Fungicides and Bactericides for Commercial Onion Production


Fungicides and bactericides registered for commercial use on onions in Utah, organized by Mode of Action (MoA).

Primary Active Ingredient

Brand Name

MoA

Residual Days

Stemp Blight

Botrytis Neck Blight

Bacterial Soft Rot

Black Mold

propiconazole

Omni Propiconazole 41.8% EC

3

14

x

 

 

 

cyprodinil

Vangard WG

9

7-10

x

 

 

 

pyraclostrobin

Cabrio EG, Innliven Elite, Innliven P

11

7-10

x

 

 

 

polyoxin D zinc saltO

OSO 5% SC

19

5-7

x

x

 

 

cinnamon oilO

Cinnerate

BM1

3

 

 

x

x

neem oilO

Trilogy, EcoWorks EC, Rango

BM1

3

 

 

 

x

thyme oilO

Huma Gro Promax, Slam Org

BM1

3

 

 

 

x

Bacillus amyloliquefaciens strain D747O

Double Nickel 55, Triathlon BA

BM2

5-7

x

x

 

 

Bacillus subtilis strain QST 713O

Serenade ASO, Serenade Max, Serenade Opti WP

BM2

7

x

x

 

 

Clonostachys rosea strain J1446O

Lalstop G46 WG

BM2

5-7

 

 

 

x

Pseudomonas chlororaphis strain AFS009O

Zio

BM2

7-14

 

 

 

x

Streptomyces lydicus WYEC 108O

Actinovate

BM2

7

 

 

 

x

Streptomyces sp. strain K61O

Lalstop K61 WP

BM2

7

 

 

 

x

basic copper sulfateO

Basic Copper 53, Cuprofix Ultra 40 Disperss, Cuproxat FL

M1

7

x

 

 

 

copper hydroxideO

Champ Dry Prill, Champ Formula 2 Flowable, Champ WG, ChampION++, Kalmor, Kocide 2000, Kocide 3000, Kocide 50DF, Nu-Cop 30 HB, Nu-Cop 50 DF, Nu-Cop HB, Previsto

M1

7

x

 

 

 

copper octanoate

Camelot O, Cueva, Grotto

M1

10

x

 

x

 

copper oxychloride

Badge SC, Badge X2, C-O-C-S WDG

M1

7

x

 

 

 

copper sulfate pentahydrate

CS 2005, ET-F

M1

7

x

 

 

 

MasterCop

x

 

x

x

hydrogen peroxide

OxiDate 2.0

NC

7

 

 

x

 

Jet-Ag, Jet-Ag 5%, TerraClean 5.0

 

 

 

x

OxiDate 5.0

x

 

x

 

potassium bicarbonateO

Carb-O-Nator

NC

5-7

x

 

 

 

sodium tetraborohydrate decahydrate

Prev-AM, Prev-AM Ultra

NC

10-14

x

 

 

 

Ulocladium oudemansii strain U3O

BotryStop

NC

7

 

x

 

 

mono- and dipotassium salts of phosphorous acidO

OxiPhos

P7

1-3 wks

 

 

x

 

K-Phite 7LP

x

 

 

x

Note: All products listed in this table are registered trademarks. The list is not all-inclusive, but provides examples of products that are registered for commercial use in Utah. Always review the product label for the specific crop you are treating, targeted pests, safety information, and preharvest intervals. All product information was sourced in 2023 from the TELUS Agronomy Label Database.
O = Organic Active Ingredient