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Forest Health

  • Webpage

    Spray Block Maps and Information

    Please note: The State of Wisconsin does not offer a state-sponsored or cost-share program to have privately owned land treated for spongy moth populations. DNR Aerial Treatments The Wisconsin Department of Natural Resources (DNR) organizes aerial…

  • News

    Watch For Signs Of Emerald Ash Borer This Winter

    The Wisconsin Department of Natural Resources (DNR) encourages property owners to watch for woodpecker damage to their ash trees this winter.

  • News

    DNR Offers Free Tree Seedlings To Wisconsin Fourth Graders Ahead Of Arbor Day 2024

    The Wisconsin Department of Natural Resources (DNR) is offering free tree seedlings to every fourth-grade student in Wisconsin as part of the department’s annual Arbor Day tree planting program.

  • Hearing/Meeting

    Council on Forestry Profile Committee Meeting

    This is a meeting of the Council on Forestry’s Profile Committee to discuss potential updates to the Council’s website.

  • News

    DNR Confirms Oak Wilt In Ashland County

    The Wisconsin Department of Natural Resources (DNR) today announced that oak wilt, a deadly disease that affects oak trees, has been found for the first time in Ashland County.

  • News

    DNR Looking To Buy Bushels Of Red Pine Cones

    The Wisconsin Department of Natural Resources (DNR) is asking for help collecting red pine seed for their reforestation program. This fall, the DNR’s tree nursery in Boscobel will be sowing the last of the red pine seed they have in storage and are asking members of the public to collect seed to replenish their supply.

  • News

    DNR Experts Warn Of A Bad Spongy Moth Summer

    The Wisconsin Department of Natural Resources (DNR) warns the public that the next two months could bring the worst spongy moth caterpillar outbreak in more than a decade.

  • News

    DNR Announces Aerial Spraying For Spongy Moth Caterpillars At Four State Properties

    The Wisconsin Department of Natural Resources (DNR) today announces aerial spraying operations will soon take place over four DNR properties to combat spongy moth caterpillars, formerly known as gypsy moth.

  • News

    Help Protect Oak Trees From Oak Wilt

    The Wisconsin Department of Natural Resources (DNR) reminds everyone that the arrival of spring brings a high risk for the often-fatal oak wilt disease across the state. The DNR recommends not pruning or cutting oak trees from April through July.

  • News

    Protect Your Valuable Ash Trees Against Emerald Ash Borer

    The Wisconsin Department of Natural Resources (DNR) encourages property owners with healthy, valuable ash trees to treat them with insecticide this spring to protect against the deadly emerald ash borer. The pest is the most damaging threat to Wisconsin trees, killing more than 99% of the untreated ash trees it infests.

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