North Dakota State University www.ag.ndsu.edu Crops Family-Youth-4-H Economics-Community-Leadership Home-Lawn-Garden-Trees Environment-Natural Resources Energy Livestock Nutrition-Food Safety-Health
 

Hard Red Spring Wheat and Durum Wheat Production Guide (continued)

A-1050, May 1998

Weed Control (continued)



Relative herbicide effectiveness on weeds and persistence in soil.

This table gives a general rating of relative herbicide effectiveness to weeds listed and persistance of herbicides in soil. Under favorable weather conditions, control may be better than indicated. Under unfavorable conditions, some herbicides rated as good or fair may give erratic and unacceptable results. Also, dry and/or cool weather increases herbicide persistence while wet and/or warm weather reduces herbicide persistence.

Weed control ratings in this section are based on the following scale: 

  E = Excellent = 90 to 99% Control   P = Poor = 40 to 65% Control
  F = Fair = 65 to 80% Control        G = Good = 80 to 90% Control
  N = None = No Control

Herbicide persistence ratings are for residues present 12 months after application:

  O = Often   S = Seldom   N = None
SOIL APPLIED
HERBICIDES		 B
a
r
n
y
a
r
d
g
r
a
s
s		 F
i
e
l
d

S
a
n
d
b
u
r

 F
o
x
t
a
i
l,

G
r
e
e
n

 F
o
x
t
a
i
l,

Y
e
l
l
o
w

 Q
u
a
c
k
g
r
a
s
s		 V
o
l
u
n
t
e
e
r

C
e
r
e
a
l
s

 W
i
l
d

O
a
t

 W
i
l
d

P
r
o
s
o

M
i
l
l
e
t

 B
u
c
k
w
h
e
a
t,

W
i
l
d

 C
o
c
k
l
e
b
u
r,

C
o
m
m
o
n

 F
l
i
x
w
e
e
d		 K
o
c
h
i
a		 L
a
m
b
s
q
u
a
r
t
e
r
s,

C.
Far-Go (PPI) N N N-P N-P N N E N N N N N N
Far-Go (PoPI) N N N-P N-P N N G N N N N N N
Trifluralin (PPI) E G E1 E1 N N F-G P-F P-F N P G-E G-E
Trifluralin (PoPI) E F-G E1 E1 N N P P P N P F-G F-G

PPI = Preplant incorporated, PoPI = Post plant incorporated,
1Except where resistant populations have developed.



Soil Applied Herbicides Continued

SOIL APPLIED
HERBICIDES		 L
a
n
c
e
l
e
a
f

S
a
g
e

 M
a
l
l
o
w,

V
e
n
i
c
e

 M
a
r
s
h
e
l
d
e
r		 M
u
s
t
a
r
d,

W
i
l
d

 N
i
g
h
t
s
h
a
d
e,

B
l
a
c
k

 P
i
g
w
e
e
d,

R
e
d
r
o
o
t

 P
r
i
c
k
l
y

L
e
t
t
u
c
e

 R
a
g
w
e
e
d,

C
o
m
m
o
n

 S
m
a
r
t
w
e
e
d,

A
n
n
u
a
l

 S
u
n
f
l
o
w
e
r		 T
h
i
s
t
l
e,

R
u
s
s
i
a
n

 T
h
i
s
t
l
e,

C
a
n
a
d
a

 H
e
r
b
i
c
i
d
e

P
e
r
s
i
s
t
e
n
c
e
Far-Go (PPI) N N N N N N N N N N N N N
Far-Go (PoPI) N N N N N N N N N N N N N
Trifluralin (PPI) N F-G N N P E N P P N G N S
Trifluralin (PoPI) N P — N N F-G N P P N F-G N S

PPI = Preplant incorporated, PoPI = Post plant incorporated,
1Except where resistant populations have developed.

 

[ CONTINUE ] [ INDEX ]

A-1050, May 1998

County Commissions, North Dakota State University and U.S. Department of Agriculture cooperating. North Dakota State University does not discriminate on the basis of age, color, disability, gender expression/identity, genetic information, marital status, national origin, public assistance status, sex, sexual orientation, status as a U.S. veteran, race or religion. Direct inquiries to the Vice President for Equity, Diversity and Global Outreach, 205 Old Main, (701) 231-7708. This publication will be made available in alternative formats for people with disabilities upon request, 701 231-7881.