Burrowing Shrimp

burrowing shrimp

Settlement agreement between Willapa Grays Harbor Oyster Growers Association and Washington Department of Ecology to drop the imidicloprid permit appeal given the support of research projects to develop the Integrated Pest Management plan. 

burrowing shrimp

Supplemental Final Impact Statement (SFEIS) for the use of imidacloprid to manage burrowing shrimp was released. Revised imidicloprid permit application denied by Washington Department of Ecology. Willapa Grays Harbor Oyster Growers Association appeals the permit denial decision to the Water Pollution Control Hearings Board. 

BURROWING SHRIMP

Revised imidicloprid permit application denied.

burrowing shrimp

Revised imidicloprid permit application submitted.

U.S. Environmental Protection Agency releases a Preliminary Aquatic Risk Assessment (RA) to Support the Registration Review of Imidacloprid.

burrowing shrimp

Final Environmental Impact Statement (FEIS) for the use of imidacloprid to manage burrowing shrimp was issued, followed by a National Pollutant Discharge Elimination System (NPDES) Waste Discharge Permit (WDOE). Permit for imidacloprid application requested, denied (Doenges et al 2018). Willapa Bay Grays Harbor Oyster Growers Association withdrew NPDES permit  after intense media coverage. 

BURROWING SHRIMP

 Burrowing shrimp control with carbaryl discontinued

burrowing shrimp

Field trials of imidacloprid were detailed in a Sampling and Action Plan (SAP) by Washington State University, University of Washington, Pacific Shellfish Institute, Willapa Grays Harbor Oyster Growers Association, and Washington Department of Ecology.

burrowing shrimp

National Pollutant Discharge Elimination System permit work on imidacloprid for burrowing shrimp initiated (Patten, pers. Comm.). Burrowing Shrimp Integrated Pest Management Plan updated by the Willapa Grays Harbor Oyster Growers Association (WGHOGA). Crop Profile for Bivalve (Oysters, Manila Clams, Geoduck Clams and Mussels) Aquaculture in Washington was developed by Washington State University and WGHOGA. The Pest Management Strategic Plan (PMSP) for Bivalves in Washington and Oregon was the primary outcome from a planning workshop that was attended ...

burrowing shrimp

Federal and State Experimental Use Permits were issued from U.S. Environmental Protection Agency and Washington State Department of Agriculture for large scale (50+ acre) field trials of granular and liquid formulations of imidacloprid to assess efficacy, fate and transport, and impacts on sturgeon, crab, and benthic invertebrates. 

burrowing shrimp

Burrowing Shrimp Integrated Pest Management Plan updated by the Willapa Grays Harbor Oyster Growers Association. Washington State University conducts studies to measure residues of the insecticide imidacloprid (Nuprid 2F) in oyster meat following field applications were begun under the Inter-regional Research Project #4 (IR-4) program for registration of pesticides in minor crops; and using certified Good Laboratory Practices (GLP) personnel and protocols. 

BURROWING SHRIMP

Imidacloprid studies conducted for control of burrowing shrimp (Patten, pers. comm.)

burrowing shrimp

The Willapa Bay Grays Harbor Oyster Growers Association (WGHOGA) agreed to settle a legal challenge of the use of carbaryl by successively reducing on the amount of carbaryl applied per year with full termination by 2012. Signatories were the Toxics Coalition, the Ad-hoc Coalition for Willapa Bay, several state agencies, and the WGHOGA. Burrowing Shrimp Integrated Pest Management (IPM) plan released by WGHOGA.