Exam (elaborations) Agronomy Written T PART 1

_____
is
a
loss
that
occurs
before
harvest
begins.
-
ANSPreharvest
loss
_________
indicates
the
amount
of
time
it
takes
for
a
pesticide
to
biodegrade
or
break
down.
-
ANSPesticide
persistence
___________
are
flowering,
broad-leaf
plants
with
soft
stems.
-
ANSForbs
_____________
are
considered
to
be
healthy
fats
-
ANSPolyunsaturated
fats
_______________
is
made
from
the
endosperm
only.
-
ANSWhite
flour
__________________
are
absorbed
by
the
roots
or
other
plant
parts
and
moved
throughout
the
plant
by
vascular
tissues
-
ANST ranslocated
herbicides
A
_________
is
an
organism
that
benefits
from
a
prolonged
association
with
another
organism
or
host.
-
ANSparasite
A
__________
is
a
localized
diseased
area
or
lesion
that
is
discolored.
-
ANScanker
A
_____________
is
a
long
row
of
cut
hay.
-
ANSwindrow
A
_______________
license
is
required
for
people
applying
restricted-use
pesticides
to
produce
an
agricultural
commodity
on
property
they
own
or
control.
-
ANSprivate
applicator
A
(n)
_________
is
a
plant
that
can
fix
nitrogen
from
the
air
in
the
soil
-
ANSlegume
A
broadleaf
herbicide
is
applied
to
a
field
on
a
windy
day
and
is
blown
to
a
conservation
area.
How
is
the
conservation
area
classified?
-
ANSnontarget
area
A
farm
manager
calibrates
a
sprayer
to
deliver
30
GPA
(gallons
per
acre)
at
4
MPH.
However ,
the
operator
assigned
to
the
task
travels
at
6
MPH
(the
pressure
remains
constant).
What
is
the
result?
-
ANSThe
application
rate
falls
to
20
gallons
per
acre.
A
farmer
scouting
his
field
notes
that
weeds
have
reached
the
injury
threshold
throughout
the
entire
corn
field.
What
type
of
herbicide
application
would
be
his
best
choice?
-
ANSbroadcast A
farmer
wants
to
eliminate
ragweed
and
pigweed
that
are
competing
with
corn
in
a
field.
What
type
of
herbicide
should
she
use?
-
ANSa
selective
herbicide
A
forester
mixed
chemical
pesticides
and
applied
them
to
a
tree
using
recommended
procedures.
Afterwards,
he
used
the
bathroom,
and
then
washed
his
hands.
The
route
of
entry
of
pesticides
into
his
body
would
most
likely
occur
through
_____
exposure.
-
ANSdermal
A
grower
faced
a
situation
where
a
pest
appeared
to
be
eliminated
from
a
field,
and
after
a
few
weeks
the
pest
repopulated
the
field.
What
is
the
best
explanation
for
how
this
occurred?
-
ANSpest
resurgence
A
grower
has
a
choice
between
two
pesticides
that
are
both
labeled
for
use
against
a
particular
pest.
Pesticide
A
has
a
LD50
of
100,
and
pesticide
B
has
a
LD50
of
300.
What
can
he
conclude?
-
ANSPesticide
A
is
more
poisonous
than
pesticide
B.
A
grower
notices
that
a
crop
displays
yellow
streaking
and
stunted
growth
and
identifies
the
problem
as
virus-related.
How
would
this
type
of
disturbance
be
classified?
-
ANSinfectious
diseaseinfectious
disease
A
heavy
rainfall
causes
flooding
of
a
field.
Within
a
week
the
crop
shows
symptoms
of
disease
including
the
yellowing
of
leaves.
How
would
this
type
of
disturbance
be
classified?
-
ANSabiotic
disease
A
lawn
maintenance
company
promotes
its
weed
control
program.
What
is
the
type
of
application
in
terms
of
timing?
-
ANSpostemergence
A
park
maintenance
worker
wants
to
double
the
flow
rate
of
a
nozzle
from
0.25
GPM
at
15
psi
to
0.50
GPM.
How
would
she
change
the
pressure
to
double
the
flow
rate?
-
ANSincrease
it
to
60
psi
A
pesticide
user
sees
the
letters
(EC),
(WP),
(DF),
(S),
(G),
and
(D)
on
various
pesticide
products.
What
do
these
letters
represent?
-
ANSformulations
A
soybean
seed
consists
of
an
embryo,
two
cotyledons,
and
a
seed
coat
called
a
__________.
-
ANStesta
A
susceptible
host
plant,
a
disease-producing
agent,
and
a
favorable
environment
are
associated
with
_______.
-
ANSthe
disease
triangle A
vegetable
grower
applies
herbicides
in
narrow
strips
usually
10
to
12
inches
wide.
What
is
this
type
of
application?
-
ANSband
According
to
the
USDA,
what
are
the
top
states
for
oat
production?
-
ANSNorth
Dakota,
Minnesota,
South
Dakota,
Wisconsin,
Texas
An
agricultural
company
hires
a
qualified
person
who
has
as
one
of
his
duties
the
responsibility
of
applying
pesticides
on
the
company's
property .
How
would
this
person
be
classified?
-
ANSCommercial
Not-for-Hire
Operator
An
agronomist
has
identified
evidence
of
insects
devouring
the
leaves
of
a
crop.
What
would
be
the
most
effective
means
of
control?
-
ANSa
stomach
insecticide
An
insect,
such
as
the
grasshopper ,
undergoes
incomplete
metamorphosis.
What
process
allows
the
insect
to
continually
grow
to
reach
a
mature
size?
-
ANSmolting
An
organization
must
have
________
person(s)
licensed
as
an
applicator
at
each
location.
-
ANSat
least
one
Annual
grasses
and
small-seeded
broadleaf
weeds
can
be
controlled
in
sunflower
crops
by
applying
the
herbicide
before
the
sunflower
is
seeded.
How
would
this
treatment
be
classified?
-
ANSpre-plant
Blowing
out
a
plugged
nozzle
or
eating
without
washing
contaminated
hands
can
result
in
________.
-
ANSoral
exposure
Breeding
wheat
to
rye
produces_________,
which
has
one
set
of
rye
chromosomes
and
three
sets
of
wheat
chromosomes.
-
ANStriticale
Corn
is
___________.
-
ANSgynoecious
Corn
is
___________.
-
ANSgynoecious
Corn
is
classified
as
a
___________
crop.
-
ANScereal
grain
Corn
requires
____________
most
other
crops.
-
ANSmore
nutrients
than
Corn
smut
is
an
obligate
parasite.
What
does
this
mean?
-
ANSIt
extracts
nutrients
from
living
plant
tissues
and
survive
apart
from
its
host