Onions

Teagasc Horticulture Portal

Last updated: 30/07/2025

Diseases

Disease Active Product Name PCS No Max Individual Dose Max Total Dose Max No Applications Harvest Interval Use By Date Actions
Downy Mildew azoxystrobin Zoxis
Label
05348 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew oxathiapiprolin Zorvec Enicade
Label
05608 0.2 l/ha 0.6 l/ha 3 per crop 1 wk
Downy Mildew oxathiapiprolin, benthiavalicarb Zorvec Endavia
Label
06222 0.5 l/ha 1.5 l/ha 3 per crop 4 wk 13-Dec-24
Downy Mildew azoxystrobin Tazer
Label
05530 1.0 l/ha 3.0 l/ha - 2 wk
Botrytis cyprodinil, fludioxonil Switch
Label
EAMU
06414 1.0 kg/ha 3.0 kg/ha 3 per crop 3 wk
Botrytis bacillus amyloliquefaciens str. qst 713 Serenade ASO
Label
EAMU
03847 8 l/ha 48 l/ha 6 0 days
Downy Mildew azoxystrobin Roubaix
Label
06720 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew mandipropamid Revus
Label
EAMU
05154 0.6 l/ha 2.4 l/ha 4 per crop 2 wk
Downy Mildew azoxystrobin Pantha
Label
06445 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Oxe
Label
06463 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew fluopicolide, propamocarb Infinito
Label
EAMU
04309 1.6 l/ha 1.6 l/ha 1 per crop 1 wk
Downy Mildew azoxystrobin Hill-Star
Label
EAMU
06809 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Globaztar SC
Label
05529 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Globaztar AZT 250 SC
Label
07114 1.0 l/ha 3.0 l/ha - 2 wk
Botrytis prothioconazole, fluoxastrobin Fandango
Label
EAMU
03787 1.25 l/ha 5.0 l/ha 4 per crop
Downy Mildew prothioconazole, fluoxastrobin Fandango
Label
EAMU
03787 1.25 l/ha 5.0 l/ha 4 per crop
Botrytis cyprodinil, fludioxonil Clayton Gear
Label EAMU
06607 1.0 kg/ha 3.0 kg/ha 3 per crop 3 wk
Downy Mildew azoxystrobin Clayton Augusta
Label
06635 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Chamane
Label
05002 1.0 l/ha 3.0 l/ha - 2 wk
Botrytis fludioxonil, cyprodinil Botrefin
Label EAMU
06480 1.0 kg/ha 3.0 kg/ha 3 per crop 3 wk
Downy Mildew azoxystrobin Azoxystar
Label
05534 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Azoshy
Label
05618 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Azofin
Label
06637 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin Azarius
Label
06522 1.0 l/ha 3.0 l/ha - 2 wk
Downy Mildew azoxystrobin AZ-TEC
Label
06036 1.0 l/ha 3.0 l/ha - 2 wk 30-Jun-26
Neck Rot bacillus amyloliquefaciens subsp. plantarum d747 Amylo-X WG
Label
EAMU
06311 2.5 kg/ha 15 kg/ha 6 per year
Downy Mildew azoxystrobin, difenoconazole Amistar Top
Label
EAMU
04582 1.0 l/ha 1.0 l/ha - 2 wk
Downy Mildew azoxystrobin Amistar
Label
05072 1.0 l/ha 3.0 l/ha - 2 wk
Powdery Mildew aq ext. germinated seeds of sweet lupinus albus PROBLAD
06811 3.2 l/ha 6.4 l/ha 2 per crop -
Rust aq ext. germinated seeds of sweet lupinus albus PROBLAD
06811 3.2 l/ha 6.4 l/ha 2 per crop -

Pests

Pest Active Product Name PCS No Max Individual Dose Max Total Dose Max No Applications Harvest Interval Use By Date Actions
Thrips spinosad Tracer
Label
02649 200 ml/ha 600 ml/ha 3 per crop 1 wk
Thrips fatty acid - c7 - c18 - potassium salt Tec-Bom
Label
EAMU
05040 5.75 l/ha 51.75 l/ha 9 per crop -
Slugs ferric phosphate Sluxx HP
Label
05557 7.0 kg/ha 28.0 kg/ha -
Cutworm lambda-cyhalothrin Ninja 10CS
Label EAMU
05178 75 mls/ha 225 mls/ha 3 3 wk
Eelworm garlic extract NEMGuard DE
Label EAMU
05368 20 kg/ha 20 kg/ha 1 per crop
Thrips metarhizium anisoplice - st bipesco 5/f52 LALGUARD M52 OD
Label
05859 1.25 l/ha 7.5 l/ha 6 per crop 4 hours
Cutworm lambda-cyhalothrin Karate Zeon
Label
EAMU
04084 75 mls/ha 225 mls/ha 3 per crop 3 wk
Slugs ferric phosphate Ironclad
Label
06420 7 kg/ha 28 kg/ha -
Thrips fatty acid - c7-c20 FLiPPER
Label
EAMU
05027 5.0 l/ha 45.0 l/ha 9 per crop
Thrips deltamethrin Decis Protech
Label
EAMU
05269 500 ml/ha 1.0 l/ha 2 per crop 1 wk
Thrips spinosad Clayton Relic
Label
06841 200 ml/ha 600 ml/ha 3 per crop 1 wk
Onion Fly cyantraniliprole Benevia 10 OD
Label
05354 0.75 l/ha 1.5 l/ha 2 per crop 2 wk
Thrips cyantraniliprole Benevia 10 OD
Label
05354 0.75 l/ha 1.5 l/ha 2 per crop 2 wk
Slugs metaldehyde Axcela
Label
04839 7.0 kg/ha 21.0 kg/ha 3 per crop/year
Thrips beauveria bassiana gha / atcc 74040 Botanigard OD
06787 1.25 l/ha 31.25 l/ha 25 per crop 1 day
Thrips spinosad Cerami
07069 200 ml/ha 600 ml/ha 3 per crop 1 wk
Aphid spirotetramat Clayton Occupy
Label
06899 0.5 l/ha 2.0 l/ha 4 per crop 1 wk
Wireworm cypermethrin Columbo 0.8 MG
Label
06716 12 kg/ha 12 kg/ha 1
Cutworm cypermethrin Columbo 0.8 MG
Label
06716 12 kg/ha 12 kg/ha 1
Aphid spirotetramat Movento
Label
EAMU
05349 0.5 l/ha 2.0 l/ha 4 per crop 1 wk
Thrips spinosad Spanner
Label
06922 200 ml/ha 600 ml/ha 3 per crop 1 wk
Aphid lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk
Cutworm lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk
Caterpillar lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk
Flea Beetle lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk
Leaf Miner lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk
Whitefly lambda-cyhalothrin Stealth
Label
06468 75 mls/ha 225 mls/ha 3 per crop 3 wk

Weeds

Weed Active Product Name PCS No Max Individual Dose Max Total Dose Max No Applications Harvest Interval Use By Date Actions
Annuals dimethenamid-p, pendimethalin Wing P
Label
EAMU
03590 4.0 l/ha 4.0 l/ha -
Grasses cycloxydim Stratos Ultra
Label
04936 4.0 l/ha 4.0 l/ha 1 per crop 4 weeks
Annuals pendimethalin Stomp Aqua
Label
03750 2.9 l/ha 2.9 l/ha 1 / crop
Annuals fluroxypyr Starane Hi-Load HL
Label
EAMU
04549 0.3 l/ha 0.3 l/ha
Grasses fluazifop-p (-butyl) Phantom
Label
06380 3.0 l/ha 3.0 l/ha 1 per crop 4 wk
Annuals clopyralid Lontrel 600
Label
EAMU
04914 0.33 l/ha 0.5 l/ha - 6 weeks
Annuals pyridate Lentagran WP
Label
05580 2.0 kg/ha 2.0 kg/ha 1 per crop
Grasses propaquizafop Kalamos
06842 1.5 l/ha 1.5 l/ha 1 per crop 30 days
Grasses fluazifop-p (-butyl) Fusilade Max
Label
05073 3.0 l/ha 3.0 l/ha 1 per crop 4 wk
Annuals isoxaben Flexidor
Label
EAMU
04963 0.2 l/ha 0.2 l/ha 1 per year
Grasses propaquizafop Falcon
Label
04740 1.5 l/ha 1.5 l/ha 1 per crop 30 days
Annuals aclonifen Emerger
Label
EAMU
06190 2.5 l/ha 2.5 l/ha 2 per crop
Annuals prosulfocarb Defy
Label
EAMU
04277 5.0 l/ha 5.0 l/ha -
Annuals prosulfocarb Crozier
Label EAMU
06482 5.0 l/ha 5.0 l/ha -
Grasses propaquizafop Claw 100
Label
05874 1.5 l/ha 1.5 l/ha 1 per crop 30 days
Grasses clethodim Centurion Max
Label
EAMU
04948 2.0 l/ha 2.0 l/ha - 8 wk
Annuals bentazone Basagran SG
Label
EAMU
05192 1.1 kg/ha 1.1 kg/ha - 3 wk
Annuals pendimethalin Anthem
Label
04761 3.3 l/ha 3.3 l/ha
Annuals aclonifen Chanon
Label
06518 2.5 l/ha 2.5 l/ha 2 per crop
Annuals prosulfocarb Clayton Heed
Label
06487 5.0 l/ha 5.0 l/ha -
Annuals aclonifen Clayton Klondike
Label
06807 2.5 l/ha 2.5 l/ha 2 per crop
Annuals pendimethalin Clayton Stream
07405 2.9 l/ha 2.9 l/ha 1 per crop
Annuals aclonifen Clever
Label
06399 2.5 l/ha 2.5 l/ha 2 per crop
Annuals prosulfocarb FANTASIA
Label
06952 5.0 l/ha 5.0 l/ha -
Annuals prosulfocarb LEES
Label
06732 5.0 l/ha 5.0 l/ha -
Annuals aclonifen Ostrich
Label
06907 2.5 l/ha 2.5 l/ha 2 per crop
Annuals pendimethalin PDM 330 EC
Label
EAMU
03582 4.0 l/ha 4.0 l/ha 1
Annuals prosulfocarb Peloton
Label
06481 5.0 l/ha 5.0 l/ha -
Annuals pendimethalin Pendifin 400 SC
Label
05731 3.3 l/ha 3.3 l/ha 1 per crop
Annuals prosulfocarb Professional
Label
06262 5.0 l/ha 5.0 l/ha -
Annuals prosulfocarb Roxy 800 EC
Label
05739 5.0 l/ha 5.0 l/ha -
Annuals pendimethalin Sharpen 40% SC
04847 3.3 l/ha 3.3 l/ha 1 per crop

Other Products

Function Active Product Name PCS No Max Individual Dose Max Total Dose Max No Applications Harvest Interval Use By Date Actions
Growth Regulator maleic hydrazide Fazor Star
Label
03729 4.0 kgs/ha 4.0 kgs/ha 1 1 wk 30-Sep-26
Growth Regulator maleic hydrazide Fazor Flo
07085 8.9 l/ha 8.9 l/ha 1 per crop 2 wk
Growth Regulator maleic hydrazide Fazor Star
06018 4.0 kgs/ha 4.0 kgs/ha 1 per crop 1 wk
Growth Regulator maleic hydrazide ITCAN SL 270
Label
06071 8.9 l/ha 8.9 l/ha 1 per crop 4 days