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Rick

OutdoorMN News - Flowering rush confirmed in Grants Lake in Douglas County

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Rick

First time invasive aquatic plant has been confirmed in county

The Minnesota Department of Natural Resources has confirmed small patches of flowering rush, an invasive aquatic plant, in Grants Lake in Douglas County. 

The DNR has begun removing the plants by hand. Hand removal can be successful in small populations like this one.  DNR staff will monitor the site for any regrowth and take appropriate further control measures if required.

Flowering rush is a weed-like plant with pink flowers that can overtake habitat, crowd out native species and make it difficult for boats to access open water. It is a perennial that grows one to four feet high along shores in shallow, slow-moving water.

In deeper water, it can grow in a submerged form that does not produce flowers. It flowers in early summer through mid-fall. Flowering rush can be difficult to identify when not in flower, as it closely resembles many beneficial native shoreland plants such as the common bulrush.

People can spread flowering rush primarily by moving water-related equipment and illegally releasing water garden plants into public waters. It reproduces by vegetative spread of small onion-like buds called bulbils, which can be hidden in mud and debris and can stick to boots, waders and other fishing and hunting gear.

Flowering rush is a prohibited invasive species in Minnesota, which means it is unlawful (a misdemeanor) to possess, import, purchase, transport or introduce this species except under a permit for disposal, control, research or education.

Whether or not a lake is listed for any invasive species, Minnesota law requires boaters and anglers to:

  • Clean watercraft and trailers of aquatic plants and prohibited invasive species.
  • Drain all water by removing drain plugs and keeping them out during transport.
  • Dispose of unwanted bait in the trash.

Some invasive species are small and difficult to see at the access. To remove or kill them, take one or more of the following precautions before moving to another waterbody:

  • Spray with high-pressure water.
  • Rinse with very hot water (120 degrees for at least two minutes or 140 degrees for at least 10 seconds).
  • Dry for at least five days.

People should contact an area DNR aquatic invasive species specialist if they think they have found flowering rush or any other invasive species that has not already been confirmed in a lake.

More information is available at mndnr.gov/ais.

Discuss below - to view set the hook here.

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  • Your Responses - Share & Have Fun :)

    • Bigfatbert
      Just curious how many people would like to see this site and this post to pass on a a public service to all during these trying times as we are all in this together !   at a time when so many businesses are pitching in and using their business to help out during these trying times wouldn’t it be nice if that could be done here as maybe a way to get the word out , give tips or ways to help out our brothers and neighbors during these trying times . I’m sure any help would be appreciated .    It would really be sad to see this post  removed by a moderator ..  
    • Bigfatbert
      So great to read this , how so very caring and thoughtful you truly are . thank you for posting this ray guy ! Your fishing buddies are so lucky to have you as their friend and fishing partner . 
    • Bigfatbert
      The city of Duluth is only allowing locals to go go smelting in the rivers . Non local cannot participate due to the Covid19 restrictions , and while smelting all must maintain at least a 6 ft distance .
    • Bigfatbert
      With Covid19 restrictions this holds  true for non family members .   With a 12-17 ft boat no more than 2 people can legally fish from it    With a 18 -23 ft boat no more than 3 people can legally fish from it .   With a 24-30 ft boat no more than 4 people can legally fish from it .   must always maintain at least a 6’ distance  at landings , landing parking lots , docks , while in he boat fishing or moving around  , using a landing net ,..
    • IceHawk
      I know where your coming from always on the water well before sunrise and usally of by 10 or so.  My  buddies always say we know your off the lake and the boats loded as soon as we see the first jet ski or water skier. 😀 Problem so many are so inconsiderate now a days. They see I'm walleye fishing and its like a game to go right by me when they have the whole open part of the lake to tear up. 😡 
    • smurfy
      Poachers caught and more poachers caught by Tom Chapin. Alot of them happened within 60-70 miles of our cabin.
    • dutchboy II
      I hear ya on fishing locally. I only like big water, not for the fish but because I get tired of going round & round like a NASCAR. Also have a very low tolerance for jet ski's, water skiers, speed boats.   Fishing is just something I do while on the water, not the reason I go.
    • IceHawk
      You should know you did it in a few threads yourself 😂 In fact we all have maybe a time or two.  Had to throw that one at you 😉 All in good fun!
    • IceHawk
      I hit Mill Lacs once a summer but it's not a real big deal to miss it. More than likely wont even go this year. Wish I could but may not even have that option with this stuff going on now.   I have lakes near my area that always produce good results if you put in the time to figure them out. Ill fish locally as I almost always  do through the summer just way easier with my hectic work schedule. Many people would be surprised how good of fishing they have close to them if they would only put in the effort and time to learn the lakes near them. Agree with all these bad years with the regulations and now this sad but true some of the mom pop resorts just wont make it to much longer.
    • dutchboy II
      Old thread I know but............   Fascinating thread. Hope I can make a show. Love seeing hand made art.  😃
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