4-D

532

63 b

60 c

146 c

81.5 c

2.22 a

Pyraflufen/2,4-D + metribuzin

532 + 400

96 a

95 ab

3 ab

2.1 ab

2.63 a

2,4-D choline/glyphosate

1720

70 b

67 c

70 c

44.6 c

2.21 a

2,4-D choline/glyphosate + metribuzin + chlorimuron-ethyl

1720 + 400 + 9

96 a

94 ab

2 ab

1.4 ab

2.44 a

Halauxifen-methyl^c

5

72 b

71 c

120 c

47.0 c

2.46 a

Halauxifen-methyl + metribuzin + chlorimuron-ethyl^c

5 + 400 + 9

94 a

93 ab

6 b

3.8 ab

2.42 a