Insects,
Год журнала:
2024,
Номер
16(1), С. 31 - 31
Опубликована: Дек. 31, 2024
The
olfactory
sensory
system
plays
vital
roles
in
daily
activities,
such
as
locating
mate
partners,
foraging,
and
risk
avoidance.
Natural
enemies
can
locate
their
prey
through
characteristic
volatiles.
However,
little
is
known
about
whether
recognize
the
volatiles
of
predators
if
this
recognition
increase
efficiency
escaping
from
predators.
Xylocoris
flavipes
a
predator
Tribolium
castaneum
(Herbst)
Oryzaephilus
surinamensis
(Linne)
that
has
been
widely
used
stored
pest
control.
Herein,
we
analyze
volatile
components
impacts
on
behavior
T.
O.
surinamensis.
We
found
preferred
blank
air
rather
than
odors
X.
emissions,
which
significantly
decreased
orientation
preference
to
wheat.
emits
three
major
volatiles,
including
linalool,
α-terpineol,
geraniol.
Y-tube
bioassays
showed
linalool
geraniol
at
certain
concentrations,
especially
200
μg/mL.
EAG
recordings
verified
elicit
higher
responses
two
pests,
but
very
small
were
observed
insects
α-terpineol.
A
further
repellency
evaluation
also
proved
are
repellent
be
slightly
enhanced
by
mixing
them
together.
perceiving
its
using
signals
for
escaping.
most
potent
geraniol,
may
have
potential
values
repellents
controlling
pests
these
products.
Plants,
Год журнала:
2024,
Номер
13(16), С. 2332 - 2332
Опубликована: Авг. 21, 2024
Aphids
pose
a
significant
threat
to
global
agricultural
crop
production,
leading
widespread
pesticide
use
and
resistance.
This
necessitates
the
of
alternative
substances,
like
plant
secondary
metabolites
(PSMs).
Plants
have
developed
protective
compounds
known
as
alkaloids,
terpenoids,
phenolics,
sulfur-
nitrogen-containing
metabolites.
These
exhibit
promising
characteristics
against
aphids,
such
antifeedant,
aphicidal,
disrupting
survival
fitness.
review
highlights
importance
application
in
combating
aphid
populations.
Different
insect-resistant
substances
different
mechanisms
for
managing
aphids
other
pests,
including
defensive
signaling,
inhibiting
growth,
attracting
natural
predators
by
releasing
herbivore-induced
volatiles
(HIPV).
The
biopesticides
has
proven
be
an
effective,
economical,
eco-friendly
synthetic
chemicals.
Furthermore,
this
comprehensively
discusses
principle
role
metabolites,
encouraging
sustainable
practices
emphasizing
integrated
management
population.
Journal of Economic Entomology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 13, 2025
Bottom-up
effects,
triggered
by
fertilization
regimes,
can
be
key
ecological
forces
regulating
pest
populations.
In
this
study,
we
investigated
the
effects
of
5
different
concentrations
Ca(NO3)2
(0,
2,
4,
6,
and
8
mM)
on
cotton
plants
performance
Aphis
gossypii.
Our
results
demonstrated
that
nitrogen
application
significantly
enhanced
growth
indices
seedlings
(eg
plant
height,
aboveground
fresh
weight)
biochemistry
parameters
nitrogen,
chlorophyll,
tannin).
Nitrogen
also
affected
life
history
A.
gossypii
longevity,
reproductive
days,
fecundity,
intrinsic
rate
increase,
finite
net
rate).
Notably,
positive
seedling
observed
at
6
mM
level
diminished
level.
Additionally,
highest
soluble
sugar
content
was
in
unfertilized
(the
0
treatment).
Electrical
penetration
graph
analysis
revealed
spent
less
time
intercellular
probing
more
feeding
phloem
with
increasing
levels,
suggesting
improved
nutrient
acquisition
from
phloem,
which
supported
increase
fecundity.
The
above
indicate
bottom-up
fertilizer
could
trigger
outbreaks
These
findings
provide
a
scientific
basis
for
optimizing
within
integrated
management
programs
so
as
to
protect
yields,
reduce
risk
aphid
outbreaks,
well
costs
labor
environment.
Pest Management Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 7, 2024
Herbivorous
insects
sustain
their
populations
by
oviposition.
To
reduce
the
damage
caused
herbivores,
host
plant
triggers
a
defensive
response
upon
detection
of
egg
deposition.
However,
specific
impact
deposition
time
cotton
bollworm
Helicoverpa
armigera
(Lepidoptera:
Noctuidae),
on
tomato
defense
remains
obscure.
Plant Cell & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 30, 2024
ABSTRACT
Wheat
(
Triticum
aestivum
L.)
is
one
of
the
most
important
staple
crops
all
over
world.
Its
productivity
adversely
affected
by
aphid
infestation.
Plant
volatiles
play
a
critical
role
in
plant
communication,
inducing
direct
and
indirect
defenses
against
insect
pests.
However,
little
known
about
priming
mechanism
key
wheat.
To
determine
whether
how
volatile
induced
defense
wheat
grain
Sitobion
avenae
,
combination
bioassays,
phytohormone
metabolite
quantification,
transcriptome
analyses
were
performed
using
an
damage‐induced
volatile,
methyl
salicylate
(MeSA).
MeSA
treatment
primed
for
enhanced
accumulation
salicylic
acid,
flavonoid
benzoxazinoids
(BXs),
increased
resistance
to
S.
attractiveness
parasitoid
Aphelinus
asychis
.
Supplementation
with
BX
(2,4‐dihydroxy‐7‐methoxy‐2H‐1,4‐benzoxazin‐3(4H)‐one)
two
flavonoids
(xanthohumol
isobavachalcone)
artificial
diet
impaired
survival,
development
fecundity
Moreover,
emission
especially
MeSA.
Functional
investigation
odorant‐binding
proteins
(OBPs)
A.
revealed
that
AasyOBP4
responsible
recognition
Taken
together,
our
results
provide
insights
into
molecular
MeSA‐mediated
propose
as
phytoprotectant
crop
protection
sustainable
agriculture.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Окт. 8, 2024
Introduction
Environmental
stresses,
such
as
soil
salinity
or
alkalinity,
usually
affect
crop
growth
and
secondary
plant
metabolism,
with
follow
on
effects
foliar-feeding
insects.
Nevertheless,
the
underlying
mechanism
of
how
saline-alkali
stress
affects
key
cotton
pest
Aphis
gossypii
Glover
is
poorly
understood.
Methods
In
this
study,
we
first
considered
three
types
(i.e.,
alone,
alkalinity
alone
–
both
at
different
concentration
their
mixed
effects)
plants.
We
then
measured
impacts
(1)
above
below
traits
(e.g.,
height,
leaf
area,
root
volume),
(2)
levels
nutrients
metabolites
in
leaves,
(3)
feeding
behavior,
life-table
parameters,
population
A.
.
used
a
path
analysis
to
evaluate
cascading
changes
(due
stress)
individual
aphids
aphid
populations.
Results
found
either
stresses
significantly
reduced
growth,
increased
content
tannin,
soluble
sugars,
proline
suppressed
development,
(including
longevity,
fecundity,
intrinsic
rate
increase)
growth.
Alkalinity
had
stronger
these
than
did
salinity.
Discussion
This
work
provides
insights
into
bottom-up
interaction
by
which
environmental
mediate
infestation
agricultural
ecosystem.
