Sirex wood wasp ( Sirex noctilio )
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Minnesota First Detectors Sirex wood wasp (Sirex noctilio) D. Lance, USDA APHIS PPQ, Bugwood.org
description
D. Lance, USDA APHIS PPQ, Bugwood.org. Sirex wood wasp ( Sirex noctilio ). D. Lance, USDA APHIS PPQ, Bugwood.org. P. Klasmer, INTA, Bugwood.org. Impact. Primarily a pest of pines Tree mortality, reduced commodity value & loss of markets Native range: Secondary pest - PowerPoint PPT Presentation
Transcript of Sirex wood wasp ( Sirex noctilio )
Minnesota First Detectors
Sirex wood wasp (Sirex noctilio)
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Impact
Primarily a pest of pines Tree mortality, reduced commodity value &
loss of markets Native range: Secondary pest Adventive range: Significant losses in
overstocked & stressed plantations Up to 80% tree mortality in Australia North America: ???
P. Klasmer, INTA, Bugwood.org
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Pine species susceptibilityVERY HIGH HIGH MEDIUM LOW
Austrian Lodgepole Knobcone Eastern white
Monterey Jack Sand Bristlecone
Loblolly Jeffery Apache Foxtail
Scotch Ponderosa Spruce Com. pinyon
Red Bishop Coulter
Shortleaf Longleaf Limber
Slash Table mtn. Southwestern
Virginia Pitch Sugar
Pond Western white
Gray
Arizona
TorreyD.
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, U
SD
A F
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d.o
rg
Very rare on larch, spruce & fir
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Life cycle
W. Ciesla, FHMI, Bugwood.org
Wood decay fungus
Phytotoxic mucus
1 to 3 years
D.H
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en,
Bu
gw
oo
d.o
rg
K. L
oeffler,
Co
rnell U
niv.
D. Lance, USDA APHIS PPQ, Bugwood.org
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Distribution
Native Range
Introduced
1994
1990
2001 19801961
1952 1900
D. Haugen, Bugwood.org,
K. Karnes
Minnesota First Detectors
Minnesota First Detectors
Early detection
Lure: alpha pinene (70%) & beta pinene (30%)
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
MDA trapping data
Species 2006 2007 2008
Sirex noctilio 0 0 0
Sirex edwardsii 171 27 75
Sirex juvencus 4 1 10
Sirex nigricornis 145 34 93
Tremex columba 21 8 21
Urocerus albicornis 11 1 16
Urocerus cressoni 19 14 37
Xeris spectrum 0 4 6Total samples 1,775 1,600 1,698
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Silviculture
Unthinned, suppressed stands are at risk
Maximize individual tree growth
Remove stressed trees & maintain vigorous growth
Conduct before infestation occurs
US Forest Service, Dodds et al. 2007 D. Haugen, Bugwood.org
Thinned
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
inta.govfo
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Biological controlParasitic nematode
(Beddingia siricidicola)
Parasitic wasps
(Ibalia & Rhyssa)
K.E. Zylstra
K.E. Zylstra
K.E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
