Blueberry, Gooseberry, Currant, and Elderberry

Marcelo L Moretti
Revised: 
March 2020

Quick Reference Guide to Herbicides Labeled for Use in Northern Highbush Blueberry

Active ingredient [WSSA #]1

(trade name)

Rate

pounds ai/a

(product)

Max seasonal per acre per year

(product)

Re-apply

(Month)

Minimal Age (Month)

Replant (Month)

PHI

(day)

1 For information on weed control efficacy of products listed in this article, see the publication “Pest Management Strategic Plan for Blueberries in Oregon and Washington” (DeFrancesco and Murray, 2011): http://www.ipmcenters.org/pmsp/pdf/ORWABlueberry.pdf

Soil active herbicides

dichlobenil [20]

(Casoron CS)

1.96 - 3.92 lb ai

(1.4 to 2.8 gal)

3.92 lb ai

2.8 gal

12

12

12

30

diuron [7]

(Direx 4L)

1.6 - 2.4 lb ai

(1.6 to 2.4 quarts)

3.2 lb ai

(3.2 quarts)

5

12

24

NA

Hexazinone [5]

(Velpar L CU)

1.0 to 2.0 lb ai

(4.0 to 8.0 pints)

2.0 lb ai

(8.0 pints)

12

36

24

50

indaziflam [29]

(Alion)

0.04 - 0.06 lb ai

(3.5 to 5 fl oz)

0.09 - 0.13 lb ai

(7.0 to 10.3 fl oz)

3

12

12

14

isoxaben [21]

(Trellis SC)

0.5 - 1 lb ai

(16 to 31 fl oz)

1.0 lb ai

(31 fl oz)

0

0

0

60

napropamide [15]

(Devrinol 50DF)

4 lb ai

(8 lb)

4 lb ai

(8 lb)

12

0

12

NA

norflurazon [12]

(Solicam DF)

1.95 - 3.93 lb ai

(2.5 to 5 lb)

3.93 lb ai

(5 lb)

0

0/6

12

60

oryzalin [3]

(Surflan)

2 - 6 lb ai

(2 to 6 quarts)

12 lb ai

(12 quarts)

2.5

0

0

NA

pronamide [3]

(Kerb SC)

1 - 2 lb ai

(2.5 to 5 pints)

2 lb ai

(5 pints)

12

12

0

NA

simazine [5]

(Princep 4L)

2 - 4 lb ai

(2 to 4 quarts)

4 lb ai

(4 quarts)

3

0

12

21

s-metolachlor [15]

(Dual Magnum)

0.64 to 1.27 lb ai

(0.67 to 1.33 pints)

1.27 lb ai

(1.3 pints)

12

12

12

28

sulfentrazone [14]

(Zeus XC)

0.25 - 0.375 lb ai

(8 to 12 fl oz)

0.375 lb ai

(12 fl oz)

2

36

1

3

trifluralin + isoxaben [3+21]

(Snapshot 2.5 TG)

2.5 to 5 lb ai

(100 to 200 lb)

15 lb ai

(600 lb)

2

0

0

365

Soil and foliar active herbicides

clopyralid [4]

(Stinger)

0.06 - 0.12 lb ai

(2.66 to 5.33 fl oz)

0.25 lb ai

(10.6 fl oz)

-

12

18

30

flumioxazin [14]

(Chateau SW)

0.18 - 0.38 lb ai

(6 to 12 oz)

0.76 lb ai

(24 oz)

1

24

2

7

halosulfuron [2]

(Sandea)

0.023 - 0.031 lb ai

(0.5 to 0.66 /1 oz)

0.062 lb ai

(2.0 oz)

1.5

12

9

14

rimsulfuron [2]

(Matrix)

0.03 - 0.06 lb ai

(2 to 4 oz)

0.06 lb ai

(4 oz)

1

12

12

21

mesotrione [27]

(Callisto)

0.09 - 0.18 lb ai

(3 to 6 fl oz)

0.18 lb ai

(6 fl oz)

0.5

12

18

NA

Quinclorac [4]

(Quinstar 4L)

0.37 lb ai

(12.6 fl oz)

0.74 lb ai

(25.2 fl oz)

1

-

10

30

Foliar active herbicides

carfentrazone [14]

(Aim EC)

0.01 - 0.03 lb ai

(1 - to fl oz)

0.097 lb ai

(6.1 fl oz)

0.5

0

0

1

clethodim [1]

(Select max)

0.07 - 0.12 lb ai

(9 to 16 fl oz)

0.24 lb ai

(32 fl oz)

0.5

0

0

14

diquat [22]

(Reglone)

0.37-0.56 lb ai

(1.5 to 2 pints)

0.56 lb ai

(2 pints)

0.5

0

0

365

fluazifop [1]

(Fusilade DX)

0.25 - 0.375 lb ai

(16 to 24 fl oz)

0.75

(48 fl oz)

0.5

0

0

1

glufosinate [10]

(Rely 280)

0.88 - 1.5 lb ai

(48 to 82 fl oz)

3 lb ai

(164 fl oz)

0.5

0

6

14

glyphosate [9]

(Roundup Powermax)

0.38 - 3.69 lb ae

(11 to 105 fl oz)

7.87 lb ae

(224 fl oz)

0.5

3 days

3 days

3

paraquat [22]

(Gramoxone SL)

0.625 - 1 lb ai

(2.5 to 5 pints)

4 lb ai

(20 pints)

0.5

0

0

0

pelargonic acid

(Scythe)

3- 10 % v/v

NA

NA

NA

1

sethoxydim [1]

(Poast)

0.19 - 0.47 lb ai

(1 to 2.5 pints)

0.94 lb ai

(5 pints)

0.5

0

0

30