Ethanol release patterns and captures of Xylosandrus spp. (Coleoptera: Curculionidae) in ornamental nursery
Journal of Economic Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 10, 2025
Abstract
Xylosandrus
crassiusculus
Motschulsky
and
germanus
Blandford
are
serious
ambrosia
beetle
pests
in
ornamental
nurseries.
Three
ethanol
baits,
AgBio
low
release
(LR),
high
(HR),
Trécé
commercially
available
for
use
bottle
traps
to
determine
flight
activity
of
adult
spp.
However,
patterns
from
these
baits
under
varying
temperatures
captures
poorly
understood.
Thus,
the
objectives
this
study
were
(i)
rates
constant
variable
(ii)
compare
relative
using
When
3-d
difference
(3-d
difference)
bait
weights
recorded
15.6,
21.1,
26.7,
32.2
°C,
an
increase
was
with
temperature
15.6
°C
LR
bait.
At
no
or
reduction
3-d-difference
found
HR
respectively,
compared
The
steady
all
3
when
gradually
increased
decreased
sequence
30
d.
In
2022,
2023,
2024,
although
captured
X.
germanus,
significantly
more
numbers
than
other
2
2022
greater
baits.
can
effectively
detect
early
adults
Язык: Английский
Ornamental nurseries adjacent to hardwood-dominated woodlots pose more risk from exotic ambrosia beetles (Xylosandrus spp.) (Coleoptera: Curculionidae: Scolytinae) than pine-dominated woodlots
Environmental Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 7, 2025
Exotic
granulate
ambrosia
beetle,
Xylosandrus
crassiusculus
(Motschulsky),
black
stem
borer,
germanus
(Blandford),
and
twig
compactus
(Eichhoff)
are
serious
pests
of
woody
ornamental
trees
in
nurseries.
Woodlots
often
surround
nurseries,
where
the
beetles
fly
into
nurseries
attack
young
trees.
The
woodlots
either
dominated
by
hardwood
trees,
such
as
Oaks
(Oak
spp.),
maples
(Acer
or
pine
mainly
loblolly
(Pinus
taeda
L.).
It
is
unclear
if
woodlot
type
would
influence
abundance
beetle
flying
outside
woodlot.
Thus,
this
study
aimed
to
determine
whether
pine-dominated
stand
affects
relative
In
2023
2024,
experiments
were
conducted
deploying
3
ethanol-lured
plastic
bottle
traps
4
mid-Georgia
(USA).
overall
captures
X.
significantly
greater
than
both
years.
numbers
collected
not
consistently
different
between
for
most
sampling
dates.
influenced
type.
This
suggests
that
although
from
years,
risk
infestation
adjacent
woodlots.
Язык: Английский
Ethanol: dose-dependent flight responses of bark and woodboring beetles, and associated species of Coleoptera
Environmental Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 10, 2025
Abstract
In
2007
to
2008,
I
assessed
the
effects
of
ethanol
release
rate
(dose)
on
trap
catches
bark
and
woodboring
beetles,
associated
species
predators,
in
6
experiments
north-central
Georgia.
Multiple-funnel
traps
were
baited
with
alone
or
co-baited
α-pinene
(with
without
beetle
pheromones
ipsenol
ipsdienol).
The
following
ambrosia
beetles
exhibited
a
positive
dose-dependent
response
ethanol,
regardless
co-baits:
Corthylus
columbianus
Hopkins,
Dryoxylon
onoharaense
(Murayama),
Hylastes
porculus
Erichson,
salebrosus
Eichhoff,
Hylobius
pales
(Herbst),
Monarthrum
fasciatum
(Say),
Orthotomicus
caelatus
(Eichhoff),
Xyleborinus
saxesenii
(Ratzeburg),
Xyleborus
species,
Xylosandrus
crassiusculus
(Motschulsky)
(Coleoptera:
Curculionidae).
tenuis
Eichhoff
Curculionidae)
but
not
when
α-pinene,
pheromones.
A
consistent
negative
was
by
Ips
grandicollis
(Eichhoff)
whereas
results
avulsus
Dendroctonus
terebrans
(Olivier)
variable.
Longhorn
unaffected
dose
except
for
Curius
dentatus
Newman
Cerambycidae),
which
ethanol.
Three
predators
responses
ethanol:
Temnoscheila
virescens
(F.)
Trogossitidae),
Platysoma
parallelum
(Say)
Histeridae),
Lasconotus
Zopheridae).
Ethanol
is
key
kairomone
many
beetles.
Язык: Английский
Ethanol concentration can influence the outcomes of insecticide evaluation of ambrosia beetle attacks using wood bolts
Florida Entomologist,
Год журнала:
2025,
Номер
108(1)
Опубликована: Янв. 1, 2025
Abstract
The
granulate
ambrosia
beetle,
Xylosandrus
crassiusculus
(Motschulsky),
and
the
black
stem
borer,
germanus
(Blandford)
(Coleoptera:
Curculionidae:
Scolytinae),
are
important
pests
of
ornamental,
fruit
nut
trees
in
eastern
USA.
A
commonly
employed
method
evaluating
insecticide
efficacy
against
beetles
relies
on
treating
tree
bolts
infused
with
≥50
%
ethanol,
which
highly
attractive
to
beetles.
We
conducted
experiments
at
three
locations
test
hypothesis
that
marginally
effective
insecticides
may
be
better
demonstrated
using
10
ethanol
than
where
latter
so
overcome
effects
insecticides.
tested
this
study
were
half
fully
labeled
application
rates
bifenthrin,
reducing
beetle
attacks,
full
rate
indoxacarb,
was
reported
have
marginal
efficacy.
On
50
attacks
(i.e.
numbers
entry
holes)
lower
those
treated
half-rate
bifenthrin
untreated
ones.
Attacks
too
low
allow
for
detection
statistical
differences
among
treatments.
confirmed
indoxacarb
ineffective
regardless
concentration.
conclude
current
evaluation
system
should
continue
employ
ethanol.
Язык: Английский