Weed Control in White Bean with Various Halosulfuron Tankmixes
Table 2
Percent control, density, and dry weight of redroot pigweed in white bean treated with halosulfuron tankmixes applied PPI at Exeter (2011-2012) and Harrow, ON (2012). Means followed by the same letter within a column are not significantly different according to Fisher’s Protected LSD at .
Herbicide treatment
Rate (g ai ha−1)
Control
Density
Dry weight
4 WAE
8 WAE
%
# m−2
g m−2
Weedy check
0
0
6.0 c
29.7 c
Weed-free check
100
100
0.0 a
0.0 a
Trifluralin
600
80
96
0.7 ab
4.9 b
s-Metolachlor
1050
84
95
0.6 a
4.3 ab
Halosulfuron
35
83
100
0.8 ab
2.5 ab
Imazethapyr
45
75
92
2.0 b
3.9 ab
Trifluralin + halosulfuron
600 + 35
85
100
0.6 a
3.3 ab
Trifluralin + imazethapyr
600 + 45
78
100
0.8 ab
5.8 b
Trifluralin + halosulfuron + imazethapyr
600 + 35 + 45
91
100
0.6 a
3.5 ab
s-Metolachlor + halosulfuron
1050 + 35
87
100
0.4 a
2.0 ab
s-Metolachlor + imazethapyr
1050 + 45
87
100
0.3 a
1.6 ab
s-Metolachlor + halosulfuron + imazethapyr
1050 + 35 + 45
91
100
0.1 a
0.3 a
Abbreviations: WAE, weeks after crop emergence; PPI, preplant incorporated.
