Beech Tree Disease

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  • 1. Beech Tree Disease
  • 2. Beech bark disease, along with overcrowding of the beech tree population are two concerns faced by Peninsula State Park. What management practices should be taken into consideration by the park and Door County Forestry department and what implications would these practices have? The Question
  • 3.  
  • 4.
    • Acquired Data
    • 3 steps in process of Beech Tree Disease
    • Step 1 “Advancing Front”
    • First appears under lichen, mosses, in defects
    • August 2009 found on 600 acre plot by Sturgeon Bay
    • Probably here 5-6 years—quite a few scales and cankers
    • Eastern Wisconsin and Michigan western most range of beech tree
  • 5.
    • High
    • population
    • of beech scale
    • Severe nectria attacks
    • “ tree snap”12-20 feet they break off
    Step 2 ”Killing Zone”
  • 6. Step 3 “Aftermath Zone” Loss of canopy Change in ecosystem Sprouts emerge from roots of dead tree and can be defective and open up for new colonies of beech scale disease (in the Eastern US-not sure in this locale) May cause beech population to completely die out.
  • 7. Analyze
  • 8. square per total Stand PrimaryForestType D SecondaryForestType Acres basal %Beech feet stand hardwood ExamYear 1 NH - NORTHERN HARDWOODS 2 A - ASPEN 160 105 11 9.5 1527.27 15040 2008 18 NH - NORTHERN HARDWOODS 2 BW - WHITE BIRCH 192 98 16 6.1 1176 15744 2007 3 NH - NORTHERN HARDWOODS 3 H - HEMLOCK 81 98 14 7.0 567 6804 2008 9 NH - NORTHERN HARDWOODS 2 H - HEMLOCK 16 126 23 5.5 87.65 1648 2008 26 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 8 100 24 4.2 33.33 608 2008 6 NH - NORTHERN HARDWOODS 1 NH - NORTHERN HARDWOODS 38 119 30 4.0 150.73 3382 2008 7 NH - NORTHERN HARDWOODS 1 NH - NORTHERN HARDWOODS 18 133 43 3.1 55.67 1620 2008 11 NH - NORTHERN HARDWOODS 1 NH - NORTHERN HARDWOODS 18 99 40 2.5 44.55 1062 2008 6 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 38 120 13 9.2 350.77 4066 2008 7 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 63 125 37 3.4 212.84 5544 2008 11 NH - NORTHERN HARDWOODS 1 NH - NORTHERN HARDWOODS 37 118 38 3.1 114.89 2960 2008 32 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 4 123 23 5.3 21.39 400 2008 46 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 8 117 38 3.1 24.63 632 2008 50 NH - NORTHERN HARDWOODS 3 NH - NORTHERN HARDWOODS 5 95 30 3.2 15.83 325 2008 3 NH - NORTHERN HARDWOODS 3 NH - NORTHERN HARDWOODS 8 87 17 5.1 40.94 560 2008 15 NH - NORTHERN HARDWOODS 2 NH - NORTHERN HARDWOODS 5 100 30 3.3 16.67 350 2008 78 4440 60745
  • 9.
    • Loss of trees with life expectancy 150 years-late succession species
    • One of few food bearing trees in park
    • Change in ecosystem with increasing sunlight
    • Spraying not effective and cost prohibitive
    Problems
    • Scales too small to remove by hand
    • Opens trees to other diseases and pests
  • 10. Actions?
    • 1-2 % are resistant to ne ctria fungus (so a clear cut would not be advised)
    • Single trees can be pow er washed (need to be short enough to reach o r get access to top)
    • Forester Chris would like to do a timber harvest for trees that are
    • Low quality
    • Diseased
    • Won’t be here in 10- 15 years
  • 11. Solutions
    • Need to do an estimate of affected trails. (There is currently no accurate measurement of trails in the park)
    • Very limited harvesting near trails recommended on trees of over 8” diameter because of their susceptibility to disease and danger from tree snap
    • 3-5 year period from infestation allows rangers time to mark affected trees only
    • Harvesting may be too small in scale to be economically worthwhile for a logger (also large equipment has never been used in park) so fire wood cutting program may need to worked out
    • Park policy changes may be required for harvesting to occur
  • 12. Son of a Beech There is no easy solution
  • 13.