1.
In south Florida's sandy soil, the
most serious nematode pest of turf is:
a.
lance
b.
stubby root
c.
ring
d.
sting
e.
rootknot
2.
A
biological toxin, used to kill lepidoteran larvae (i.e., caterpillars) is
used in Thuricide and Dipel; it is derived from:
a.
Bacillus thuringensis
b.
Bacillus subtilis
c.
pentachloronitrobenzene
d.
Steinernema carpocapsae
e.
Bacillus popillae
3.
The herbicide Drive 75DF is labeled for control or suppression
of torpedograss in bermudagrass turf. It is to be applied at up to 1 pound
per acre. How many pounds of Drive 75DF should be added to a 100-gallon spray
rig set for 40 gallons per acre?
a.
1
b.
2.5
c.
5
d.
10
e.
25
4.
Which
statement is true about rotary heads vs. spray heads?
a.
rotary heads cost more per unit area
b.
spray heads are not adjustable, while
rotary heads are adjustable
c.
rotary heads cost more per head
d.
rotary heads require more heads per
unit area
e.
spray heads require more pressure
to operate than rotary heads
5.
Which pest is a piercing sucking insect?
a.
the fall armyworm
b.
the white grub
c.
the tropical sod webworm
d.
the southern chinch
e.
the tawny mole cricket
6.
The most useful evidence in
diagnosing what caused a turf problem:
a.
the history
b.
the environment
c.
the symptoms
d.
the signs
e.
the species and variety of grass
7.
This pest damages the turf by tunneling:
a.
Blissus insularis
b.
Phyllophaga spp
c.
Solenopsis invicta
d.
Herpetogramma phaeopteralis
e.
Scapteriscus vicinus
8.
Which group of turf arthropods has
the longest (1 to 4 year) life cycle?
a.
chinch bugs
b.
fire ants
c.
grubs (beetles)
d.
mole crickets
e.
mites
9.
This
family of herbicides was developed during World War II, for chemical warfare
on enemy crops, and the family is very effective for postemergence broadleaf
weed control, but are generally not used in St. Augustinegrass:
a.
triazines including atrazine
b.
demethylation inhibitors (e.g., triazoles)
such as Banner and Bayleton
c.
phenoxies such as 2,4-D
d.
BT group such as Dipel and Thuricide
e.
dinitroanalines such as Surflan and
Pendimethalin
10.
What grass genus contains both a perennial
species widely used for turf, an annual species used for overseeding greens
in Florida, as well as an annual species
that is both a serious weed and managed as turf on greens in Michigan?
a.
Cyperus
b.
Lolium
c.
Stenotaphrum
d.
Poa
e.
Scapteriscus
11. A perennial broadleaf weed of turf,
particularly in home lawns:
a.
Panicum repens
b.
Solenopsis invicta
c.
Eleusine
indica
d.
Hydrocotyle
umbellata
e.
Rhizoctonia solani
12. How many 50-pound bags of urea 21-0-0
must be applied to 1 acre of turf at the rate of 1 pounds N per thousand square
feet?
a.
50
b.
45
c.
20
d.
4.5
e.
2
13. Which factor is the most important
component in turfgrass evapotranspiration?
a.
temperature
b.
relative humidity
c.
radiant energy
d.
the root zone
e.
wind
14. The causal agent of brownpatch and
other turfgrass diseases:
a.
Pythium spp.
b.
Blissus insularis
c.
Rhizoctonia solani
d.
Urochloa subquadripara
e.
Bacillus thuringensis
15.
What is a name for the excreta of
an insect?
a.
frass
b.
spore
c.
hypha
d.
mycelium
e.
symbiont
16.
The fertilizer ammonium sulfate (21-0-0) is to be applied
at 1 pound N per thousand square feet. How many 50-pound bags are needed
to treat a turf area of one acre?
a.
1
b.
2
c.
4
d.
8
e.
16
The
following question is worth 20 points.
17.
In the lecture the Disease Triangle was discussed. What do
the three points of the Disease Triangle represent? How can the same concept
be applied to another group of organisms in turf, such as weeds or insect
pests? (Choose the pest, and match the Disease Triangle concepts to the pest,
showing a parallel to the same idea in diseases. Possibly construct a table
of comparison.)
The
following questions are worth 10 points each.
18.
Draw the soil triangle that was given to you in a handout (may
be crudely drawn) and sketch in the approximate regions of some common soil
types. Explain through words and reference to the soil triangle how it is
true that, “you can’t amend a heavy soil by adding sand.”
19.
List the three basic practices in turfgrass management discussed
in the lectures and describe by example how each can affect pest activity.
In the textbook the three practices were called “cultural controls.”
20.
Why do ball fields (or other turf facilities) sometimes get
constructed wrong? Having visited the soccer fields under construction at
Plantation Central Park,
and having seen the photos and discussed the installation with architect David
Sacks, what kinds of things would you require of the contractor during construction,
to make sure the job is done right.
21. “Organic” is a fertilizer
that is commonly sold at the retail outlets. Your neighbor asks, why don’t
you use organic fertilizer instead of this dangerous chemical stuff? What
should you say to help educate your neighbor (remembering that he is going
to continue to be your neighbor).
Student Name: