Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701) 742-2700, email: rgreenla@ndsuext.nodak.edu

 

Onion Weed Control Study, 2002

 

Click on date to see picture

No.

Pictures

Chemicals

Rates

Application timing

1

  

Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1.5 pt + 20 gal

(1.5 + 0.5 pt) + 1.5 pt

POST1 + POST2

POST4 & POST6 + POST5

2

  

Dacthal + 28% N

(Buctril + Goal2XL) + Prowl

8 lbs + 20 gal

(1.5 + 0.5 pt) + 1.5 pt

PRE2 + POST2

POST4 & POST6 + POST5

3

  

Valor + 28% N

1.5 oz + 20 gal

PRE + POST2

4

  

Valor + 28% N

3.0 oz + 20 gal

PRE + POST2

5

  

Prowl + 28% N + Valor

1.5 pt + 20 gal + 1.5 oz

PRE + POST2 + POST4

6

  

Nortron + 28% N

3 pts + 20 gal

PRE + POST2

7

  

Nortron + 28% N

6 pts + 20 gal

PRE + POST2

8

  

Nortron + 28% N + (Buctril + Goal2XL)

3 pts + 20 gal + (1.5+0.5 pt)

PRE + POST2 + POST4

9

  

Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1.5 pts + 20 gal

(0.75 + 0.25 pt) + 1.5 pt

POST1 + POST2

POST2 & POST6 + POST5

10

  

Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1.5 pt + 20 gal

(0.75 + 0.25 pt) + 1.5 pt

POST1 + POST2

POST4 & POST6 + POST5

11

  

Prowl + 28% N +

(Buctril + Goal2XL)

1.5 pt + 20 gal

(1.5 + 0.5 pt)

POST1 + POST2

POST4 & POST6

12

  

Buctril + Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1 pt + 1 pt +20 gal

(1.5 + 0.5 pt) + 1.5 pt

PRE3 + POST1 + POST2

POST4 & POST6 + POST5

13

  

Prowl + Urea +

(Buctril + Goal2XL) + Prowl

1.5 pt + 60 lbs

(1.5 + 0.5 pt) + 1.5 pt

POST1 + POST2

POST4 & POST6 + POST5

14

  

Prowl + 28% N + Urea

(Buctril + Goal2XL) + Prowl

1.5 pt+15 gal+15 lbs

(1.5 + 0.5 pt) + 1.5 pt

POST1 + POST2 + POST2

POST4 & POST6 + POST5

15

  

Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1.5 pt + 25 gal

(1.5 + 0.5 pt) + 1.5 pt

POST1 + POST2

POST4 & POST6 + POST5

16

  

Prowl + 28% N +

(Buctril + Goal2XL)

Dual II Magnum

1.5 pt + 20 gal

(1.5 + 0.5 pt)

1 pt

POST1 + POST2

POST4 & POST6

POST5

17

  

Prowl + 28% N +

(Buctril + Goal2XL)+Outlook

1.5 pt + 20 gal

(1.5 + 0.5 pt) + 1 pt

POST1 + POST2

POST4 & POST6 + POST5

18

  

Prowl + 28% N +

(Buctril + Goal2XL)

Authority

1.5 pt + 20 gal

(1.5 + 0.5 pt)

3 oz

POST1 + POST2

POST4 & POST6

POST5

19

  

Prowl + 28% N +

Authority

1.5 pt + 20 gal

3 oz

POST1 + POST2

POST5

20

  

Prowl + 28% N +

(Buctril + Goal2XL) + Prowl

1.5 pt + 20 gal

(1.5 + 0.5 pt) + 1.5 pt

PRE + POST2

POST4 & POST6 + POST5

21

  

Handweed + 28% N

20 gal

POST2

All treatments receive Poast (1.5 pts) + surfactant at POST3.

PRE - after onions & barley are planted; PRE2 - just after barley emerges; PRE3 - just before onions emerge; POST1 - just after onions emerge; POST2 - when onions have 1 true leaf; POST3 - when barley cover crop is 6" tall; POST4 - when onions have 2 true leaves; POST5 - when onions have 3 true leaves; POST6 - when onions have 4 to 5 true leaves.

 

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