Title: Release of 7-year-old underplanted white pine using hexazinone applied with a spot gun
Author: Wendel, G. W.; Kochenderfer, J. N.
Source: Res. Pap. NE-614. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7 p
Station ID: RP-NE-614
Description: Hexazinone, Velpar-L?, applied at rates of 1 .O, 1.5, and 1.75 ml per spot, controlled competing hardwoods around 7-year-old underplanted white pine. Growth response was more pronounced when hexazinone was applied to release individual pines than when the entire area was treated on a 6 by 6- foot grid. In most cases, hexazinone killed white oak, chestnut oak, American beech, sourwood, red maple, and black gum. Yellow-poplar, red oak, cucumbertree, black cherry, sugar maple, sweet birch, and sassafras showed variable sensitivity to hexazinone. Three years after treatment, resprouting of killed stems and white pine mortality remain low.
Keywords: spot gun; herbicide; release; white pine
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Wendel, G. W.; Kochenderfer, J. N. 1988. Release of 7-year-old underplanted white pine using hexazinone applied with a spot gun. Res. Pap. NE-614. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7 p.