The Minnesota Department of Natural Resources has finished a helicopter-based project to disperse jack pine, white pine, and black spruce seeds on forests managed by the state. Aerial seeding is part of the DNR’s annual fall reforestation efforts, which also include planting seedlings, direct seeding, bud capping, prescribed burns, and other site preparation activities.
Reforestation in Minnesota is overseen by the DNR’s Silviculture Program, which manages forests to support wildlife habitat, recreation, clean air and water, sustainable timber production, and other objectives. Some areas are too remote or difficult to access on foot, making helicopters a practical solution. Seeds are mixed with clay for even distribution, loaded into a hopper on the aircraft, and dropped over targeted sites from just above the tree canopy.
“Reforestation is a lot more complex than simply planting a seedling,” said Chris Gronewold, Silviculture Program coordinator. “Depending on each site and future goal, we choose the right mix of tree species and use every available tool to make sure we’re giving trees their best chance to grow.”
This fall, aerial seeding took place at 19 state forest sites. Additional crews are working across the state using other reforestation methods. In total, 589 acres will be planted or seeded this season. Foresters will continue monitoring these sites, removing invasive species and competing vegetation to ensure the young trees have the opportunity to thrive.
