Weed species

Population

Height (cm)

Herbicide

#Plants treated

#Plants survived

Survival %

% Control

Palmer amaranth

GR1

≤12.5

2,4-D + glyphosate

15

0

0

100

Palmer amaranth

GR2

≤12.5

2,4-D + glyphosate

15

0

0

100

Palmer amaranth

GR3

≤12.5

2,4-D + glyphosate

15

0

0

100

Tall waterhemp

GR

≤12.5

2,4-D + glyphosate

15

0

0

100

Palmer amaranth

GR1

≥25

2,4-D + glyphosate

15

2

13

90

Palmer amaranth

GR2

≥25

2,4-D + glyphosate

15

0

0

100

Palmer amaranth

GR3

≥25

2,4-D + glyphosate

15

0

0

100

Tall waterhemp

GR

≥25

2,4-D + glyphosate

15

1

7

95

Common ragweed

GR

10-15

2,4-D + glyphosate

15

0

0

100

Palmer amaranth

GR1

≥25

Dicamba

15

0

0

100

Palmer amaranth

GR2

≥25

Dicamba

15

0

0

100

Palmer amaranth

GR3

250

Dicamba

15

15

100

80

Tall waterhemp

GR

≥25

Dicamba

15

12

80

40

Common ragweed

GR

10-15

Dicamba

15

0

0

98