• Our Research
    • Research Strategy
    • Research Sites
    • Current Research Projects
    • Research Results
    • Research Collaborations
    • Research Resources
    • Seed Industry Research Centre
    Current Research
    Current Research
    Research Results
    Research Results
  • Resources
    • Biosecurity
    • Crop Action
    • Nutrient Management
    • Maize
    • Templates and Calculators
    • Cereals
    • Weeds
    • Pests
    • Seeds
    • Diseases
    • News
    • Environment
    • Soil
    • Schools
    Podcast
    Podcast
    Environment and Compliance
    Environment and Compliance
  • Levies & Returns
    • Arable Crops Levy
    • Maize Levy
    • Cereal Silage Levy
    • Farmer Annual Return Form
    • Wholesaler Annual Return Form
    Levies
    Levies
    Annual Returns
    Annual Returns
  • Events
  • News
  • About Us
    • Governance and growers
    • Business Strategy
    • Our People
    • Careers
    • Growers Leading Change
    • Women in Arable
    • Arable Ys
    • Arable Kids
    • Arable Research Groups (ARGs)
    Our People
    Our People
    Growers Leading Change
    Growers Leading Change
  • Ask FAR AI
  • Weather
  • Log In
Ask FAR AI
Weather
Log In
  • Homepage
  • Resources
  • Terbufos Prothiofos Methamidophos Fenamiphos Withdrawal

Terbufos, prothiofos, methamidophos, fenamiphos withdrawal

The Environmental Protection Authority (EPA), has revoked the approvals for terbufos, prothiofos, methamidophos, fenamiphos.

The Environmental Protection Authority (EPA), has revoked the approvals for terbufos, prothiofos, methamidophos, fenamiphos and issued disposal notices for any pesticides containing these active ingredients.

This means no one may import, manufacture, use or store pesticides containing the revoked substances. They must be disposed of.

For further information see Gazette notices outlining compliance obligations.

Gazette Notice for Fenamiphos-Containing and Methamidophos-Containing Substances

Gazette Notice for Terbufos-Containing and Prothiofos-Containing Substances

Failure to comply may be an offence under section 109 of the Hazardous Substances and New Organisms Act 1996 (HSNO Act).

Deadlines for Substances containing prothiofos or terbufos

  • Since 1 July 2023, you must have ceased the import or manufacture of pesticides containing prothiofos or terbufos.
  • From 1 August 2023, you must not use pesticides containing prothiofos or terbufos
  • By 1 December 2023, any stock of these pesticides must be disposed of.

Pesticide

HSNO approval number

Granular product containing 200g/kg terbufos

HSR000216

Emulsifiable concentrate containing 500g/litre prothiofos

HSR000200

Related Resources

13 September 2025

Black-grass update

Growers are reminded to report any grass weeds that appear unfamiliar or could resemble black-grass (Alopecurus myosuroides). Early reporting remains one of our strongest tools for protecting the industry.

Read more
13 September 2025

From the Ground Up Spring 2025

Welcome to the spring 2025 edition of From the Ground Up

Read more
13 September 2025

FAR Board Vacancies

The FAR Nominations and Remunerations Committee (NRC) is calling for nominations to fill four grower director positions on the FAR Board from 1 January 2026. 

Read more
13 September 2025

Extra 142 Nutrient management for autumn sown crops after a wet winter

Following a very wet winter, FAR has received a number of requests for information around managing yellow autumn sown crops. This Arable Extra outlines ways to distinguish between nitrogen and sulphur deficiencies and provides some information to support decision making around crop management.

Read more
13 September 2025

Extra 141 Options for replanting milling wheat (2025)

Wet conditions throughout winter 2025 have created challenges for growers across Canterbury. This Arable Extra addresses issues around 1) autumn sown wheat paddocks with drowned out patches and 2) considerations around sowing autumn milling wheat seed in the spring.

Read more
13 September 2025

Cereals update 231: Do T0 fungicides add financial value? Ten years of research says 'no'.

This Arable Update summarises yield and profitability results from 47 FAR trials since 2013, comparing programmes with and without a T0, to help guide your decision-making.

Read more
13 September 2025

AIMI New Zealand survey of cereals areas and volumes: 1 July 2025

The AIMI survey of New Zealand cereal growers, as at 1 July, 2024 is now available online.

Read more
13 September 2025

Guidelines for grower travel applications

FAR levy payers can apply for a grant to attend international industry-related conferences/workshops/events, etc. Find the guidelines here. 

Read more
13 September 2025

2024-25 Spring sown CPT book

This book outlines trial-specific yields and individual cultivar disease ratings for spring sown wheat and barley cultivars included in the 2024-2025 CPT trials.

Read more
13 September 2025

Chlorpyrifos approvals revoked

The EPA decision-making committee has determined that the risks associated with the use of chlorpyrifos outweigh the benefits.

Read more

Ask FAR AI

Discover the power of AI with Ask FAR. Our new intelligent tool provides instant, accurate answers to your questions by searching the vast resources on the FAR website and linking you to the original document for further information. It’s fast, easy and reliable.

Start Chatting
  • Research
  • Levies and Returns
  • Resources
  • Events
  • News
  • Contact Us
  • Schools
  • About Us
  • Privacy Policy
  • Terms of use

©2022 Foundation for Arable Research