Table 3. Fungicides currently approved (April 2013) for disease control on protected herbs

Active ingredient(s)

Pesticide Group

Product names

Approval type*

Harvest interval
(and notes on use)

Mode of action & examples of diseases controlled

Resistance issues

Ampelomyces quisqualis
strain AQ10
AQ10 EAMU 0 days Parasitic

Powdery mildews

Resistance not reported; assumed low risk
Azoxystrobin QoI Amistar
Cleancrop Celeb
Life Scientific Azoxystrobin
EAMU 28 days (Nov to Apr)
14 days (May to Oct)
Protectant and locally systemic

Eg Botrytis, powdery mildew, rusts, leaf spots, Sclerotinia

High risk; single-site inhibitor; resistance known in various fungal species; cross-resistance shown between all members of the QoI group.
Bacillus subtilis
strain QST 713
Serenade ASO EAMU 0 days Various

Eg Botrytis and powdery mildew

Resistance not reported
Boscalid + pyraclostrobin Carboxamide + QoI Signum EAMU 14 days Protectant and systemic

Eg Botrytis, powdery mildew, rusts, leaf spots, Sclerotinia

Boscalid: medium risk

Pyraclostrobin: high risk – see azoxystrobin

Coniothyrium minitans
strain CON/M/91-08
Contans WG On-label (all edible & non-edible crops) Not stated(incorporate before planting) Fungal antagonist


Resistance not reported
Copper oxychloride Inorganic salt (copper) Headland Inorganic Liquid Copper EAMU 14 days Broad spectrum protectant Low risk; multi-site inhibitor
Cyprodinil + fludioxonil Anilino-pyrimidine + Phenylpyrrole Switch EAMU 7 days Protectant

Eg Botrytis

Cyprodinil: medium risk, resistance in Botrytis known

Fludioxonil: medium risk, resistance found sporadically

Dimethomorph CAA Paraat EAMU 14 days Protectant

Downy mildews, root rots (Pythium and Phytophthora)

Low to medium risk
Fenhexamid Hydroxyanilide Agrovista Fenamid
EAMU 3 days Protectant


Low to medium risk
Fosetyl-aluminium + propamocarb hydrochloride Phosphonate + carbamate Previcur Energy EAMU 21 days Protectant and systemic

Eg damping-off diseases and downy mildews

Fosetyl-aluminium: low risk

Propamocarb hydrochloride: low-medium risk

Gliocladium catenulatum
strain J1446
Prestop Mix
(all edible crops)
0 days
(check EAMUs for drench, ground spray and soil incorporation uses)
Various including hyperparasitism

Botrytis, damping-off and root diseases

Resistance not reported
Iprodione Dicarboximide Rovral WG EAMU 14 days Protectant, some eradicant activity
Broad spectrum
Medium to high risk. Resistance common for Botrytis. Cross-resistance common
Mancozeb +metalaxyl-M Dithiocarbamate + Phenyl-amide Fubol Gold WG EAMU 35 days
(Rates vary with season)
Systemic and protectant

Eg Pythium and Phytophthora root rots, downy mildews

Mancozeb: low risk; multi-site inhibitor

Metalaxyl-M: high risk; single-site inhibitor. Resistance and cross-resistance known for oomycetes

Mandipropamid CAA Pergado Uni
Standon Mandor
On-label 7 days Protectant

Downy mildews, root rots (Pythium and Phytophthora)

Low to medium risk
Metalaxyl-M Phenyl-amide SL567A

Apron XL

EAMU 14 days
(only for use in Apr to Oct)

Seed treatment only


Eg Pythium and Phytophthora root rots, downy mildews

High risk; single-site inhibitor. Resistance and cross-resistance known for oomycetes
Potassium hydrogen carbonate Inorganic
Omex K50
Potassium hydrogen carbonate
Commodity Substance Approval 0 days Curative

Powdery mildews

Resistance not reported
Prochloraz DMI Scotts Octave EAMU 21 days Broad-spectrum protectant and eradicant Medium risk; cross-resistance can occur between DMI fungicides
Pyrimethanil Anilino-pyrimidine Scala EAMU 14 days Botrytis Medium risk. Resistance known in Botrytis
Sulphur Inorganic
Microthiol Special
Solfa WG
Thiovit Jet
EAMU 0 days Protectant

Powdery mildews

Low risk
Thiram Dithiocarbamate Agrochem Flowable Thiram On-label (for parsley seed only) Not stated
(seed dip before planting or production)
Broad spectrum protectant

Septoria leaf spot on parsley

Low risk: multi-site inhibitor

*EAMU: Extension of Authorisation for Minor Use


  • Every effort has been made to ensure that the information in these tables is complete and correct at the time of publishing. Defra, HDC and ADAS UK Ltd do not accept liability for any inaccuracy or liability for loss, damage or injury arising from use of products listed herein.
    Omission of a product does not necessarily mean that it is not approved and available for use.
    Similarly, not all products containing the active ingredients listed in this table are currently approved for use on all leafy herbs.
    No endorsement of named products is intended nor is any criticism implied of other alternative, but un-named products.
    The pesticide information in these tables has been collated using information from the website of the Chemicals Regulation Directorate ( and from suppliers’ labels and product manuals of pesticides approved under the Control of Pesticides Regulations 1986. Regular changes occur in the approval status of pesticides, arising from changes in the pesticide legislation or for other reasons. For the most up to date information, please check with a professional supplier or on the CRD website.
    It is essential to follow the instructions on the approved label or Extension of Authorisation for Minor Use (EAMU) sheet before handling, storing or using any pesticide. EAMU uses are made entirely at the risk of the user.