Herbicides

Chemical or biological agents used to control, prevent, or destroy unwanted plants (weeds), subject to registration, maximum residue limits (MRLs), and environmental safety assessments.

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Last updated

15 May 2026, 16:18

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Latest Herbicides developments

Source-backed regulatory and guidance signals tracked by Foresight, with the newest developments first.

Vermont Legislature Passes Paraquat Herbicide Ban Bill H.739

The Vermont Legislature has passed Bill H.739, which would largely ban the sale and use of paraquat herbicides statewide from November 2026, with only narrow, time-limited exemptions under permits issued by the Secretary of Agriculture. Growers, pesticide distributors, and agribusinesses using paraquat in Vermont should now plan for a transition to alternative weed-control strategies and products ahead of the 2026 ban and the planned phase-out of any permitted uses by 2030.

legislature.vermont.govUnited StatesUnited States

Vermont House Sets Paraquat Herbicide Ban Bill H.739 On Action Calendar

The Vermont House has scheduled Senate-amended paraquat herbicide ban bill H.739 for Action Calendar consideration on 13 May 2026, following prior House and Senate passage and signalling imminent floor action. If enacted, the bill would phase out most paraquat sales and uses in Vermont from 1 November 2026, allow only tightly controlled orchard permits until 2030, and require reporting and an alternatives study, so agrochemical suppliers and growers should plan for substitution and monitor the final House vote and governor’s decision.

legiscan.comUnited StatesUnited States

Vermont Senate Passes H.739 To Prohibit Paraquat Herbicide Use And Sale

In May 2026, the Vermont Senate advanced bill H.739, which would largely prohibit the sale and use of the herbicide paraquat in the State, with only narrow, time-limited exemptions for certain orchard uses. While not yet enacted, the bill’s defined phase-out dates and tight permit conditions signal a likely end to paraquat use in Vermont from late 2026, giving agricultural and agrochemical businesses a short window to plan alternatives, adjust supply chains, and monitor for final passage.

legislature.vermont.govUnited StatesUnited States

EU EFSA Opinion Confirms Cotton-Seed Isoxaben MRL And Supports Lower MRLs For Herbal Infusions And Hops

EFSA has completed its assessment of isoxaben confirmatory data under the EU MRL Regulation, confirming the cotton-seed MRL at 0.01 mg/kg and supporting lower MRLs for certain herbal infusions and hops at the analytical limit of quantification. These findings indicate a no-residue situation and very low dietary exposure, signalling likely future tightening of EU MRLs for isoxaben in these commodities but no new consumer risk concerns for current uses.

efsa.onlinelibrary.wiley.comEuropean UnionEuropean Union

Illinois Senate Agriculture Committee Schedules Hearing on SB 3161 Paraquat Ban Bill

Illinois is considering a statewide ban on paraquat, with the Senate Agriculture Committee holding a subject-matter hearing on SB 3161 on 30 April 2026. If enacted, this bill would force pesticide manufacturers, distributors and agricultural users to phase out paraquat-containing products in Illinois and comply with new reporting and rulemaking-based controls from 1 January 2027.

ilga.govUnited StatesUnited States

Vermont Senate Committees Advance H.739 Paraquat Herbicide Ban Bill

Vermont’s paraquat herbicide ban bill H.739 has cleared key Senate committees and, if enacted, would prohibit almost all sale and use of paraquat statewide from November 2026 under a tightly controlled permit regime. Growers, distributors and applicators relying on paraquat will need to plan for substitution, manage short-term orchard-only permits through 2030, and prepare for new reporting and transition requirements as the bill advances toward final passage.

legislature.vermont.govUnited StatesUnited States

Vermont Senate Agriculture Committee Issues Favourable Report With Proposed Amendment on Paraquat Herbicide Ban Bill H.739

Vermont's paraquat herbicide ban bill H.739 advanced in late April 2026 when the Senate Agriculture Committee issued a favourable report with a proposed amendment and moved the bill to second reading and Appropriations review. If enacted, this would force manufacturers, distributors, and growers in Vermont to phase out paraquat-based herbicides and plan alternative weed-control strategies as the Senate finalises the bill's scope and timing.

legislature.vermont.govUnited StatesUnited States

Vermont Senate Committee Backs Paraquat Herbicide Ban Bill H.739

Vermont lawmakers are advancing House Bill H.739, which would ban the sale and use of paraquat herbicides statewide from November 2026 with only narrow, time-limited exemptions for fruit orchards. If enacted, this would force farmers, applicators, and suppliers to phase out paraquat, invest quickly in alternative weed-control strategies, and plan around a 2030 sunset for any remaining permitted uses.

legislature.vermont.govUnited StatesUnited States

EFSA Starts Peer Review Intake for Pinoxaden Renewal (AIR VI)

In April 2026 EFSA formally opened the AIR VI peer review intake for renewal of the herbicide active substance pinoxaden under the EU plant protection products framework, following earlier consultation and admissibility steps. This starts a new scientific risk assessment that could later tighten, maintain, or revoke EU approval and use conditions for pinoxaden-based cereal herbicides, so registrants and growers should monitor the outcome for future changes to authorisations and risk management requirements.

open.efsa.europa.euEuropean UnionEuropean Union

Minnesota Senate Committee Advances SF5073 Agriculture Omnibus Bill to Finance

In April 2026, a Minnesota Senate committee adopted the 1st Engrossment of SF5073, advancing an agriculture omnibus bill that funds PFAS-reducing fibre packaging work, tightens seed potato and hemp frameworks, and mandates a paraquat use and supply-chain report by 2029. If enacted, the bill would redirect state support toward lower-PFAS packaging and agroforestry, strengthen seed and food-handling oversight, and lay groundwork for potential future action on paraquat and nutrient management, but it does not yet change private-sector compliance obligations.

revisor.mn.govUnited StatesUnited States

US District Court Vacates 2020 Dicamba Registrations for XtendiMax, Enginia and Tavium

In February 2024, the US District Court for the District of Arizona vacated the US Environmental Protection Agency’s 2020 registrations for the over-the-top dicamba herbicides XtendiMax, Enginia and Tavium after finding serious procedural and analytical violations of FIFRA, the Endangered Species Act and the Administrative Procedure Act. This ruling effectively nullified those labels and signals that any future dicamba and similar high-risk pesticide registrations must meet stricter notice-and-comment, ESA consultation and evidence standards, which remains important context when assessing current dicamba use strategies and regulatory risk.

govinfo.govUnited StatesUnited States

GB CLP Agency Recommends Updated Classification for Clethodim

In March 2026, the GB CLP Agency issued a technical report recommending stronger mandatory classification and labelling for the herbicide clethodim under the GB CLP Regulation. If adopted, this will add self-reactive and repeated-exposure organ toxicity classes and upgrade clethodim’s aquatic hazard, tightening labelling and risk management obligations for GB formulators and users of products containing this active substance.

hse.gov.ukUnited KingdomUnited Kingdom

Minnesota SF 5073 Omnibus Amendment Proposes Paraquat Sale And Use Ban

Minnesota’s omnibus agriculture finance bill SF 5073 now carries an A1 amendment that would add a new pesticide statute banning the sale of paraquat dichloride products from 1 January 2028 and their use from 1 January 2029, with only narrowly defined emergency exemptions. If enacted, this would effectively phase paraquat out of Minnesota’s pesticide market, forcing growers, applicators, and suppliers to transition to alternatives and signalling how targeted substance bans can be folded into broader budget vehicles in other states.

assets.senate.mnUnited StatesUnited States

Vermont Bill H.739 To Ban Paraquat Advances To Senate Agriculture Committee

Vermont legislators are advancing House Bill H.739, which would prohibit the use and sale of paraquat herbicide statewide and has now moved from the House to the Senate Agriculture Committee. If enacted, this would effectively remove paraquat-based products from the Vermont market, forcing growers, distributors, and retailers that rely on paraquat to shift to alternative herbicides and adjust weed-control strategies.

legislature.vermont.govUnited StatesUnited States

SPRINT Study Finds Widespread Human And Animal Exposure To Glyphosate And AMPA In Europe And Argentina

A major EU-funded study published in April 2026 demonstrates that human and animal exposure to glyphosate is significantly more widespread than previously estimated using standard monitoring methods. This evidence of ubiquitous exposure is likely to drive more conservative regulatory risk assessments and intensify pressure for stricter usage restrictions or phase-outs of glyphosate-based products.

sprint-h2020.euEuropean UnionEuropean UnionArgentinaArgentinaSpainSpainFranceFranceNetherlandsNetherlandsPortugalPortugalCroatiaCroatiaCzechiaCzechia

US District Court (N.D. California) Grants Remand, Denies Fees in Roundup Case Surette v. Monsanto

A US District Court has remanded a Roundup product liability case to California state court, affirming that claims against local distributors can prevent federal jurisdiction. This decision reinforces the risk of fragmented state-level litigation for chemical manufacturers, complicating defense strategies and potentially increasing liability exposure across the supply chain.

govinfo.govUnited StatesUnited States

Global Public Health Experts Issue Seattle Statement Urging Stricter Glyphosate Regulation

Global health experts have issued the Seattle Statement calling for the phase-out or stricter regulation of glyphosate due to systemic health risks. This consensus intensifies pressure on regulators to overhaul pesticide risk assessments and signals significant long-term litigation and market access risks for glyphosate-based products.

deohs.washington.eduGlobalGlobalUnited StatesUnited States

Sweden (KemI) Approves New Plant Protection Products and Updates Conditions (Q1 2026)

Sweden has finalized Q1 2026 plant protection product decisions, introducing ten new approvals and initiating phase-outs for specific fenpropidin-based registrations. Operators must transition to new ATP 22-compliant labeling by May 2026 and clear existing stocks of legacy-registered products before the end-of-May use-up deadline.

kemi.seSwedenSweden

EFSA Peer Review of Isoxaflutole Endocrine-Disruptor Confirmatory Data Under Regulation 844/2012

EFSA has commenced a peer review of confirmatory endocrine-disrupting data for isoxaflutole following the receipt of a new evaluation report. The findings will be decisive for the substance's continued EU market access, as confirmed endocrine-disrupting properties typically trigger non-renewal or severe restrictions.

open.efsa.europa.euEuropean UnionEuropean Union

EU EFSA Opens Peer Review of Pesticide Active Substance Tri-allate

EFSA has launched the peer review for the renewal of the herbicide Tri-allate following the submission of the assessment report in March 2026. This evaluation is a critical milestone that will dictate future market access and potential use restrictions for Tri-allate-based products in the EU.

open.efsa.europa.euEuropean UnionEuropean Union

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Topic context

How to read Herbicides regulatory activity

Definition

What is Herbicides?

Chemical or biological agents used to control, prevent, or destroy unwanted plants (weeds), subject to registration, maximum residue limits (MRLs), and environmental safety assessments.

Industry relevance

Why it matters

Herbicides developments can change product scope, supplier expectations, market access, reporting duties, and risk ownership. Foresight tracks the signals early so teams can respond before obligations become urgent.

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