MINNESOTA PESTICIDE APPLICATOR
PRACTICE TEST(CATEGORY L MOSQUITO
CONTROL) 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH EXPERT
SOLUTIONS
1: MOSQUITO BIOLOGY & IDENTIFICATION (Questions 1-
25)
1. About how many species of mosquitoes are known to occur in Minnesota?
• A. 50
• B. 100
• C. 500
• D. 1,000
Rationale: Minnesota is home to approximately 50 species of mosquitoes . This is a key
fact for Category L applicators to know when identifying local mosquito populations.
2. How many instar stages does a mosquito go through?
• A. 1
• B. 2
• C. 3
• D. 4
Rationale: Mosquitoes go through 4 instar stages during their larval development
before pupating. Each instar is a distinct developmental stage where the larva grows and
molts .
3. The correct order of mosquito life cycle stages is:
• A. Pupa, larva, egg, adult
, • B. Egg, larva, pupa, adult
• C. Egg, instar, pupa, adult
• D. Instar, larva, adult, pupa
Rationale: The mosquito life cycle follows a complete metamorphosis: Egg → Larva →
Pupa → Adult. All mosquitoes require water for the egg, larval, and pupal stages .
4. Why do female mosquitoes take a blood meal?
• A. To produce eggs
• B. To feed/get nourishment
• C. To transmit disease
• D. To feed young
Rationale: Female mosquitoes require a blood meal to obtain the protein necessary
for egg development. Male mosquitoes do not take blood meals—they feed on plant
nectar .
5. Which mosquito species obtains oxygen through the roots of plants?
• A. Aedes vexans
• B. Aedes trivittatus
• C. Coquillettidia perturbans
• D. Culex tarsalis
Rationale: The mosquito species Coquillettidia perturbans obtains oxygen by
inserting its siphon into the roots of aquatic plants. This adaptation makes them harder
to control with larvicides because they are not at the water's surface like other species .
6. What type of sites do Culex mosquitoes prefer to lay eggs?
• A. Grassy areas
• B. Temporary or permanent pools of water
• C. Moist soil
• D. Dry soil areas that usually flood
Rationale: Culex mosquitoes prefer to lay eggs in temporary or permanent pools of
water that are high in organic matter. These include catch basins, storm drains, and
polluted water bodies .
7. What is the scientific name of the tree hole mosquito?
• A. Aedes albopictus
, • B. Aedes vexans
• C. Aedes triseriatus
• D. Culex tarsalis
Rationale: The tree hole mosquito is scientifically named Aedes triseriatus. This species
is the primary vector of LaCrosse Encephalitis in Minnesota .
8. Where do mosquitoes rest during the day?
• A. Breeding sites
• B. Structures
• C. Harborage
• D. None of the above
Rationale: Mosquitoes rest in harborage areas during the day—these include
vegetation, under bridges, in culverts, and other shaded, protected areas .
9. Which one of the following can be best described as a "structure" for a
mosquito habitat?
• A. A house
• B. A wetland
• C. A catch-basin
• D. A harborage
Rationale: For mosquito control purposes, a "structure" refers to man-made water-
holding features like catch-basins, storm drains, and other artificial containers that
provide breeding habitat .
10. How long can mosquito eggs last approximately?
• A. 5 years
• B. 10 weeks
• C. 1 year
• D. 6 months
Rationale: Some mosquito eggs, particularly those of floodwater species like Aedes
vexans, can remain viable for up to 5 years in a dried state, waiting for water to trigger
hatching .
11. Adult mosquitoes are attracted to:
• A. Blood
PRACTICE TEST(CATEGORY L MOSQUITO
CONTROL) 2026 QUESTIONS AND
ANSWERS | A+ GRADED | WITH EXPERT
SOLUTIONS
1: MOSQUITO BIOLOGY & IDENTIFICATION (Questions 1-
25)
1. About how many species of mosquitoes are known to occur in Minnesota?
• A. 50
• B. 100
• C. 500
• D. 1,000
Rationale: Minnesota is home to approximately 50 species of mosquitoes . This is a key
fact for Category L applicators to know when identifying local mosquito populations.
2. How many instar stages does a mosquito go through?
• A. 1
• B. 2
• C. 3
• D. 4
Rationale: Mosquitoes go through 4 instar stages during their larval development
before pupating. Each instar is a distinct developmental stage where the larva grows and
molts .
3. The correct order of mosquito life cycle stages is:
• A. Pupa, larva, egg, adult
, • B. Egg, larva, pupa, adult
• C. Egg, instar, pupa, adult
• D. Instar, larva, adult, pupa
Rationale: The mosquito life cycle follows a complete metamorphosis: Egg → Larva →
Pupa → Adult. All mosquitoes require water for the egg, larval, and pupal stages .
4. Why do female mosquitoes take a blood meal?
• A. To produce eggs
• B. To feed/get nourishment
• C. To transmit disease
• D. To feed young
Rationale: Female mosquitoes require a blood meal to obtain the protein necessary
for egg development. Male mosquitoes do not take blood meals—they feed on plant
nectar .
5. Which mosquito species obtains oxygen through the roots of plants?
• A. Aedes vexans
• B. Aedes trivittatus
• C. Coquillettidia perturbans
• D. Culex tarsalis
Rationale: The mosquito species Coquillettidia perturbans obtains oxygen by
inserting its siphon into the roots of aquatic plants. This adaptation makes them harder
to control with larvicides because they are not at the water's surface like other species .
6. What type of sites do Culex mosquitoes prefer to lay eggs?
• A. Grassy areas
• B. Temporary or permanent pools of water
• C. Moist soil
• D. Dry soil areas that usually flood
Rationale: Culex mosquitoes prefer to lay eggs in temporary or permanent pools of
water that are high in organic matter. These include catch basins, storm drains, and
polluted water bodies .
7. What is the scientific name of the tree hole mosquito?
• A. Aedes albopictus
, • B. Aedes vexans
• C. Aedes triseriatus
• D. Culex tarsalis
Rationale: The tree hole mosquito is scientifically named Aedes triseriatus. This species
is the primary vector of LaCrosse Encephalitis in Minnesota .
8. Where do mosquitoes rest during the day?
• A. Breeding sites
• B. Structures
• C. Harborage
• D. None of the above
Rationale: Mosquitoes rest in harborage areas during the day—these include
vegetation, under bridges, in culverts, and other shaded, protected areas .
9. Which one of the following can be best described as a "structure" for a
mosquito habitat?
• A. A house
• B. A wetland
• C. A catch-basin
• D. A harborage
Rationale: For mosquito control purposes, a "structure" refers to man-made water-
holding features like catch-basins, storm drains, and other artificial containers that
provide breeding habitat .
10. How long can mosquito eggs last approximately?
• A. 5 years
• B. 10 weeks
• C. 1 year
• D. 6 months
Rationale: Some mosquito eggs, particularly those of floodwater species like Aedes
vexans, can remain viable for up to 5 years in a dried state, waiting for water to trigger
hatching .
11. Adult mosquitoes are attracted to:
• A. Blood
