Agronomy,
Год журнала:
2024,
Номер
14(12), С. 2938 - 2938
Опубликована: Дек. 10, 2024
Maize
is
a
major
cereal
crop
worldwide,
and
its
stable
production
essential
for
national
global
food
security.
Pests
are
among
the
key
factors
affecting
yield
quality
of
maize.
Therefore,
it
crucial
to
evaluate
recovery
losses
after
implementing
control
measures
against
pests
during
different
periods.
In
this
study,
we
investigated
population
dynamics
main
maize
in
South
China
assessed
treated
with
effective
these
The
results
showed
that
fall
armyworm
(FAW),
Spodoptera
frugiperda,
was
most
severe
pest
autumn
There
10.02%
decrease
ear
weight
when
no
were
taken
at
fourth-leaf
stage,
there
80.45%
76.09%
increases
damage
index
tasseling
blister
stages,
respectively.
Additionally,
tannin
content
kernels
increased
by
26.28%
throughout
entire
growing
period.
These
findings
will
increase
farmers’
knowledge
regarding
detrimental
effects
FAW
provide
theoretical
basis
reasonable
timely
pests.
Insects,
Год журнала:
2024,
Номер
15(3), С. 205 - 205
Опубликована: Март 19, 2024
Spodopotera
frugiperda
is
a
worldwide
invasive
pest
that
has
caused
significant
economic
damage.
According
to
the
classical
biological
control
approach,
natural
enemies
can
pests
come
from
same
area
of
origin
as
have
experienced
coadaptation
processes.
However,
new
association’s
approach
suggests
local
are
equally
capable
controlling
pests.
Due
lack
data
on
association
S.
and
enemies,
research
was
conducted
through
rapid
survey
study
diversity
parasitoids
associated
with
frugiperda.
The
results
showed
15
parasitoid
species
Four
egg
parasitoids,
eight
larval
three
larval–pupal
were
found
be
for
years
after
it
first
discovered
in
Indonesia.
Eleven
them
reports
A
between
twelve
species,
consisting
(Platygasteridaesp.01,
Platygasteridaesp.02,
Telenomus
remus),
six
(Apanteles
sp.,
Microplitis
Campoletis
Coccygidium
Eupelmus
Stenobracon
sp.),
(Brachymeria
lasus,
B.
femorata,
Charops
sp.).
remus
most
dominant
parasitoid,
higher
abundance
parasitism
rate.
result
another
method
selecting
using
since
foster
quick
adaptation
Spodopotera
frugiperda
is
a
worldwide
invasive
pest
that
has
caused
major
economic
damage.
According
to
classical
biological
control
theory,
natural
enemies
can
pests
come
from
the
area
of
origin
as
have
gone
through
coadaptation
processes.
However,
new
association’s
approach
suggests
local
are
equally
capable
pests.
Due
lack
data
on
association
S.
and
enemies,
research
was
conducted
rapid
survey
study
population
density
in
Yogyakarta,
Indonesia
diversity
parasitoid
associated
with
frugiperda.
The
results
showed
difference
parasitism
rate,
15
species
Four
egg
parasitoids,
eight
larval
three
pupal
parasitoids
were
found
be
for
years
after
it
first
discovered
Indonesia.
A
between
species,
consisting
two
(Platygasteridaesp.01
Platygasteridaesp.02)
(Eupelmidaesp.01).
relatively
(Coccygidium
sp.
Stenobracon
sp.),
an
existing
seven
including
Telenomus
remus,
(Cotesia
sp.,
Microplitis
Campoletis
(Brachymeria
lasus,
B.
femorata,
Charops
sp.).
remus
most
dominant
parasitoid,
higher
abundance
rate.
This
also
reported
findings
Megaselia
scalaris
result
another
method
using
since
foster
quick
adaptation
Toxics,
Год журнала:
2025,
Номер
13(2), С. 94 - 94
Опубликована: Янв. 26, 2025
Spodoptera
frugiperda
(Lepidoptera:
Noctuidae)
and
Tenebrio
molitor
(Coleoptera:
Tenebrionidae)
are
two
prominent
pests
of
maize
its
stored
grains,
respectively.
Botanical
pesticides
have
been
proposed
as
an
alternative
for
their
management.
This
study
evaluated
the
insecticidal
activity
Salvia
connivens
(Lamiaceae)
methanolic
extract
rosmarinic
acid
against
S.
T.
by
adding
them
to
artificial
diet,
well
ecotoxicological
effects
on
Poecilia
reticulata
(Cyprinodontiformes:
Poeciliidae)
Danio
rerio
(Cypriniformes:
Danionidae)
through
acute
toxicity
tests.
The
showed
higher
mortality
(LC50
=
874.28
ppm)
than
1856.94
was
non-toxic
fish.
Rosmarinic
acid,
most
abundant
compound
in
(80.45
mg
g-1),
176.81
ppm).
did
not
cause
a
toxic
effect
adult
P.
at
tested
concentrations.
However,
fingerlings
D.
adults,
it
non-toxic,
except
embryos,
where
slightly
toxic.
These
findings
suggest
that
has
potential
botanical
product
management
with
low
impact,
while
may
be
useful
frugiperda.
Insect Science,
Год журнала:
2023,
Номер
31(4), С. 1313 - 1325
Опубликована: Дек. 6, 2023
Abstract
Interspecific
competition
is
an
important
factor
in
the
population
dynamics
and
geographical
distribution
of
insect
populations.
Fall
armyworm
(FAW),
Spodoptera
frugiperda
,
invasive
species,
Asian
corn
borer
(ACB),
Ostrinia
furnacalis
a
native
pest
species
are
major
pests
on
maize
China,
posing
threat
to
yield
grain
quality.
A
series
laboratory,
greenhouse,
field
experiments
were
conducted
elucidate
competitive
interactions
between
FAW
ACB.
In
laboratory
experiments,
exhibited
aggressive
behaviors
more
frequently
when
compared
with
ACB,
while
latter
defense
frequently.
Higher
intraspecific
was
recorded
conspecific
rather
than
particularly
6th
larval
stage.
had
higher
interspecific
advantage
through
intraguild
predation
over
resulting
partial
or
complete
displacement
ACB
initially
ratio
2
1
:
1.
The
also
significantly
influenced
parameters,
defensive
enzymes,
nutrient
these
species.
Competitive
interaction
proved
that
response
superoxide,
catalase,
soluble
protein
increased,
whereas
total
sugar
content
both
substantially
decreased.
Survival
rate,
plant
damage
co‐infested
by
varied
among
sequential
combinations
under
greenhouse
conditions.
consistently
stronger
aggression
conditions
co‐existing
same
feeding
guild.
These
findings
contribute
efforts
toward
improvement
integrated
management
programs
for
FAW,
decision
making
pests’
strategies
reduce
high
risks
outbreaks.
Journal of Integrative Agriculture,
Год журнала:
2023,
Номер
23(4), С. 1300 - 1314
Опубликована: Сен. 20, 2023
The
invasive
fall
armyworm
Spodoptera
frugiperda
(J.
E.
Smith)
invaded
Asia
in
2018,
colonizing
the
tropical
and
southern
subtropical
regions
as
well
migrating
with
monsoons
into
Northeast
during
spring
summer.
This
has
resulted
widespread
infestations,
significant
impacts
on
maize
production
various
Asian
countries.
Previous
studies
have
shown
that
invasion
of
this
pest
can
alter
species
relationships
pests,
but
actual
impact
management
is
still
unclear.
study
investigated
changes
occurrence
pesticide
use
annual
breeding
areas
S.
Yunnan
Province
Guangxi
Zhuang
Autonomous
Region
China
2017-2021,
based
surveys
interviews
small
farmers
production.
results
showed
emerged
dominant
among
pests
after
colonization,
replacing
traditional
such
Ostrinia
furnacalis,
litura,
Agrotis
ypsilon,
Rhopalosiphum
maidis.
variety
pesticides
used
for
control
changed
from
Chlorpyrifos,
Lambda-cyhalothrin,
Acetamiprid
to
Emamectin
benzoate-based
high
effectiveness
against
frugiperda.
Furthermore,
frequency
chemical
applications
increased
an
average
5.88
7.21
times
per
season,
amounts
summer
autumn
being
significantly
higher
than
winter
maize,
thereby
increasing
application
costs
by
more
35%.
clarified
community
succession
south
China,
providing
a
baseline
modifying
regional
strategies
relatively
new
pest.