Alfalfa Experiment Number 2, CSUC
Table 2. Results of for seedling alfalfa weed control timing
trial. Ratings taken April 1 and March 3, 1999. Weed control ratings are based on a (0-10)
scale. Rating of 8 is economic weed control, 10 is 100 % weed control. |
|
|
Application |
|
Cost |
Overall Rating |
Crop Injury |
Shepherds Purse |
Radish |
Chickweed |
Wheat |
|
Treatments |
Timings |
Lb
ai / A |
$/A |
3-Mar |
1-Apr |
3-Mar |
1-Apr |
3-Mar |
1-Apr |
3-Mar |
1-Apr |
3-Mar |
1-Apr |
3-Mar |
1-Apr |
1 |
Buctril
EC |
17-Dec-98 |
2-3
tfl |
0.188 |
$6.35 |
5.5 |
6.8 |
1.0 |
0.0 |
8.5 |
8.8 |
7.0 |
8.3 |
6.3 |
5.3 |
5.5 |
3.8 |
|
|
27-Jan-99 |
4-6
tfl |
0.375 |
$12.69 |
3.0 |
5.5 |
3.5 |
1.0 |
8.0 |
8.3 |
7.1 |
7.9 |
3.5 |
2.8 |
3.0 |
5.3 |
|
|
4-Mar-99 |
8-10
tfl |
0.375 |
$12.69 |
|
5.3 |
|
0.0 |
|
6.8 |
|
8.3 |
|
4.5 |
|
4.8 |
2 |
Butoxone
EC |
17-Dec-98 |
2-3
tfl |
1.00 |
$19.16 |
4.0 |
4.5 |
4.0 |
2.5 |
6.8 |
6.8 |
7.3 |
6.0 |
5.3 |
3.0 |
4.0 |
4.3 |
|
&COC |
27-Jan-99 |
4-6
tfl |
1.00 |
$19.16 |
5.0 |
4.0 |
6.0 |
3.5 |
6.0 |
5.5 |
5.0 |
4.8 |
5.3 |
3.8 |
5.0 |
4.8 |
|
|
4-Mar-99 |
8-10
tfl |
1.00 |
$19.16 |
|
2.5 |
|
1.8 |
|
2.5 |
|
2.6 |
|
2.3 |
|
4.3 |
3 |
Pursuit
|
17-Dec-98 |
2-3
tfl |
0.063 |
$17.40 |
8.3 |
7.8 |
1.5 |
0.0 |
8.8 |
8.8 |
7.3 |
8.3 |
8.5 |
6.5 |
8.3 |
5.8 |
|
&
COC |
27-Jan-99 |
4-6
tfl |
0.063 |
$17.40 |
5.8 |
5.0 |
1.5 |
0.0 |
8.5 |
6.3 |
5.5 |
4.8 |
6.5 |
4.0 |
5.8 |
5.3 |
|
|
4-Mar-99 |
8-10
tfl |
0.063 |
$17.40 |
|
6.0 |
|
0.0 |
|
6.3 |
|
3.3 |
|
5.0 |
|
5.3 |
4 |
Butril
EC |
17-Dec-98 |
2-3
tfl |
0.125,
0.5 |
$13.81 |
4.8 |
5.8 |
3.5 |
1.0 |
7.8 |
8.3 |
7.1 |
8.5 |
5.3 |
4.3 |
4.8 |
4.8 |
|
&
Butoxone EC |
27-Jan-99 |
4-6
tfl |
0.25,
0.5 |
$18.04 |
5.5 |
5.8 |
3.0 |
0.5 |
7.8 |
8.3 |
6.0 |
6.0 |
4.8 |
4.5 |
5.5 |
5.5 |
|
|
4-Mar-99 |
8-10
tfl |
0.25,
0.5 |
$18.04 |
|
3.3 |
|
1.9 |
|
4.5 |
|
2.0 |
|
2.3 |
|
4.8 |
5 |
Pursuit
|
17-Dec-98 |
2-3
tfl |
0.063,
0.125 |
$21.63 |
7.5 |
8.3 |
2.0 |
0.0 |
8.5 |
9.0 |
8.0 |
8.5 |
8.0 |
6.8 |
7.5 |
5.8 |
|
&
Buctril EC |
27-Jan-99 |
4-6
tfl |
0.063,
0.25 |
$25.86 |
5.5 |
5.5 |
4.5 |
2.5 |
8.0 |
8.3 |
6.8 |
5.8 |
7.0 |
3.8 |
5.5 |
5.5 |
|
&
COC |
4-Mar-99 |
8-10
tfl |
0.063,
0.25 |
$25.86 |
|
4.3 |
|
0.5 |
|
5.8 |
|
6.8 |
|
3.5 |
|
5.3 |
6 |
Butoxone
EC |
17-Dec-98 |
2-3
tfl |
0.063,
0.5 |
$26.98 |
7.3 |
7.3 |
2.0 |
0.5 |
8.3 |
8.5 |
|
6.8 |
8.0 |
5.8 |
7.3 |
5.5 |
|
&
Pursuit |
27-Jan-99 |
4-6
tfl |
0.063,
0.5 |
$26.98 |
6.0 |
5.8 |
5.0 |
3.0 |
8.0 |
7.5 |
7.0 |
6.0 |
6.8 |
3.8 |
6.0 |
5.5 |
|
&
COC |
4-Mar-99 |
8-10
tfl |
0.063,
0.5 |
$26.98 |
|
4.3 |
|
3.1 |
|
5.3 |
3.3 |
5.0 |
|
3.5 |
|
5.5 |
|
|
|
|
Grand mean |
5.66 |
5.40 |
3.17 |
1.17 |
7.90 |
6.94 |
6.47 |
6.13 |
6.25 |
4.17 |
4.06 |
5.07 |
|
|
|
|
|
C.V.(%) |
27.00 |
25.30 |
50.46 |
90.56 |
13.55 |
12.23 |
26.95 |
26.69 |
26.34 |
30.56 |
41.29 |
21.31 |
|
LSD@0.05 |
1.56 |
1.12 |
1.62 |
0.87 |
1.08 |
0.69 |
ns |
2.01 |
1.66 |
1.04 |
ns |
0.88 |
*All
COC additives were applied at 1% v/v
|
