wood wasps / horntails
DESCRIPTION
D. Lance, USDA APHIS PPQ, Bugwood.org. Schiff et al. 2006. Schiff et al. 2006. Wood wasps / Horntails. 1 to 1.5 inches long “Horn tail” and lack narrow “waist” 23 species in US and Canada 2 on hardwood, 21 on softwood 19 native, 4 exotic. D. Lance, USDA APHIS PPQ, Bugwood.org. - PowerPoint PPT PresentationTRANSCRIPT
Minnesota First Detectors
Wood wasps / Horntails
1 to 1.5 inches long “Horn tail” and lack
narrow “waist” 23 species in US
and Canada 2 on hardwood,
21 on softwood 19 native, 4 exotic
Schiff et al. 2006
Schiff et al. 2006
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Which Insect is a Wood Wasp?
0%
0%
0% A. Insect A
B. Insect B
C. Insect CN
. Wri
gh
t, F
DA
CS
, Bu
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oo
d.o
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F. &
K. S
tarr
, U.S
. GS
, Bu
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rg
G. A
lper
t, H
arva
rd U
niv
., B
ug
wo
od
.org
BA C
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
The Sirex Woodwasp
The Female The Male
K. E. Zylstra
● 1 to 1.5 inches long
● Dark metallic blue-black body
● Legs reddish-yellow, feet black
● Antennae entirely black
Similar to females, but…
● Middle portion of abdomen
orange
● Hind legs black
K. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
K. E. Zylstra
Minnesota First Detectors
Which Insect is a Sirex Wood Wasp?
0%
0%
0% A. Insect A
B. Insect B
C. Insect C
F. &
K. S
tarr
, U.S
. GS
, Bu
gw
oo
d.o
rg
G. A
lper
t, H
arva
rd U
niv
., B
ug
wo
od
.org
BA
D. Lance, USDA APHIS PPQ, Bugwood.org
C
N.W
rig
ht,
FD
AC
S,
Bu
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oo
d.o
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PD
IL,
Bu
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PD
IL,
Bu
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Minnesota First Detectors
K. E. Zylstra
K. E. Zylstra
The Larva
● Creamy white
● Legless
● Dark spine at tip of abdomen
Minnesota First Detectors
Siricids are commonly referred to as horntails because of their cornus on the posterior end
Currently, there is no morphological key for siricid larvae and a molecular key is being developed by the USFS.
K. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Which Larva is a Wood Wasp?
0%
0%
0% A. Insect A
B. Insect B
C. Insect C
BA
D. Lance, USDA APHIS PPQ, Bugwood.org
CS.
Kin
els
ki,
, B
ug
wo
od
.org
H.
Pa
se
III
, T
ex
as
F.S
., B
ug
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.org
D.
Ca
pp
ae
rt,
MI
Sta
te U
niv
., B
ug
wo
od
.org
Minnesota First Detectors
K. E. Zylstra
Finely packed frass in the tunnel
K. E. ZylstraWhen you cut through the tree sometimes you can see where you cut through a gallery
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Larval Galleries
K. E. Zylstra
Minnesota First Detectors
K. E. Zylstra
K. E. Zylstra
Larval galleries
Minnesota First Detectors
Adult male chewing his way out…
K. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Symptoms of Attack
Resin beads Browning/thinning
crown Woodpecker
damage Exit holes
***The Sirex wood wasp can attack living trees, while native wood wasps attack dead or dying trees***
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Resin Beads Look Different On Different Pine Species…
Red PineScots Pine White Pine
Resin beadsK. E. Zylstra
K. E. Zylstra
K. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Infested Scots Pine
K. E. ZylstraK. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Infested Red Pine
K. E. Zylstra
K.
E.
Zyl
stra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
Infested White Pine
K. E. ZylstraK. E. Zylstra
D. Lance, USDA APHIS PPQ, Bugwood.org
Minnesota First Detectors
K. E. Zylstra
Exit HolesPerfectly circular, size ranging from 1/8 to 3/8 inch diameter
K. E. Zylstra
Minnesota First Detectors
K. E. Zylstra
Minnesota First Detectors
Which Damage is from a Wood Wasp?
0%
0%
0% A. Damage A
B. Damage B
C. Damage C
BA
D. Lance, USDA APHIS PPQ, Bugwood.org
C
D.
Ha
ug
en
, U
.S.
F.S
., B
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.org
R..
Bil
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gs
, T
X F
.S.,
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J.
Ho
dg
e,
Un
iv.
of
Ke
ntu
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y,
Bu
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d.o
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Minnesota First Detectors
K. E. Zylstra
K. E. Zylstra