Call for information on synthetic pyrethroids

Our call for information closed on 1 March 2019. We are now reviewing and evaluating the information received.

We received around 520 responses to our call for information on the 11 synthetic pyrethroids and their use in New Zealand.

Background to this call for information

We recently determined that there are grounds to reassess 11 synthetic pyrethroid insecticides which are used in a variety of settings, including in agriculture, bed bug and flea treatments, and in household fly sprays and automatic dispensers.

Nine of the synthetic pyrethroids we are seeking information for are listed on the newly released priority chemicals list which are around 40 chemicals that we believe are most in need of review.

Read more about the Priority Chemicals List

We asked for information on products containing any of the 11 synthetic pyrethroids, which are available in off-the-shelf products for use in the home and garden, and products used professionally in the agriculture and commercial sectors (for example in crop protection products, timber treatments, and veterinary medicines).

Information we were looking for

Responding to this call for information was voluntary. We appreciate the information industry and users provided us with on the current use, practices, and benefits of these synthetic pyrethroids.

We will review the current uses of these substances and undertake an assessment of those uses. There will be an opportunity for interested parties to make formal submissions on our assessment and proposal, when the application is publicly notified.

The synthetic pyrethroid insecticides we sought information on are: 

  • Bifenthrin
  • Bioresmethrin
  • Cyfluthrin
  • Cyhalothrin
  • Cyhalothrin, lambda
  • Cypermethrin
  • Cypermethrin, alpha
  • Deltamethrin
  • Permethrin
  • Fenvalerate
  • Tetramethrin

There are application documents for the grounds to reassess these synthetic pyrethroids.

Read the grounds for reassessment documents