Chemical and Biological Technologies in Agriculture,
Год журнала:
2024,
Номер
11(1)
Опубликована: Ноя. 7, 2024
Abstract
Background
The
polyphagous
notorious
pest,
black
cutworm,
Agrotis
ipsilon
(Hufnagel)
(Lepidoptera:
Noctuidae),
cause
significant
production
losses
due
to
its
distinctive
feeding
and
hiding
behavior,
making
it
particularly
challenging
control
with
conventional
methods.
Therefore,
sustainable
agriculture
demands
more
effective
environmentally
safe
pest
solutions.
This
study
aimed
investigate
the
toxicity
of
two
insecticide
alternatives,
entomopathogenic
fungus
(EPF)
Beauveria
bassiana
Solanum
lycopersicum
extract
(Tomato
plant
crude
extract,
TPCE),
using
bioassay
methods:
poisoned
bait
method
leaf
dipping
method.
In
addition,
impact
these
biological
tools
on
larval
development
protein
profiles
was
evaluated.
Results
application
both
tested
materials
exhibited
higher
than
method,
as
indicated
by
index.
LC
50
values
for
B.
were
1.6
×
10⁸
1.8
10⁶
conidia
ml
−1
baits
respectively.
For
TPCE,
4.35
1.51
mg
same
methods,
sublethal
concentrations
altered
pupal
durations.
significantly
reduced
concentration
hemolymph
protein.
A
maximum
12
bands
in
sample,
molecular
weights
(Mw)
ranging
between
35
120
kDa,
detected
sodium
dodecyl
sulfate–polyacrylamide
gel
electrophoresis
(SDS–PAGE).
-treated
larvae,
ten
Mw
from
kDa.
At
least
seven
TPCE-treated
97
Conclusions
findings
this
can
be
integrated
into
management
programs
A.
.
availability
TPCE
Egypt
their
cost-effectiveness
alternatives
support
use
critical
pest.
These
methods
are
when
applied
form.
Graphical
Insects,
Год журнала:
2024,
Номер
15(9), С. 705 - 705
Опубликована: Сен. 16, 2024
Spodoptera
frugiperda
(J.E.
Smith)
(Noctuidae:
Lepidoptera)
is
a
notable
insect
pest
that
invades
major
cereal
crops,
causing
significant
damage
and
loss.
Resistances
of
2nd
instar
larvae
two
Egyptian
field
populations
S.
frugiperda,
collected
from
the
Fayoum
Giza
governments,
were
measured
against
eight
insecticides,
including
traditional
insecticides
(profenofos
cypermethrin),
bio-insecticides
(emamectin
benzoate,
spinosad,
Bacillus
thuringiensis),
growth
regulators
(IGRs)
(lufenuron,
diflubenzuron,
methoxyfenozide).
In
addition,
synergistic
effects
three
synergists
(Piperonyl
butoxide
(PBO),
diethyl
maleate
(DEM),
triphenyl
phosphate
(TPP)
assessed,
activities
detoxification
enzymes
(acetylcholine
esterase
(AChE),
cytochrome
P-450
(CYP-450),
carboxylesterase
(CarE),
glutathione-s-transferase
(GST)
also
determined.
Resistance
surveillance
revealed
population
showed
moderate
resistance
to
cypermethrin
(RR
=
5.75-fold),
followed
by
spinosad
2.62-fold),
lufenuron
(2.01-fold).
On
other
hand,
exhibited
only
3.65-fold).
Our
results
emamectin
benzoate
was
most
effective
insecticide,
with
an
LC50
value
0.003
mg/L
for
0.001
population,
compared
susceptible
strain
(0.005
mg/L).
Among
biological
thuringiensis
least
toxic
insecticide
all
tested
strains.
Synergism
assays
indicated
DEM
TPP
had
effect
on
(SR
8.00-fold
both),
PBO
5.71-fold)
alone.
The
assay
GST
activity
significantly
(p
<
0.05)
increased
in
strains
strain.
However,
no
changes
observed
among
CYP-450,
CarE,
or
AChE.
findings
this
study
provide
substantial
insights
into
tracking
managing
development
Egypt.
Insects,
Год журнала:
2024,
Номер
15(6), С. 450 - 450
Опубликована: Июнь 13, 2024
Cyantraniliprole
is
a
novel
anthranilic
diamide
insecticide
registered
for
controlling
chewing
and
sucking
insect
pests.
Here,
the
lethal
sublethal
effects
of
this
on
two
destructive
lepidopteran
pests,
Journal of Plant Protection Research,
Год журнала:
2024,
Номер
unknown, С. 127 - 138
Опубликована: Апрель 9, 2024
The
use
of
essential
oils
as
an
eco-friendly
tool
in
pest
management
stems
from
their
natural
origin
and
the
presence
bioactive
compounds
that
exhibit
pesticidal
properties,
offering
a
sustainable
alternative
to
synthetic
chemical
pesticides.
This
study
explores
toxicity
Lavandula
multifida
(lavender)
oil
(EO),
botanical
pesticide
against
two
widespread
destructive
Noctuidae
pests,
Spodoptera
littoralis
(Boisd.)
Agrotis
ipsilon
(Hufnagel).
GC-MS
was
employed
characterize
23
EO,
with
1,3,3-trimethyl-2-oxabicyclo
[2.2.2]
octane
(eucalyptol)
(39.84%),
being
primary
component.
leaf
dipping
technique
utilized
assess
EO
both
insects.
At
96
hours
post-treatment,
LC50
lavender
S.
A.
larvae
were
2.350
2.991
mg
·
ml–1,
respectively.
Concerning
its
biological
effect,
concentrations
(LC15
LC50)
significantly
shortened
duration
larval
(to
15.24
14.23
days)
pupal
11.19
10.55
stages
littoralis.
Biochemical
assays
revealed
inhibited
α-esterase
activity
at
72-
post-treatment
(0.031
0.063
mmol
min–1
mg–1),
(0.129
mg–1
protein).
Given
significant
toxicological,
biological,
biochemical
effects
on
littoralis,
it
is
suggested
could
be
considered
for
integrated
strategies
while
ensuring
safe
application
protect
non-target
organisms.
RSC Advances,
Год журнала:
2025,
Номер
15(8), С. 6050 - 6067
Опубликована: Янв. 1, 2025
Several
fused/binary
pyrazole
quinolinone
hybrids
are
synthesized
via
tandem
reactions
and
their
insecticidal
efficacy
against
S.
littoralis
A.
gossypii
evaluated.
Agronomy,
Год журнала:
2024,
Номер
14(8), С. 1690 - 1690
Опубликована: Июль 31, 2024
Spodoptera
frugiperda
(J.E.
Smith)
is
a
crucial
agricultural
pest
owing
to
its
global
impact
on
>300
crops.
Among
these,
the
corn
strain
of
S.
causes
significant
damage
maize
(Zea
mays
L.).
However,
limited
research
exists
influence
nutrients
metamorphosis
and
underlying
mechanisms.
In
this
study,
effects
different
growth
stages
leaves,
namely,
tender
leaves
(tender)
mature
(mature),
various
aspects
larval
development,
including
body
weight,
length,
developmental
age,
pupation
rate,
eclosion
were
investigated.
Additionally,
we
measured
levels
20-hydroxyecdysone
(20E)
three
types
juvenile
hormone
(JH;
i.e.,
JH
I–III)
in
larvae
fed
or
mature.
The
results
revealed
that
Tender
exhibited
significantly
prolonged
instar
duration,
reduced
weight
decreased
rates,
with
emergence
abnormal
adults.
Analysis
nutritional
components
higher
amino
acids,
soluble
sugars,
sterols
than
tender.
Hormone
analysis
20E
titers
individuals
feeding
during
prepupal
pupal
stages.
We
demonstrated
role
regulating
level
rate
frugiperda.
Based
these
findings,
propose
isoleucine,
arginine,
glutamic
acid,
sucrose,
campesterol,
β-sitosterol
serve
as
key
influencing
development
Moreover,
factor
interaction
between
Our
provide
reference
for
control
strategy
based
breeding
insect-resistant
varieties
by
altering
host
nutrition.
