News and Updates

Recent Press Releases

• Snake River Quagga Mussel Treatment Conclusion Update

  September 18, 2026
  The ISDA has completed its 2026 Snake River Treatment for quagga mussels. The 2026 treatment was a multi-phase project that utilized the copper products Natrix, Earthtec QZ and Cutrine Plus Granular. The treatment began Thursday, August 27, and concluded Wednesday, September 16.   ISDA confirmed, Tuesday, August 18, 2026, a detection of quagga mussels in the infested area of the Snake River. Sa... More

• Sampling Shows Another Decline in Snake River Quagga Mussel Population

  August 18, 2026
  Boise, Idaho — The Idaho State Department of Agriculture (ISDA) announced today that extensive sampling shows quagga mussel detections in the Snake River once again have decreased from the previous year. Currently, ISDA is detecting 77% fewer veligers than in 2025.   As the mussel population in the Mid-Snake River decreases, ISDA has increased diving efforts and even more targeted approaches to... More

• Idaho Sets Animal Entry Requirements Following New World Screwworm Detection

  June 10, 2026
  BOISE, Idaho - The Idaho State Department of Agriculture (ISDA) announced today additional state entry requirements for animals in response to New World screwworm (NWS) detections in Texas and New Mexico.  On June 3, 2026, the United States Department of Agriculture (USDA) confirmed the first U.S. case of NWS in Zavala County, Texas. NWS is a serious pest that threatens livestock, pets, wildlife,... More

• Watercraft Inspection Stations Open for 2026 Season in Idaho

  April 14, 2026
  Boise, Idaho — The Idaho State Department of Agriculture (ISDA) watercraft inspection stations have begun inspecting watercraft for the 2026 season.  The ISDA Invasive Species Program reminds boaters to take precautions to avoid transporting invasive species, such as quagga and zebra mussels. All boat owners must stop for mandatory inspection when traveling past an Idaho watercraft inspection sta... More

• Cull Onion Disposal Deadline March 15

  March 4, 2026
  Boise, Idaho — The deadline for the disposal of cull onions in Ada, Canyon, Gem, Payette, Owyhee and Washington counties is March 15, 2026. Under the Rules Governing the Disposal of Cull Onions and Potatoes (IDAPA 02.06.05 Subchapter E), all cull or waste onions not suitable for human consumption must be disposed of by an approved method prior to March 15 each year. After March 15, onions that ar... More