On November 29th, the U.S. EPA Office of Pesticide Programs published the proposed interim decisions (PID) for eleven rodenticide active ingredients:
- Brodifacoum, Bromadiolone, Chlorophacinone, Difenacoum, Difethialone, Diphacinone, and Warfarin (see PID here)
- Cholecalciferol and Bromethalin (see PID here)
- Strychnine (see PID here)
- Zinc phosphide (see PID here)
The PID documents and supplementary materials are comprised of hundreds of pages of dense technical/regulatory information. The following summary is based on an initial review of the PIDs and only accounts for structural uses.
Big Takeaways:
- Restricted Use Pesticide (RUP) status for all second generation anticoagulant rodenticides (SGAR)
- RUP Status for all first generation anticoagulant rodenticides (FGAR) in larger than 4lb packages
- RUP status for all non-anticoagulant rodenticides (Zinc Phosphide, Strychnine, Cholecalciferol and Bromethalin)
- Advisory carcass removal statements for structural uses (except Zinc Phosphide) “While wearing gloves, collect and properly dispose of visible carcasses or target pests or non-target animals. Place carcasses in leakproof plastic bags or other suitable containers and dispose of in the trash or dispose of according to the Pesticide Disposal instructions”
- Mandatory carcass removal statements for all zinc phosphide products. This is mandatory language that requires return visits at specific intervals for at least 2 weeks following application.
- Additional respirator and glove requirements for certain formulations such as meal baits, tracking powder, and pellets. (This will require a closer review to better understand EPA’s justification for inclusion)
- Endangered species risk mitigation language for pilot species: Attwater’s prairie chicken (Texas), California condor (California, Arizona, Utah, Nevada), and Stevens’ kangaroo rat (California)
- Requirements for registrants to create stewardship training and outreach materials
Instructions for Submitting Comments:
To access the comment submission portal for the rodenticide you would like to comment on, please reference the table below and click the appropriate Docket ID #.
Class of Rodenticide: FGAR
- Active Ingredient: Chlorophacinone, Docket ID # EPA-HQ-OPP-2015-0778
- Active Ingredient: Diphacinone (and its sodium salt), Docket ID # EPA-HQ-OPP-2015-0777
- Active Ingredient: Warfarin (and its sodium salt), Docket ID # EPA-HQ-OPP-2015-0481
Class of Rodenticide: SGAR
- Active Ingredient: Brodifacoum, Docket ID # EPA-HQ-OPP-2015-0767
- Active Ingredient: Bromadiolone, Docket ID # EPA-HQ-OPP-2015-0768
- Active Ingredient: Difenacoum, Docket ID # EPA-HQ-OPP-2015-0769
- Active Ingredient: Difethialone, Docket ID # EPA-HQ-OPP-2015-0770
Class of Rodenticide: Non-Anticoagulant
- Active Ingredient: Bromethalin, Docket ID # EPA-HQ-OPP-2016-0077
- Active Ingredient: Cholecalciferol, Docket ID # EPA-HQ-OPP-2016-0139
- Active Ingredient: Strychnine, Docket ID # EPA-HQ-OPP-2015-0754
- Active Ingredient: Zinc phosphide, Docket ID # EPA-HQ-OPP-2016-0140