Page 1 of 34
20 May 2026
Minnesota Pesticide Applicator Practice Test(Category L
Mosquito Control) PREP EXAM 170 QUESTIONS WITH
COMPLETE SOLUTION) (MULTIPLE CHOICES) (A+ GRADED 100%
VERIFIED) LATEST VERSION 2026/2027
The brand name pesticide PUNT 57-OS can be applied to vegetation to act as a long-lasting barrier
to adult mosquitoes. Its active ingredient is?
a. dursban
b. malathion
c. resmethrin
d. permethrin - CORRECT ANSWER-d. permethrin
When using a hydraulic field sprayer for spot control of adult mosquitoes, it is important to ensure
that?
a. adequate time is allowed for the spray to dry so humans do not contact wet spray
b. that the applicator read and follow label directions and recommendations
c. there is adequate product available because this application method uses more insecticide than
ULV machines
d. all of the above - CORRECT ANSWER-d. all of the above
MSDS stands for?
a. MN safety description standard
b. Mineral standards development screening
c. MN standards department
d. Material safety data sheet - CORRECT ANSWER-d. Material Safety Data Sheet
ULV aerosols are most effective during evening and before sunrise because?
a. The larvae are concentrated on the surface of standing water at those times
b. those are times when female mosquitoes are most likely to be laying eggs
c. the adult mosquitoes are most active at those times
d. droplet sizes of 1 to 30 microns are easier to calibrate at those times - CORRECT ANSWER-c. the
adult mosquitoes are most active at those times
, Page 2 of 34
20 May 2026
The smallest droplet size is produced by this method
a. thermal fogs
b. most sprayers
c. hand sprayers
d. ULV foggers - CORRECT ANSWER-d. ULV foggers
This application method is most useful for spot treatment of adults and/or larvae
a. cold fog generators
b. hot fog generators
c. thermal generators
d. hydraulic field sprays - CORRECT ANSWER-d. hydraulic field sprays
Droplet size is generally measured in microns. A micron is one one-thousandth of a millimeter.
Which of the following spray types produces the largest droplet size?
a. ULV cold aerosols
b. thermal fogs
c. mist sprayers
d. cold foggers - CORRECT ANSWER-c. mist sprayers
the droplet size is usually determined by?
a. diameter of the applicator hose
b. size of the nozzle opening
c. temp and pressure of the formulation tank
d. temp and barometric pressure while spraying - CORRECT ANSWER-b. size of the nozzle opening
Of the following, which is not an organophosphate?
a. malathion
b. python ULV
c. permethrin
d. chlorpyrifos - CORRECT ANSWER-c. permethrin
, Page 3 of 34
20 May 2026
The active ingredient in Python ULV is?
a. resmethrin
b. malathion
c. chlorpyrifos
d. permethrin - CORRECT ANSWER-b. malathion
What is the scientific name of the tree hole mosquito?
a. Aedes albopictus
b. Aedes vexan
c. Aedes triseriatus
d. Culex tarsalis - CORRECT ANSWER-c. Aedes triseriatus
What is the common name for black flies?
a. Biting gnats
b. horse flies
c. larva flies
d. none of the above - CORRECT ANSWER-a. Biting gnats
Permethrin is a synthesized extract of a pyrethroid derived from?
a. Resmethrin
b. Chrysanthemum flower
c. Piperonyl butoxide
Bti - CORRECT ANSWER-b. Chrysanthemum flower
How much rain does it take to produce a brood of mosquitoes?
a. .01 - .25 inches
b. .25 - .50 inches
c. .50 - .99 inches
d. one inch or more - CORRECT ANSWER-d. one inch or more
Approximately how many mosquito species are there in MN?
, Page 4 of 34
20 May 2026
a. 1
b. 10
c. 50
d. 500 - CORRECT ANSWER-c. 50
How long can mosquito eggs last approximately?
a. 5 years
b. 10 weeks
c. 1 year
d. 6 months - CORRECT ANSWER-a. 5 years
What is the most effective way to control mosquitoes?
a. Larvicide
b. Resmethrin
c. Adulticide
d. None of the above - CORRECT ANSWER-a. Larvicide
How is LaCrosse Encephalitis passed from one mosquito generation to the next?
a. blood meals
b. eggs
c. water
d. a mosquito bite - CORRECT ANSWER-b. eggs
How does methoprene work to control mosquitoes?
a. acts like a virus to kill adult mosquitoes
b. prevents them from being able to fly
c. acts as a synthetic hormone to confuse the mosquito biologically
d. gives larvae mosquitoes an infection which eventually kills them - CORRECT ANSWER-c. acts as a
synthetic hormone to confuse the mosquito biologically
20 May 2026
Minnesota Pesticide Applicator Practice Test(Category L
Mosquito Control) PREP EXAM 170 QUESTIONS WITH
COMPLETE SOLUTION) (MULTIPLE CHOICES) (A+ GRADED 100%
VERIFIED) LATEST VERSION 2026/2027
The brand name pesticide PUNT 57-OS can be applied to vegetation to act as a long-lasting barrier
to adult mosquitoes. Its active ingredient is?
a. dursban
b. malathion
c. resmethrin
d. permethrin - CORRECT ANSWER-d. permethrin
When using a hydraulic field sprayer for spot control of adult mosquitoes, it is important to ensure
that?
a. adequate time is allowed for the spray to dry so humans do not contact wet spray
b. that the applicator read and follow label directions and recommendations
c. there is adequate product available because this application method uses more insecticide than
ULV machines
d. all of the above - CORRECT ANSWER-d. all of the above
MSDS stands for?
a. MN safety description standard
b. Mineral standards development screening
c. MN standards department
d. Material safety data sheet - CORRECT ANSWER-d. Material Safety Data Sheet
ULV aerosols are most effective during evening and before sunrise because?
a. The larvae are concentrated on the surface of standing water at those times
b. those are times when female mosquitoes are most likely to be laying eggs
c. the adult mosquitoes are most active at those times
d. droplet sizes of 1 to 30 microns are easier to calibrate at those times - CORRECT ANSWER-c. the
adult mosquitoes are most active at those times
, Page 2 of 34
20 May 2026
The smallest droplet size is produced by this method
a. thermal fogs
b. most sprayers
c. hand sprayers
d. ULV foggers - CORRECT ANSWER-d. ULV foggers
This application method is most useful for spot treatment of adults and/or larvae
a. cold fog generators
b. hot fog generators
c. thermal generators
d. hydraulic field sprays - CORRECT ANSWER-d. hydraulic field sprays
Droplet size is generally measured in microns. A micron is one one-thousandth of a millimeter.
Which of the following spray types produces the largest droplet size?
a. ULV cold aerosols
b. thermal fogs
c. mist sprayers
d. cold foggers - CORRECT ANSWER-c. mist sprayers
the droplet size is usually determined by?
a. diameter of the applicator hose
b. size of the nozzle opening
c. temp and pressure of the formulation tank
d. temp and barometric pressure while spraying - CORRECT ANSWER-b. size of the nozzle opening
Of the following, which is not an organophosphate?
a. malathion
b. python ULV
c. permethrin
d. chlorpyrifos - CORRECT ANSWER-c. permethrin
, Page 3 of 34
20 May 2026
The active ingredient in Python ULV is?
a. resmethrin
b. malathion
c. chlorpyrifos
d. permethrin - CORRECT ANSWER-b. malathion
What is the scientific name of the tree hole mosquito?
a. Aedes albopictus
b. Aedes vexan
c. Aedes triseriatus
d. Culex tarsalis - CORRECT ANSWER-c. Aedes triseriatus
What is the common name for black flies?
a. Biting gnats
b. horse flies
c. larva flies
d. none of the above - CORRECT ANSWER-a. Biting gnats
Permethrin is a synthesized extract of a pyrethroid derived from?
a. Resmethrin
b. Chrysanthemum flower
c. Piperonyl butoxide
Bti - CORRECT ANSWER-b. Chrysanthemum flower
How much rain does it take to produce a brood of mosquitoes?
a. .01 - .25 inches
b. .25 - .50 inches
c. .50 - .99 inches
d. one inch or more - CORRECT ANSWER-d. one inch or more
Approximately how many mosquito species are there in MN?
, Page 4 of 34
20 May 2026
a. 1
b. 10
c. 50
d. 500 - CORRECT ANSWER-c. 50
How long can mosquito eggs last approximately?
a. 5 years
b. 10 weeks
c. 1 year
d. 6 months - CORRECT ANSWER-a. 5 years
What is the most effective way to control mosquitoes?
a. Larvicide
b. Resmethrin
c. Adulticide
d. None of the above - CORRECT ANSWER-a. Larvicide
How is LaCrosse Encephalitis passed from one mosquito generation to the next?
a. blood meals
b. eggs
c. water
d. a mosquito bite - CORRECT ANSWER-b. eggs
How does methoprene work to control mosquitoes?
a. acts like a virus to kill adult mosquitoes
b. prevents them from being able to fly
c. acts as a synthetic hormone to confuse the mosquito biologically
d. gives larvae mosquitoes an infection which eventually kills them - CORRECT ANSWER-c. acts as a
synthetic hormone to confuse the mosquito biologically
