tree insects & diseases on tree death is coming the horizon...tree insects & diseases on...
TRANSCRIPT
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Tree Death Is Coming Tree Insects & Diseases on
the Horizon
Sustainable Forestry Conference
Brian Schwingle, DNR Forest Health Specialist
April 15, 2010
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Agenda
• EAB
• Annosum Root Rot
• Oak Wilt
• Twolined Chestnut Borer
• Other Red Pine Problems
• Spruce Budworm Populations
• Beech Bark Disease
• Defoliators
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Emerald Ash Borer (EAB)
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EAB Infestation Indications
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EAB Infestation Indications
Guthmiller
Guthmiller
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EAB Infestation Indications
WI DNR
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EAB Infestation Indications
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WI DNRWI DNR
EAB Infestation Indications
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EAB Adult and Larva
WI DATCP MSU
1 - 1½ inches
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Young EAB Larva
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EAB Distribution
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EAB Distribution
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Prepare Your Forest for EAB
• During your scheduled harvests, reduce
the basal area of ash
• If you own black ash swamps, consider
converting to a different cover type
• Visit
www.dnr.wi.gov/forestry/fh/PDF/EABWIMa
nagementGuidelines.pdf
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EAB Reporting In WI
• Suspicious trees should be reported to the
EAB hotline by calling 1-800-462-2803.
• Reports can also be emailed to
• For more information on EAB, visit the
state’s website: emeraldashborer.wi.gov
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What is Wisconsin Doing about
EAB?
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What is the State Doing about
EAB?
Williams
Trap Tree Experiment
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What is Wisconsin Doing about
EAB?
•Experiments - trap trees
- black ash stand conversion
•Early Detection
•Regulation to slow EAB’s spread
•Wood Utilization
•Helping small woodland owners
- inventory ash
- facilitate pre-salvage timber sales
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Want to Move Regulated Ash
Material Within Wisconsin?
Contact Bob Dahl with DATCP– 608-224-4573
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Want to Move Regulated Ash
Material Across State Lines?
Contact APHIS:
JoAnn Cruse in Wisconsin – 608-231-9545
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What is Michigan Doing about
EAB?
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Want to Move Regulated Ash
Material Within Michigan?
Contact John Bedford with MDA – 517-373-4350
or 517-243-1247
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Other Ash Pests
Longhorned Beetles
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Other Ash Pests
Glassworms
(ash cambium miner)
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Annosum (Heterobasidion) Root Disease
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Annosum Root Disease
• Over 200 woody species have been reported as hosts
– most common in red and white pine plantations in Wisconsin
• Do not confuse with Red Pine Pocket Decline!
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Annosum Root Disease
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Annosum Biology
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Annosum Prevention
• Prevention
– Thin in the winter
– Shake Sporax or spray
Cellu-Treat on stumps
within 24 hrs of cutting
• If you have decline pockets, visit
dnr.wi.gov/forestry/Fh/annosum
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Oak Wilt
• Kills oaks
• Wilting occurs most often
in late June - August
• Do not confuse with Two
Lined Chestnut Borer!
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Two-Lined Chestnut Borer
• Do not operate in stressed oak
stands (exception: can winter
salvage areas of dead oaks to
capture economic value)
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Oak Wilt Overland Spread
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Oak Wilt Underground Spread
UW-MN Extension
Solomon, USFS
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Oak Wilt
Prevention• Prevention
– Do not thin between April 1
and July 15 (better yet, no
cutting between March and
October)
– Do not bring oak firewood
onto your property
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Oak Wilt Control
1. Trench around pocket at
appropriate distance
2. Remove oaks within trenchline
& herbicide stumps
OR
1. Remove infected trees in
fall/winter
2. Herbicide appropriate
surrounding oaks in early July
3. Remove trees in fall &
herbicide stumps
EXPERIMENTAL
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•If you have dying oaks, visit
dnr.wi.gov/forestry/Fh/oakWilt/
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Local Red Pine Problems
The Wisconsin State Climatology Office
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Armillaria Root Rot
USFS
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Armillaria Root Rot
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Armillaria Root Rot
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Armillaria Management
USFS
• Promote species diversity
• Maintain tree vigor
• Do not plant pines on a former
hardwood site
• Desperate times call for
desperate measures:
Bulldoze out stumps
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Pine Engraver Bark Beetles
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Pine Engraver Management
• Prevention
– Do not thin from March to
the mid-September
– Move logs off landing within
3 wks during the growing
season
– Beware fresh firewood
• Promote species diversity
• Remove newly infested
trees ASAP (or before
next April)
• Water ornamentals
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Spruce Budworm
USFS
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Spruce Budworm
U. of WisconsinUSFS
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Spruce Budworm Management
USFS
• Reduce rotation age
• Remove older balsam firs and
spruces near spruce/fir
plantations
USFS
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Beech Bark Disease
Confirmed beech scale sites
Created by Daniel Wieferich, MSU
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Beech Bark Disease Indicators
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Beech Bark Disease Indicators
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Gypsy Moth
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Gypsy moth•Defoliates oak, among others
•Look for the caterpillar eating leaves
beginning in mid-May
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More Gypsy Moth Information
• Get answers at 1-800-462-MOTH
• Report or ask questions to
• Visit http://gypsymoth.wi.gov/ for more
information
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0
500000
1000000
1500000
2000000
2500000
3000000
1991 1994 1997 2000 2003 2006
Outbreak
Acreage?
++
Forest Tent Caterpillar
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Sick Forest Trees – contact DNR Forest Health Specialist or DNR
Forester
Emerald Ash Borer Reports/Questions – call 800-462-2803, email
[email protected], or visit
emeraldashborer.wi.gov
Gypsy Moth Reports/Questions – call 800-642-MOTH or visit
gypsymoth.wi.gov
Ornamental Tree Questions – contact local extension office or
certified arborist
Community Tree Questions – contact local arborist or urban
forester (Don Kissinger, DNR urban forester, Wausau, 715-359-
5793)
Help is Available
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DNR Forest Health Protection Staff
Northern Region
Brian Schwingle, Rhinelander, 715-365-8908
Shane Weber, Spooner, 715-635-4156
Northeast Region
Linda Williams, Green Bay, 920-662-5172
Bill McNee, Gypsy Moth, Green Bay,
920-662-5430, [email protected]
MI’s UP
Bob Heyd, Marquette, 906-228-6561 ext 3023