Exam (elaborations)
TSU Horticulture-1301 Final Exam.
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TSU Horticulture-1301 Final Exam.
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TSUHorticulture-1301
Final
Exam
Steps
of
diagnosing
plant
disorders
-
ANS-Identify
the
affected
plant
and
determine
the
cause
of
the
problem
Metamorphosis
-
ANS-The
process
of
transformation
from
an
immature
form
to
an
adult
form
in
two
or
more
distinct
stages.
Complete
metamorphosis
-
ANS-Egg,
larva,
pupa
(dormant),
and
adult.
Incomplete
metamorphosis:
-
ANS-Egg,
nymphal
stages,
and
adult.
Chewing
Insects
-
ANS-Eat
plant
parts
rapidly
(larvae),
becoming
larger
and
more
damaging
as
they
mature.
Sucking
Insects
-
ANS-They
feed
on
the
sap
by
inserting
their
mouthparts
into
the
phloem.
Caterpillars,
Grubs,
Borers,
Leaf
miners,
Grasshoppers,
Beetles,
Earwigs,
Snails,
and
Slugs
are
all
examples
of...
-
ANS-Chewing
Insects
Aphids,
Whiteflies,
Mealybugs,
Scales,
Mites,
Thrips,
and
Nematodes
(Eelworms)
are
all
examples
of...
-
ANS-Sucking
Insects
Frost
damage
-
ANS-Overnight
wilting
on
the
uppermost
leaves
and
buds.
Winterkill
-
ANS-The
partial
or
total
death
of
normally
hardy
perennial
plants
due
to
cold
temperatures.
Drought
-
ANS-Wilting
is
the
main
symptom
of
drought
and
watering
revives
a
plant
in
a
drought
condition.
Soil
compaction
-
ANS-Constant
foot
or
equipment
traffic
causes
soil
compaction
around
plants.
The
air
spaces
normally
present
in
the
soil
are
compressed,
and
water
absorption
and
air
penetration
are
inhibited.
Allelopathy
-
ANS-It
is
the
injury
of
one
plant
by
another
via
the
excretion
of
toxic
substances. Treating
environmental
plant
disorders
-
ANS-Correct
the
condition
harming
the
plant
of
find
a
plant
that
can
tolerate
the
situation.
Good
plant
selection
can
often
prevent
these
disorders.
Excess
salts,
drought,
soil
compaction,
and
pH
are
examples
of...
-
ANS-Environmental
issues
that
can
be
corrected
Air
pollution,
winterkill,
and
reflected
heat
problems
are
examples
of...
-
ANS-Environmental
issues
that
cannot
be
corrected
Cultural
disease
control
-
ANS-Using
plant
care
techniques
that
minimize
disease
infection
and
spread
Sanitation
-
ANS-It
involves
removing
all
disease
harboring
materials
to
reduce
the
population
of
microorganisms.
Weeding
-
ANS-W eed
control;
Weeds
can
take
nutrients
from
your
plants
and
can
spread
Rust
fungi.
Pruning
-
ANS-A
valuable
control
technique
for
localized
disease
such
as
gall,
wilt,
and
canker .
The
infected
portion
of
the
plant
should
be
pruned
and
burned.
Roguing
-
ANS-It
involves
pulling
out
diseased
plants
to
stop
the
spread
to
others.
It
is
valuable
for
annual
plants
or
when
only
a
few
plants
are
infected
.
Crop
Rotation
-
ANS-It
involves
planting
a
different
species
in
an
area
each
year
instead
of
the
same
one
repeatedly .
It
is
a
valuable
control
for
soil
borne
diseases.
Resistant
Cultivars
and
Species
-
ANS-Horticultural
crops,
flowers,
and
landscape
plants
that
have
resistance
to
diseases
imparted
by
breeding.
It
is
one
of
the
best
disease
control
techniques.
Plant
Selection
and
Culture
-
ANS-Select
plants
that
are
not
seriously
affected
by
diseases
and
that
are
well
adapted
to
the
environment
in
which
they
are
to
grow .
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