Journal of Pest Science,
Год журнала:
2022,
Номер
96(1), С. 105 - 117
Опубликована: Фев. 28, 2022
Abstract
Trichogramma
spp.
(Hymenoptera:
Trichogrammatidae)
are
generalist
egg
parasitoids
widely
used
as
biological
control
agents,
yet
with
limited
efficacy
against
Tuta
absoluta
(Meyrick;
Lepidoptera:
Gelechiidae),
a
key
pest
of
tomato.
Olfactory
cues
related
to
the
host-plant
complex
influence
searching
behavior
in
parasitoids.
Studies
have
shown
that
female
can
learn
odor
affecting
their
preference.
We
assessed
if
learning
increases
response
tomato
and
whether
it
improves
parasitism
rate
achaeae
,
evanescens,
dendrolimi
.
The
were
either
naive,
reared
for
one
generation
on
T.
eggs,
or
conditioned
associatively
an
oviposition
experience
factitious
host
presence
odor.
Subsequently,
arrestment
(searching
time)
-infested
leaves
was
observed
static
four-chamber
olfactometer.
Rearing
increased
time
strongly
evanescens
slightly
but
not
In
contrast,
(leaves
extract)
did
improve
dendrolimi.
Concerning
improvement,
only
showed
after
associative
learning.
Hence,
capacity
should
be
further
explored
its
Entomologia Generalis,
Год журнала:
2023,
Номер
43(6), С. 1171 - 1181
Опубликована: Ноя. 24, 2023
Tuta
absoluta
(Meyrick)
is
a
cosmopolitan
invader
and
one
of
the
most
serious
pests
tomato.This
pest
has
expanded
rapidly
in
China
since
it
initially
invaded
Xinjiang
northwest
2017
Yunnan
south
early
2018.More
complete
knowledge
migration
patterns
genetic
structure
this
important
for
implementing
effective
management
strategies.To
fill
gap,
COI
gene
T.
was
sequenced
based
on
nationwide
routine
monitoring.This
study
showed
new
invasion
into
Gansu
Inner
Mongolia,
indicating
ongoing
expansion
pest.Most
populations
absoluta,
both
worldwide,
have
high
homogeneity.Nevertheless,
some
degree
variability
found
southern
China,
especially
Yunnan.Two
distinct
haplogroups
were
distinguished,
clade
A
predominant
at
global
level.The
level
sequence
divergence
indicated
possible
existence
cryptic
species.Furthermore,
F
ST
analysis
molecular
variance
(AMOVA)
revealed
weak
but
significant
differentiation
between
northwestern
group
group/subgroups
provides
compelling
evidence
different
dispersal
avenues
China.T.
likely
established
bridgehead
then
spread
throughout
province
neighboring
territories
China.Knowledge
regarding
diversity,
population
pattern
valuable
improving
guidelines
pest.Strict
plant
quarantines,
local
eradication
practical
control
measures
are
needed
to
solve
problem
caused
by
absoluta.
Frontiers in Genetics,
Год журнала:
2022,
Номер
13
Опубликована: Май 19, 2022
The
tomato
leaf
miner
Tuta
absoluta
(Meyrick)
is
one
of
the
world's
most
destructive
pests
tomato,
and
because
its
severe
economic
impacts,
as
well
development
pesticide
resistance,
species
has
been
intensively
studied,
especially
in
regard
to
identification
targets
for
T.
control.
However,
functional
genomic
studies
have
constrained
by
a
lack
effective
genetic
tools.
Therefore,
aim
present
study
was
develop
CRISPR/Cas9
zygote
microinjection
protocol
generating
heritable
mutations
absoluta,
using
ommochrome
synthesis
gene
cinnabar
an
easily
evaluated
target
gene.
injection
fertilised
eggs
with
Cas9
protein
four
sgRNAs,
which
targeted
exon
3,
resulted
mutagenesis
rate
31.9%
reaching
adulthood,
either
red
or
mosaic
eye
colour
phenotypes.
As
such,
this
first
report
complete
detailed
workflow
efficient
genome
editing
globally
important
invasive
pest
absoluta.
application
robust
genome-editing
tool
will
greatly
facilitate
discovery
suitable
RNAi
control
subsequent
novel
strategies.
Journal of Applied Entomology,
Год журнала:
2023,
Номер
147(10), С. 895 - 907
Опубликована: Сен. 14, 2023
Abstract
The
Tuta
absoluta
(Meyrick)
(Lepidoptera:
Gelechiidae)
originated
in
South
America
and
is
a
major
pest
of
the
economically
critical
solanaceous
crops.
It
devastating
to
tomatoes,
attacking
mainly
leaves,
stems,
flowers
fruits
tomato
plants,
can
cause
up
100%
damage.
T.
invaded
China
2017
expanded
rapidly,
severely
impacting
industry.
To
illustrate
detailed
potential
distribution
China,
we
used
CLIMEX
MaxEnt
models
predict
this
using
historical
future
climate
data.
predicts
wider
area
for
than
MaxEnt,
which
suggests
that
most
suitable
its
distribution,
except
Tarim
Basin
southern
Xinjiang,
western
Inner
Mongolia
northwestern
Gansu.
Both
accurately
predicted
known
provinces
Yunnan
Guangxi,
predictions
by
both
suggest
total
range
increase
slightly
with
changes
temperature.
These
will
help
understand
influence
change
on
thus
provide
theoretical
foundation
developing
early
monitoring,
quarantine
control
strategies.
Journal of Pest Science,
Год журнала:
2022,
Номер
96(1), С. 105 - 117
Опубликована: Фев. 28, 2022
Abstract
Trichogramma
spp.
(Hymenoptera:
Trichogrammatidae)
are
generalist
egg
parasitoids
widely
used
as
biological
control
agents,
yet
with
limited
efficacy
against
Tuta
absoluta
(Meyrick;
Lepidoptera:
Gelechiidae),
a
key
pest
of
tomato.
Olfactory
cues
related
to
the
host-plant
complex
influence
searching
behavior
in
parasitoids.
Studies
have
shown
that
female
can
learn
odor
affecting
their
preference.
We
assessed
if
learning
increases
response
tomato
and
whether
it
improves
parasitism
rate
achaeae
,
evanescens,
dendrolimi
.
The
were
either
naive,
reared
for
one
generation
on
T.
eggs,
or
conditioned
associatively
an
oviposition
experience
factitious
host
presence
odor.
Subsequently,
arrestment
(searching
time)
-infested
leaves
was
observed
static
four-chamber
olfactometer.
Rearing
increased
time
strongly
evanescens
slightly
but
not
In
contrast,
(leaves
extract)
did
improve
dendrolimi.
Concerning
improvement,
only
showed
after
associative
learning.
Hence,
capacity
should
be
further
explored
its
