Lowa Pesticide | Actual Test Questions and
Verified Answers
Question 1
Which of the following is extremely difficult to control, regardless of the method
used?
A. Leafy spurge
B. Red sorrel
C. Wild mustard
Correct Answer
Leafy spurge
Question 2
Which of the following is NOT a group 4 synthetic auxin?
A. Diuron
B. Picloram
C. Triclopyr
Correct Answer
Diuron
Question 3
_____ is the phenomenon whereby a herbicide applied to a target tree moves to
nontarget trees, such as through root grafts
A. Transference
B. Frilling
C. Flashback
Correct Answer
Flashback
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,Question 4
Glyphosate (e.g. RoundUp) is which type of herbicide?
A. ALS-Inhibitor
B. Microtubule assembly inhibitor
C. Growth regulator
D. EPSPS inhibitor
Correct Answer
EPSPS inhibitor
Question 5
Which type of weed is best controlled in early bloom?
A. Annual
B. Biennial
C. Perennial
D. Herbaceous
Correct Answer
Perennial
Question 6
A major disadvantage of the phenoxy-herbicides is:
A. They are non-selective herbicides
B. They can damage desirable plants at very low rates, making them susceptible to
drift damage
C. They are highly toxic to wildlife
D. They persist in the soil for several years
Correct Answer
They can damage desirable plants at very low rates, making them susceptible to
drift damage
Page 2 of 75
,Question 7
Perennial thistle that displays a pink, purple, lavender, or white bloom late spring-
early summer.
A. Bull
B. Canada
C. Musk
D. Tall
Correct Answer
Canada
Question 8
True or False: One disadvantage of spray booms mounted on tractors may be reduced
efficiency and productivity
Correct Answer
True
Question 9
Your company/agency is using a new herbicide for treating persistent weeds. The
signal word is DANGER. What measure should you take to minimize potential harm
for yourself and co-workers?
A. Assume the new herbicide requires the same precautions as the old herbicide
B. Be familiar with how it kills the target pest
C. Be familiar with the child hazard training
D. Be familiar with the poisoning symptoms
Correct Answer
Be familiar with the poisoning symptoms
Question 10
Pump pressure, nozzle size, and ground speed should be maintained once equipment
is __________.
A. Calibrated
B. Filled with herbicide
C. Emptied
Correct Answer
Calibrated
Page 3 of 75
, Question 11
Which of the following are annual weeds?
A. Pigweed
B. Common mullen
C. Field bindweed
D. Musk thistle
Correct Answer
Pigweed
Question 12
True or False: A nonselective herbicide is a pesticide that controls all plants. It is used
where no plant growth is wanted.
Correct Answer
True
Question 13
Which herbicide family causes plant death through the formation of highly reactive
compounds that disrupt cellular integrity?
A. Fatty Acid Synthesis
B. Photosystem I Electron Diverters
C. Carotene Synthesis Inhibitors
D. Cellulose Biosynthesis Inhibitors
Correct Answer
Carotene Synthesis Inhibitors
Question 14
Which nuisance weed causes blisters, rashes, and itching for humans, but can be
controlled by treatments of glyphosate or triclopyr?
A. Poison hemlock
B. Poison ivy
C. Wild mustard
Correct Answer
Poison ivy
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