Department of Pesticide Regulation Logo 
Winston H. Hickox
Secretary for
Environmental
Protection

Department of Pesticide Regulation


Paul E. Helliker, Director
830 K Street - Sacramento, California
95814-3510 - www.cdpr.ca.gov

   
  California Notice 99-7

POST UNTIL February 7, 2000

California State Seal
Gray Davis
Governor

NOTICE OF PROPOSED REEVALUATION
OF PESTICIDE PRODUCTS

Pursuant to Articles 8 and 12 (Title 3) of the California Code of Regulations, the Director of the Department of Pesticide Regulation (DPR) notices his decision to initiate a reevaluation of pesticide products. Interested persons may comment on this decision up to and including the date shown on the top-right corner of this notice to the Department of Pesticide Regulation, Pesticide Registration Branch, 830 K Street, Sacramento, California 95814-3510

REEVALUATION

DPR commences reevaluation of the following pesticide products without further notice. The products included in this reevaluation are rodenticides that contain the active ingredient brodifacoum.
Registrant Brand Name/U.S. EPA Reg. No.
Bayer Corporation Attack Rodenticide Bait Pack Pellets
10182-340-AA-11556
Bell Laboratories, Inc. Final Blox
12455-89-AA
  Final Rodenticide
12455-90-AA
  Final Rodenticide Ready-To-Use Place Pac
12455-91-AA
  Final Rodenticide Place Pac
12455-94-AA
Enforcer Products, Inc. Enforcer Rat Kill II
10182-337-AA-40849
  Enforcer Mouse Kill Multi-Pak
10182-337-ZA-40849
  Zep Commercial Rat & Mouse Killer Bulk Pack
10182-337-ZB-40849
  Enforcer Rat & Mouse Bars II
10182-339-AA-40849
  Zep Commercial Weatherproof Rat & Mouse Bars
10182-339-ZA-40849
  Enforcer Rat & Mouse Killer Pellets II
10182-340-AA-40849
  Exterminator's Choice Rat & Mouse Killer
10182-340-ZA-40849
Fort Dodge Laboratories, Inc. Ropax Bars
10182-339-AA-1117
  Ropax Rodenticide Bait Pack (Pellets)
10182-340-AA-1117
Household Products Division D-Con Bait Pellets
3282-66-ZA
  D-Con Bait Pellets II
3282-74-ZA
  D-Con Mouse Killing Station
3282-79-AA
  D-Con Ready Mixed Baitbits
3282-81-ZA
LiphaTech Inc. Maki Rat and Mouse Meal Bait (Packs)
7173-171-AA
  Boot Hill Kills Rats & Mice Dead Poultry
House Bait Packs (Meal)
7173-171-ZA
Loveland Industries, Inc. Havoc Rodenticide Bait Pack Pellets
10182-340-AA-36208
Motomco Ltd. Jaguar Bait Chunx
12455-89-AA-3240
  Jaguar Rodenticide
12455-90-AA-3240
  Jaguar Rodenticide Ready-To-Use Place Pac
12455-91-AA-3240
Pitman-Moore Inc. Havoc Wax Blocks with Bitrex
10182-339-AA-773
  Havoc Rodenticide Bait Pack (Pellets) Contains Bitrex
10182-340-ZA-773
Solvay Animal Health, Inc. Salsbury Ropax Bars Contains Bitrex
10182-339-AA-116
  Salsbury Ropax Rodenticide Bait Pack (Pellets) Contains Bitrex
10182-340-AA-116
Zeneca, Inc. Talon-G Rodenticide Bait Pack Mini-Pellets
(Contains Bitrex)
10182-334-AA
  Talon-G Rodenticide Bait Pack Pellets
(Contains Bitrex)
10182-335-AA
  Talon-G Rodenticide Pellets
(Contains Bitrex)
10182-336-AA
  Weatherblok Bait with Bitrex
(Made with Talon Rodenticide)
10182-339-AA
  Weatherblok Bait
10182-339-ZA
  Weatherblok XT Rodenticide
10182-339-ZB
  Havoc Rodenticide Bait Pack Pellets
(Contains Bitrex)
10182-340-AA
  Talon-G Rodenticide Mini-Pellets
(Contains Bitrex)
10182-341-AA

BASIS OF REEVALUATION

Brodifacoum is registered in California for the control of Norway rats, roof rats, and house mice in residential, industrial, commercial, agricultural, and public buildings. Registrants formulate the product with a grain-based bait in pellets, mini-pellets, and wax blocks.

DPR placed the pesticide active ingredient brodifacoum into reevaluation at the request of the Department of Fish and Game (DFG). DFG expressed concern that California's wildlife are exposed and adversely affected by currently registered uses of the anticoagulant rodenticide brodifacoum.

Since 1994, DFG's Pesticide Investigations Unit has investigated 58 cases of possible wildlife exposure to anticoagulant rodenticides. Residues of anticoagulant rodenticides were detected in 38 birds and mammals, and residues of brodifacoum were identified in 31 birds and mammals, accounting for 82 percent of the anticoagulant exposures. Of the 31 individuals in which residues of brodifacoum were detected, clinical signs of anticoagulant poisoning were observed in 10 to 20 percent. Eleven of the animals also carried residues of at least one other anticoagulant rodenticide in conjunction with brodifacoum. Because wildlife typically retreat
to dens, burrows, or unobtrusive roosts in the final stages of anticoagulant poisoning, exposure
of non-target wildlife to this compound may be more extensive. Most of the birds and mammals exposed to brodifacoum were recovered from areas adjacent to urban development in Santa Clara, Los Angeles, Ventura, Orange, San Benito, Alameda, and Contra Costa counties.

DPR and DFG plan to identify the pathways that result in wildlife exposure to brodifacoum and curtail exposure through effective mitigation measures.

For information, please contact Ms. Ann Prichard, Senior Environmental Research Scientist, Pesticide Registration Branch, by e-mail at aprichard@cdpr.ca.gov or by telephone
at (916) 324-3931.


original signed by Barry Cortez


12-30-99


Barry Cortez, Chief
Pesticide Registration Branch
(916) 445-4377

Date


California Environmental Protection Agency