Idaho State Department of Agriculture confirms quagga mussel larvae in the Snake River |
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Boise, Idaho – The Idaho State Department of Agriculture (ISDA) confirmed yesterday (9/18/23) the presence of quagga mussel larvae in the Centennial Waterfront Park area of the Snake River. Multiple samples of quagga mussel at larval life stages have been found in the Twin Falls area by ISDA’s early detection monitoring program.
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ID State Dept of Agriculture - Map of the impacted area
Detection of Garden Loosestrife Confirmed
in Western Montana
Garden loosestrife (Lysimachia vulgaris), an aggressive non-native wetland plant, has been found in western Montana. In July 2023, approximately 0.1 acres along the Stillwater River, west of Kalispell, and an additional 0.2 acres along the Bitterroot River in Hamilton were mapped and treated by local land managers and MDA’s Early Detection, Rapid Response (EDRR) Program. Monitoring will be conducted on both sites and adjacent lands for the next several years.
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Detection of Rush Skeletonweed Confirmed
in Lewis & Clark County
The Montana Department of Agriculture (MDA) confirmed Rush Skeletonweed at two different sites outside of Helena, Montana. Rush Skeletonweed (Chondrilla juncea), a Montana Priority 1B Noxious Weed, has limited presence in Montana and if found requires eradication or containment and education.
This is currently the only population of Rush Skeletonweed east of the Continental Divide in the state. The invasive weed can reduce crop yields by as much as 70 percent once established, which is why establishment prevention in central and eastern Montana is critical.
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Montana Department of Agriculture accepting applications for 2024 Noxious Trust Fund Grants
Applicants may apply for funding up to $75,000 per project. Applications are due Saturday, January 6, 2024.
More than 88,000 watercrafts inspected for aquatic invasive species
So far this year, FWP and its partners have inspected more than 86,000 watercrafts for aquatic invasive species. Of those, 45 were mussel-fouled and more than 400 were found with aquatic weeds.
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In the last few weeks, the following was detected:
- A ski boat recently purchased in Minnesota was intercepted with mussels at the Wibaux watercraft inspection station (operated by Garfield Conservation District). The boat was decontaminated, locked to the trailer and released to its final destination in Pend Oreille, Idaho. Idaho was notified to allow for follow-up.
- The Wibaux station intercepted a wakeboard boat that was recently purchased in Minnesota with mussels in the sea strainer. The boat was decontaminated, locked to the trailer and authorities at Lake Tahoe, its destination, were notified for follow-up.
- The Broadus inspection station (managed by the Powder River Conservation District) intercepted a recently purchased mussel fouled ski boat from Minnesota heading for Big Sky. Staff decontaminated the boat, locked it to the trailer and FWP staff followed up with the owner for a full decontamination.
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