1. HERBICIDE RESEARCH REVIEW,
NDSU Carrington Research
Extension Center, 2011.
Greg Endres, Extension area agronomist
NDSU Carrington Research Extension Center
701-652-2951; gregory.endres@ndsu.edu

2. Dandelion control with spring herbicide
treatments, Carrington, 2011.

3. Dandelion control with spring herbicide
treatments, Carrington, 2011.
100
90
80
70 RU PM 22 fl oz
60
Express SG 0.5 oz
50
%
Exp 0.25 oz + RU
40
Exp 0.5 oz + RU
%
30
Sharpen 1 fl oz + RU
20
10
0
1 2 3 4 months after treatment
Treatments applied June 9 on rosette (5- to 12-inch diameter) to ‘puffball’ dandelion in non-crop environment.
All treatments included Class Act at 2.5% except Express without RU (Preference at 0.25%); Sharpen also
included Destiny HC at 12 fl oz/A.

4. 1 MAT
2 MAT
Express 0.25 oz + RU Sharpen + RU

5. Dandelion control
with fall herbicide
treatments,
Carrington, 2011.

6. Dandelion control with fall herbicide
treatments, Carrington, 2011.
100 94
90 85 88
80 73 75 RU PowerMax 22 fl oz
69
70 63 2,4-D 16 fl oz
60 Express WG 0.33 oz
50
%
RU + 2,4-D
40 33 RU + 2,4-D + Express
30 RU + 2,4-D + Valor 2 oz
RU + 2,4-D + Valor 3 oz
20
RU + Sharpen 2 fl oz
10
0
25 days after treatment
Treatments applied Sep 22 on rosette dandelion in non-crop environment. All treatments included Class Act at
2.5% except 2,4-D; Sharpen also included Destiny HC at 12 fl oz/A.

7. Soybean yield with timing of weed removal,
Carrington and Doyon, 2011.
60 55.4 55.5 56.3 53.7
LSD (0.05): 10.3
50
41.9
40 38.6 38.8
35.6 check
29.5 soil
Bu/A
30
ePOST
mPOST
20 15.5 lPOST
10
0
Doyon CREC

8. Soybean yield with timing of weed removal,
Carrington and Doyon, 2011.
60
50 48.7 47.1 47.6
41.6
40 check
Bu/A
soil
30 25.6 ePOST
mPOST
20
lPOST
10
0
2 site-yr

9. Questions or
Comments?