When UK fresh foods are in season along with their corresponding residual pesticide levels

A list of pesticides used in food production along with their associated risks

Below is a practical, evidence‑based list of pesticides used in food production. For each one you’ll also see the typical food or crop uses and the associated health risks they’ve been linked to in scientific or regulatory literature.

See also the post ‘When UK fresh foods are in season along with their residual pesticide levels’

Herbicides

1) Glyphosate

  • Used on (typical foods/crops): broad‑spectrum weed control pre‑sowing and between rows in cereals, oilseeds, maize, sugar beet; non‑selective use in orchards and non‑crop areas. EU approval renewed to 15 Dec 2033 with restrictions (desiccation for harvest timing is not permitted).
  • Potential health links: IARC classifies as “probably carcinogenic to humans” (Group 2A) based on limited human and sufficient animal evidence; mechanistic evidence includes genotoxicity and oxidative stress. Other authorities (EFSA/ECHA/EC) did not identify “critical areas of concern” for renewal under current conditions of use.
  • Status note (EU/UK): EU approval renewed in 2023 with specific mitigation measures; Member States decide product uses.

2) 2,4‑D (phenoxy herbicide)

  • Used on: cereals (wheat, barley, oats), maize and grassland; targets broad‑leaf weeds.
  • Potential health links: IARC Group 2B (“possibly carcinogenic”); mechanisms include oxidative stress and immunosuppression; regulators (EFSA, EPA, Health Canada) generally judge cancer risk as not supported at approved uses.
  • Status note: Approved in EU/GB with conditions; monitored via MRLs.

3) Pendimethalin

  • Used on: cereals, potatoes, beans/peas, carrots, onions, soy, rice; pre‑emergence control of annual grasses/broadleaf weeds.
  • Potential health links: endocrine‑disruptor flag in hazard listings; ecotoxic for fish; JMPR ADI 0–0.1 mg/kg bw; ARfD 1 mg/kg bw.
  • Status note: Approved in EU/GB with risk‑mitigation measures on labels.

4) Paraquat (bipyridyl herbicide – non‑food use in EU/UK)

  • Used on (globally): non‑selective burn‑down in many crops; not authorised in EU/UK (ban).
  • Potential health links: highly acutely toxic; ingestion causes multi‑organ failure with progressive pulmonary fibrosis; mortality is high even with treatment.
  • Status note: Banned across the EU (and GB) for over a decade; post‑ban surveillance (e.g., Ireland) shows sharp drops in poisonings/fatalities.

Insecticides

5) Imidacloprid (neonicotinoid)

  • Used on: historically on potatoes, cereals, fruits, leafy veg and seed treatments; also in horticulture (and veterinary flea products). Many field uses are severely restricted/banned in the EU because of bee risks, but residues can occur via allowed/third‑country uses.
  • Potential health links: neurotoxic to insects; hazard profiles flag acute mammalian and avian toxicity and high bee toxicity; water guidance values exist in several jurisdictions.
  • Status note: EU has restrictions on outdoor uses (bee protection); other regions allow targeted uses.

6) Lambda‑cyhalothrin (pyrethroid)

  • Used on: cereals, oilseed rape, potatoes, vegetables, fruits (also greenhouse); import tolerances exist e.g., for avocados.
  • Potential health links: transient skin paresthesia; pyrethroids show neurotoxic effects; high toxicity to aquatic organisms and bees; EFSA consumer risk “unlikely” for certain uses/import tolerances but notes data gaps on sterilisation by‑products.
  • Status note: Approved in EU/GB with mitigation (e.g., drift reduction, timing outside bloom).

7) Cypermethrins (incl. alpha‑/zeta‑isomers; pyrethroids)

  • Used on: cereals, potatoes, oilseed rape, lettuces, greenhouse cucumbers/courgettes; many fruits/veg carry MRLs; some proposed EU MRL reductions would affect a wide list (citrus, apples/pears, berries, tomatoes, peppers, beans/peas, leafy veg, etc.).
  • Potential health links: pyrethroids are neurotoxic; environmental concerns for aquatic organisms, non‑target arthropods and bees; EFSA has set mitigation options.
  • Status note: Approved in EU/GB with restrictions; MRLs under review.

8) Malathion (organophosphate)

  • Used on: broad‑spectrum control in fruits/veg, stored products and public‑health vector control in some regions.
  • Potential health links: IARC Group 2A (“probably carcinogenic”); cholinesterase inhibitor (neurotoxicity); EFSA has reviewed confirmatory data for consumer and bird risks.
  • Status note: Approved in EU until 31 Jul 2026 (subject to national authorisations); not approved in GB for plant protection.

9) Chlorpyrifos / Chlorpyrifos‑methyl (organophosphates – banned for food uses in EU/UK)

  • Used on (historically): citrus, pome fruit, stone fruit, bananas, vegetables, cereals, and post‑harvest uses for stored grain (‑methyl).
  • Potential health links: EU non‑renewal followed EFSA’s concerns over possible genotoxicity and developmental neurotoxicity (effects in children reported in epidemiological studies).
  • Status note: EU non‑renewal (2020) and US food tolerances revoked; residues may still appear on imports and are assessed/enforced against very low MRLs.

Fungicides

10) Captan

  • Used on: apples/pears (pome), cherries, berries, grapes; widely used protectant fungicide in orchards and soft fruit.
  • Potential health links: irritant; evolving classification reviews; EFSA issued a 2024 statement on environmental risk refinements and implications of updated classification.
  • Status note: EU approval renewed to 31 Oct 2039 with additional restrictions to protect pollinators and the environment.

11) Mancozeb (dithiocarbamate)

  • Used on (historically): potatoes, tomatoes, fruit and many veg for blight/mildew control.
  • Potential health links: concerns included reproductive toxicity classification and breakdown products (e.g., ETU).
  • Status note: EU non‑renewal (Dec 2020); ongoing legal/judicial developments but non‑renewal remains the operative measure; some Member States (e.g., France) plan to set national zero‑tolerance (LOQ) import MRLs in 2026.

12) Azoxystrobin (strobilurin)

  • Used on: very widely on cereals, grapes, hops and tropical fruits; recent EU decisions raised MRLs for papaya, chicory roots, hops and later melons/watermelons, aligned with consumer safety assessments.
  • Potential health links: JMPR set ADI 0.2 mg/kg bw; ARfD not necessary; consumer risk considered low at assessed uses.
  • Status note: Approved; frequent import tolerances/MRL updates.

13) Boscalid (carboxamide)

  • Used on: grapes, apples/pears, strawberries, brassicas, onions, beans/peas, carrots, and tree nuts (broad spectrum against Botrytis, Alternaria, mildews).
  • Potential health links: low acute mammalian toxicity; persistent in soil; JMPR/EFSA established ADI 0.04 mg/kg bw; consumer risk generally acceptable at authorised uses.
  • Status note: EU approval currently until 15 Apr 2026; authorised nationally for many crops.

14) Thiabendazole (benzimidazole)

  • Used on: post‑harvest on citrus and bananas, and mangoes, sweet potatoes, witloof; also seed treatment; common for mould/rot control in storage.
  • Potential health links: historic concerns included thyroid and developmental endpoints; EFSA/JMPR assessments support MRLs with no identified consumer risk at assessed uses.
  • Status note: MRLs revised/updated (e.g., for avocados, mangoes, sweet potatoes).

Other herbicides commonly found on salads/oilseeds

15) Propyzamide

  • Used on: lettuce (field/greenhouse) and winter oilseed rape (the latter translates into edible oils/animal feed).
  • Potential health links: EFSA peer reviews (2016; 2022 confirmatory data) addressed mammalian tox and residues; risk assessments underpin current approvals and MRLs.
  • Status note: EU approval maintained with confirmatory information assessed in 2022.

Where are residues most often found?

Patterns change year to year, but monitoring often finds residues on high‑input or multi‑spray crops such as citrus, apples/pears, table grapes, berries, tomatoes/peppers, leafy greens, and herbs. EFSA’s 2023 random‑sampling subset found pears (65%) and oranges (64%) most likely to contain multiple residues. UK rolling/quarterly reports highlight similar commodity focuses and trigger detailed risk assessments when needed.

How to reduce exposure

  • Legal limits (MRLs) are set with large safety margins and reflect good agricultural practice; they are not direct toxicity thresholds.
  • Washing/peeling reduces many residues; varying your fruit/veg spreads exposure. (General consumer advice reflected in EU/UK monitoring frameworks and risk communications.)
  • Organic products can still contain certain permitted substances (e.g., copper) or traces from the environment; they are also monitored against MRLs.

Sources & data you can check routinely

  • UK PRiF / HSE: quarterly and annual pesticide‑residue reports, incl. commodity‑specific findings.
  • EFSA Annual EU Report (2023 data): compliance rates by commodity, origin, and multi‑residue stats; interactive dashboards.
  • EU/GB authorisations & MRL registers to look up specific active substances and crops.

Other commonly encountered pesticides (but not listed above)

  • Chlormequat (PGR, cereals & mushrooms) – a growth regulator that’s been in the news because of oat and fungi residues and ongoing EU MRL adjustments (including proposals to revise animal‑product/fungi MRLs in 2026).
  • Acetamiprid (neonicotinoid still approved in the EU) – residues increasingly discussed for honey and oilseeds; the EU revised several acetamiprid MRLs in 2025, including for “honey and other apiculture products”.
  • Spinosad (spinosyn insecticide, sometimes used in organic IPM) – after EFSA introduced an ARfD, EU lowered MRLs for leafy veg/salad crops; still widely used but with tighter limits on certain commodities.
  • Spirotetramat (systemic “keto‑enol” insecticide) – common on fruit & veg (e.g., berries, citrus, coffee); JMPR sets residues as the sum of parent + enol metabolite, so it often shows up in lab reports even when parent degrades.
  • Fludioxonil (fungicide, post‑harvest/field) – frequent on berries and stored produce; EFSA has raised/adjusted MRLs for small fruits; PPDB profiles it as broadly used across fruit & veg.
  • Pyrimethanil (fungicide) – common on table grapes, garlic, honey, lettuce, leeks; several MRL increases/updates in recent years reflecting current GAPs.
  • Propamocarb (systemic fungicide) – relevant for lettuce, radishes, rucola and honey; EU raised some MRLs in 2024–2025 (and is set to lower lettuce), so it appears in monitoring and compliance discussions.
  • Prochloraz (imidazole fungicide; no longer approved in EU) – the EU reduced all MRLs to the LOD in 2024, so any finding above trace is an issue—still seen on some imports (e.g., exotic fruits, fungi).
  • Fosetyl‑Al / potassium phosphonates → phosphonic acid – residues are now regulated in the EU as “phosphonic acid and its salts” (not fosetyl itself). Expect phosphonic acid findings across many crops (incl. tea/coffee/nuts/honey) from plant protection and fertilizer/booster uses.

“Residue markers” you’ll often see (not always from pesticide use)

Copper compounds, bromide ion, and chlorate – among the most frequently quantified in EU monitoring. Copper is widely used in plant protection (incl. organic); bromide can derive from methyl bromide legacy or natural sources; chlorate often reflects sanitization/processing rather than field use. Ethylene oxide (not approved in the EU) still turns up occasionally, typically in imported spices/sesame or processed foods.

An interactive table – pesticides common names, other names or aliases and notes / context

Pesticide (ISO)Other names / aliasesNotes (salts/isomers)
2,4‑D2,4‑dichlorophenoxyacetic acid; 2,4‑PA; Aqualin; HedonalCommon salts: amine, choline, dimethylamine, ester forms
AcetamipridEthanimidamide; NI‑25Neonicotinoid
AzoxystrobinAzoxystrobine; ICI‑A 5504; ICIA 5504Strobilurin (QoI) fungicide
BentazoneBentazon
Beta‑cypermethrinBeta‑cipermetrin; CypermethrinbetaEnriched isomer fraction of cypermethrin
BoscalidNicobifen; BAS 510SDHI fungicide
CaptanCaptane; Captab; ENT 26538Phthalimide fungicide
CarbarylSevin; OMS 29; OMS 629; ENT 23969; NMCCarbamate insecticide
ChlormequatChlormequat chloride; AC 38555; 2‑chloroethyl‑trimethyl‑ammonium chloride; Chlorocholine chloridePlant growth regulator (PGR)
ChlorothalonilTPN (older code name); TetrachloroisophthalonitrileBroad‑spectrum fungicide
ChlorpyrifosDowco 179; Chlorpyriphos; Chlorpyrifos‑ethyl; ENT 27311Organophosphate; AChE inhibitor
CypermethrinCypermethrineMixture of isomers; beta‑cypermethrin is related enriched isomers
DeltamethrinDecamethrinPyrethroid insecticide
DiazinonDimpylateOrganophosphate insecticide
DiuronDCMUPhenylurea herbicide
FludioxonilFludioxonylPhenylpyrrole fungicide
Fosetyl‑aluminiumFosetyl; Efosite‑Al; EPAL; Aluminium phosethyl; Fosetyl‑AlDegrades to phosphonic acid
GlyphosateGlyphosate acid; Sulfosate; 2‑[(phosphonomethyl)amino]acetic acid; CP 67573Common salt forms: IPA, potassium, ammonium
ImazalilEnilconazole; ChloramizolRacemic mixture (two enantiomers)
ImidaclopridNeonicotinoid
Lambda‑cyhalothrinPP 321; (related isomer) gamma‑cyhalothrinOne enantiomeric pair from cyhalothrin
MalathionCarbophos; Maldison; Mercaptothion; CarbofosOrganophosphate; AChE inhibitor
MancozebManzebDithiocarbamate complex (Mn/Zn)
ParaquatMethyl viologen; Orthoparaquat; PP 910Usually as dichloride salt
PendimethalinPendimethaline; Penoxalin; Phenoxalin
ProchlorazAE B080109; Poraz(duplicate kept intentionally in case of sorting/filters)
ProchlorazAE B080109; PorazImidazole (conazole) fungicide
PropamocarbPropamocarb hydrochloride (common salt form)Carbamate fungicide (oomycetes)
PropyzamidePronamide
PyrimethanilZK 100309Anilinopyrimidine fungicide
SpinosadDE 105; BBF 05897; GF‑976Mixture of spinosyn A & D (fermentation metabolites)
SpirotetramatKeto‑enol insecticide; cis/trans stereoisomers
ThiabendazoleTiabendazole; TBZ; TebuzateBenzimidazole fungicide

References

UK government & agencies

UK HSE (authorisations, MRLs & databases)

EFSA (European Food Safety Authority) – annual reports & opinions

European Commission (DG SANTE) & EU Official Journal

EU MRLs / AGRINFO (European Commission platform)

IARC / WHO (hazard classifications)

University of Hertfordshire – PPDB (Pesticide Properties DataBase)

FAO/WHO JMPR and related

Chlorpyrifos / Regulatory & NGO documents

Paraquat (toxicology & regulation)

Azoxystrobin (uses & MRLs)

Captan (status & classification)

Mancozeb (non‑renewal & legal update)

Lambda‑cyhalothrin & cypermethrins

Imidacloprid (neonicotinoid)

Pendimethalin (herbicide)

Malathion (organophosphate)

Carbaryl (carbamate)

Glyphosate (additional context & commentary)

Propyzamide (lettuce & oilseed rape)

General risk communication

Absolutely—here are the references for the additional pesticides and residue markers I mentioned, grouped by topic. I’ve included the original URLs and a source tag after each item.

Monitoring context (what’s frequently detected)

Chlormequat (oats, fungi, carry‑over to animal products)

Acetamiprid (incl. honey & oilseeds)

Spinosad (spinosyn insecticide; salad/leafy veg MRL tightening)

Spirotetramat (systemic “keto‑enol” insecticide)

Fludioxonil (fungicide for small fruits, post‑harvest uses)

Pyrimethanil (fungicide; grapes, garlic, honey, leafy crops)

Propamocarb (fungicide; lettuce, radish, rucola, honey)

Prochloraz (no EU approval; all MRLs lowered to LOD)

Fosetyl‑Al / Potassium & Disodium phosphonates → Phosphonic acid (new EU residue definition)

Residue markers often reported (not always from field pesticide use)

UK monitoring

Christophe

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