PLoS ONE,
Год журнала:
2020,
Номер
15(4), С. e0231098 - e0231098
Опубликована: Апрель 21, 2020
Trichogramma
leucaniae
is
believed
to
be
an
efficient
biological
control
agent
for
controlling
the
soybean
pod
borer
[SPB;
Leguminivora
glycinivorella].
The
large
eggs
of
Chinese
oak
silkworm,
Antheraea
pernyi,
are
one
best
alternative
host
mass
production
Trichogramma.
However,
they
considered
poor
growth
and
development
T.
leucaniae.
Here,
we
determine
feasibility
successive
rearings
on
eight
generations
evaluated
their
capacity
parasitizing
SPB
different
ages.
In
first
four
generations,
suitability
reared
exhibited
a
significant
increasing
tendency
then
decreased
with
thereafter.
percentage
parasitized
number
emerged
adults
per
egg
were
increased
from
40.0%
10.8
adults/egg
in
F1
generation
86.7%
36.4
F4
respectively.
addition,
A.
pernyi
significantly
more
regardless
age
compared
those
Corcyra
cephalonica
eggs.
These
results
provided
useful
information
by
Scientific Reports,
Год журнала:
2021,
Номер
11(1)
Опубликована: Май 24, 2021
Ecologists
study
how
populations
are
regulated,
while
scientists
studying
biological
pest
control
apply
population
regulation
processes
to
reduce
numbers
of
harmful
organisms:
an
organism
(a
natural
enemy)
is
used
the
density
another
pest).
Finding
effective
agent
among
tens
hundreds
enemies
a
daunting
task.
Evaluation
criteria
help
in
first
selection
remove
clearly
ineffective
or
risky
species
from
list
candidates.
Next,
we
propose
use
aggregate
evaluation
criterion,
kill
rate,
compare
reduction
capacity
not
eliminated
during
selection.
The
rate
average
daily
lifetime
killing
by
enemy
under
consideration.
Pest
rates
six
predators
and
seven
parasitoids
Tuta
absoluta
were
calculated
compared.
Several
had
that
too
low
be
able
theoretically
below
crop
damaging
densities.
Other
showed
high
their
potential
for
practical
application
can
now
tested
commercial
production
conditions.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 28, 2025
Tuta
absoluta
(Meyrick)
(Lepidoptera:
Gelechiidae)
is
a
highly
adaptable
and
destructive
pest
of
tomato
crops,
posing
significant
threat
to
global
agriculture
due
its
rapid
spread
resistance
control
measures.
This
study
investigates
the
developmental
rates
population
parameters
T.
larvae
when
transferred
between
three
host
plants—tomato,
eggplant,
tobacco—across
four
distinct
larval
instars.
Larvae
were
reared
under
controlled
environmental
conditions
(25
±
1
°C,
60
5%
RH,
16L:8D
photoperiod)
these
hosts
at
first
fourth
Life
table
analyses,
including
such
as
net
reproductive
rate
(R₀)
intrinsic
increase
(r),
used
evaluate
times,
survival,
potential
across
different
hosts.
The
results
showed
that
could
complete
life
cycle
on
all
plants,
although
tobacco
significantly
prolonged
periods,
likely
high
nicotine
content,
making
it
less
suitable
host.
In
contrast,
supported
most
optimal
development,
while
third-instar
eggplant
exhibited
higher
performance
than
those
solely
tomato.
These
findings
suggest
shows
increased
adaptability
later
stages.
highlights
pest's
ability
exploit
hosts,
particularly
from
third
instar
onward,
underscores
importance
selection
in
shaping
management
strategies.
have
implications
for
integrated
(IPM)
approaches,
emphasizing
targeted
interventions
based
plant
suitability
stage.
Biological Control,
Год журнала:
2024,
Номер
191, С. 105464 - 105464
Опубликована: Фев. 16, 2024
New
strategies
are
urgently
needed
to
control
Tuta
absoluta
(Meyrick)
(Lepidoptera:
Gelechiidae),
one
of
the
most
destructive
pests
tomato
crops.
Originating
from
South
America,
it
is
spreading
rapidly
and
has
evolved
resistance
common
insecticides
making
highly
challenging
control.
Regarding
biological
control,
parasitoid
Necremnus
tutae
Ribes
&
Bernardo
(Hymenoptera:
Eulophidae)
widely
present
around
Mediterranean
basin
adapted
invader
playing
a
substantial
role
in
its
In
addition,
neotropical
Dolichogenidea
gelechiidivoris
Marsh
Braconidae)
established
accidentally
following
host
Spain
Algeria
classical
program
using
this
species
ongoing
Sub-Saharan
Africa.
Understanding
trophic
connections
between
D.
gelechiidivoris,
N.
tutae,
targeted
T.
potential
non-target
hosts
essential
assess
their
value
as
augmentative
or
agents
promote
establishment
conservation
biocontrol.
We
conducted
host-specificity
tests
laboratory
four
European
leafminer
evaluate
specificity
these
two
parasitoids
absoluta.
then
assessed
affinity
for
by
exposing
sentinel
plants
with
alternative
Phthorimaea
operculella
(Zeller)
Gelechiidae)
inside
greenhouses
measuring
each
species'
field
parasitism
rate.
Our
results
show
that
tested
laboratory,
attacked
three,
while
only
P.
operculella.
greenhouse,
did
not
prefer
absoluta,
whereas
preferred
latter.
The
mean
rate
over
three
months
monitoring
period
reached
27
%
35
gelechiidivoris.
discuss
importance
understanding
effects
natural
enemy
can
have
Insects,
Год журнала:
2022,
Номер
13(6), С. 496 - 496
Опубликована: Май 25, 2022
Associations
between
the
South
American
tomato
pinworm,
Tuta
absoluta
(Meyrick)
(Lepidoptera:
Gelechiidae),
and
its
native
parasitoids
need
to
be
updated
increase
implementation
of
pest
control
strategies.
In
this
study,
T.
absoluta-infested
plants
were
collected
from
three
regions
in
Kenya.
The
emerged
identified,
their
abundance
was
correlated
with
agroecological
parameters,
viz.
cropping
systems,
predator
Nesidiocoris
tenuis
Reuter
(Hemiptera:
Miridae).
study
further
conducted
a
habitat
suitability
prediction
for
identified
parasitoids.
Two
parasitoid
species,
Bracon
nigricans
(Szépligeti)
(Hymenoptera:
Braconidae)
Stenomesius
sp.
near
japonicus
(Ashmead)
Eulophidae)
immature
stages,
parasitism
rates
ranging
0
21%
17%
respectively.
Insecticide
application
open
field
negatively
influenced
by
S.
nr
japonicus.
Low
occurrence
N.
positively
affected
B.
parasitism.
predicted
species
indicated
vast
suitable
areas
sub-Saharan
Africa,
Australia,
America.
observed
Africa.
Therefore,
parasitoids,
especially
could
considered
as
biocontrol
agent
Integrated
Pest
Management
program
absoluta.
