MICHIGAN MOSQUITO CONTROL 7F
FINAL EXAM STUDY GUIDE
QUESTIONS AND ANSWERS
1. Which biological stage of the mosquito is known as the ‘wriggler’?
A. Egg
B. Larva
C. Pupa
D. Adult
Answer: B
Conceptual Explanation: The larval stage is commonly called the ‘wriggler’ due to its
characteristic swimming motion. The pupa is known as a ‘tumbler’.
2. In which mosquito genus do the larvae lack a respiratory siphon and lie parallel to the
water surface?
A. Culex
B. Anopheles
C. Aedes
,D. Culiseta
Answer: B
Conceptual Explanation: Anopheles larvae lack a siphon and use palmate hairs to hang
horizontally at the water surface to breathe through spiracular plates.
3. Which mosquito species is the primary vector of Eastern Equine Encephalitis (EEE) in
Michigan’s bird-to-bird cycle?
A. Aedes vexans
B. Culiseta melanura
C. Culex pipiens
D. Anopheles quadrimaculatus
Answer: B
Conceptual Explanation: Culiseta melanura is a bird-feeding specialist that maintains the
EEE virus in avian populations in swampy habitats.
4. What is the mode of action for the insect growth regulator (IGR) Methoprene?
A. It inhibits chitin synthesis.
B. It causes stomach poisoning through crystalline proteins.
C. It acts as a neurotoxin by blocking sodium channels.
D. It mimics juvenile hormone to prevent adult emergence.
, Answer: D
Conceptual Explanation: Methoprene is a juvenile hormone mimic that keeps the
mosquito in the larval/pupal stage, preventing it from successfully molting into a functional
adult.
5. Under Michigan Act 451, Part 83, how long must commercial pesticide applicators keep
records of their applications?
A. 1 year
B. 3 years
C. 5 years
D. Permanently
Answer: B
Conceptual Explanation: According to Michigan’s Pesticide Control Act (Part 83),
commercial applicators are required to maintain application records for at least three
years.
6. Which mosquito is known as the ‘Tree-Hole Mosquito’ and is the vector for La Crosse
Encephalitis?
A. Culex restuans
B. Aedes aegypti
C. Aedes triseriatus
FINAL EXAM STUDY GUIDE
QUESTIONS AND ANSWERS
1. Which biological stage of the mosquito is known as the ‘wriggler’?
A. Egg
B. Larva
C. Pupa
D. Adult
Answer: B
Conceptual Explanation: The larval stage is commonly called the ‘wriggler’ due to its
characteristic swimming motion. The pupa is known as a ‘tumbler’.
2. In which mosquito genus do the larvae lack a respiratory siphon and lie parallel to the
water surface?
A. Culex
B. Anopheles
C. Aedes
,D. Culiseta
Answer: B
Conceptual Explanation: Anopheles larvae lack a siphon and use palmate hairs to hang
horizontally at the water surface to breathe through spiracular plates.
3. Which mosquito species is the primary vector of Eastern Equine Encephalitis (EEE) in
Michigan’s bird-to-bird cycle?
A. Aedes vexans
B. Culiseta melanura
C. Culex pipiens
D. Anopheles quadrimaculatus
Answer: B
Conceptual Explanation: Culiseta melanura is a bird-feeding specialist that maintains the
EEE virus in avian populations in swampy habitats.
4. What is the mode of action for the insect growth regulator (IGR) Methoprene?
A. It inhibits chitin synthesis.
B. It causes stomach poisoning through crystalline proteins.
C. It acts as a neurotoxin by blocking sodium channels.
D. It mimics juvenile hormone to prevent adult emergence.
, Answer: D
Conceptual Explanation: Methoprene is a juvenile hormone mimic that keeps the
mosquito in the larval/pupal stage, preventing it from successfully molting into a functional
adult.
5. Under Michigan Act 451, Part 83, how long must commercial pesticide applicators keep
records of their applications?
A. 1 year
B. 3 years
C. 5 years
D. Permanently
Answer: B
Conceptual Explanation: According to Michigan’s Pesticide Control Act (Part 83),
commercial applicators are required to maintain application records for at least three
years.
6. Which mosquito is known as the ‘Tree-Hole Mosquito’ and is the vector for La Crosse
Encephalitis?
A. Culex restuans
B. Aedes aegypti
C. Aedes triseriatus
