MICHIGAN MOSQUITO CONTROL 7F
CERTIFICATION EXAM QUESTIONS
AND ANSWERS
1. Which stage of the mosquito life cycle is considered non-feeding and motile?
A. Larva
B. Adult
C. Egg
D. Pupa
Answer: D
Conceptual Explanation: The pupa stage is a non-feeding stage where the mosquito
transforms into an adult. Unlike many other insects, mosquito pupae are active and can
swim to avoid predators.
2. Which mosquito genus is characterized by larvae that possess a short, blunt respiratory
siphon and are typically found in permanent water?
A. Coquillettidia
B. Psorophora
,C. Anopheles
D. Aedes
Answer: A
Conceptual Explanation: Coquillettidia larvae have specialized siphons to pierce the roots
or stems of aquatic plants to obtain oxygen, usually residing in permanent water bodies.
3. In Michigan, which disease is primarily transmitted by Culex pipiens and Culex restuans?
A. West Nile Virus
B. Malaria
C. Zika Virus
D. Lyme Disease
Answer: A
Conceptual Explanation: Culex pipiens and Culex restuans are the primary vectors of
West Nile Virus in the Midwestern United States, including Michigan.
4. What is the primary mode of action for Bacillus thuringiensis israelensis (Bti) against
mosquito larvae?
A. Disruption of the midgut epithelium after ingestion
B. Neurotoxicity leading to paralysis
C. Hormonal disruption preventing molting
, D. Suffocation by breaking the water surface tension
Answer: A
Conceptual Explanation: Bti produces crystalline proteins that, when ingested and
activated in the alkaline midgut of the larva, destroy the gut wall.
5. Under Michigan Act 451, Part 83, what is the requirement for commercial pesticide
applicators regarding record-keeping?
A. Records must be kept for 3 years.
B. Records must be kept for 1 year.
C. Records must be kept for 6 months.
D. Records must be kept for 5 years.
Answer: A
Conceptual Explanation: Michigan law requires commercial applicators to maintain
records of pesticide applications for at least three years.
6. Which of the following is an example of ‘source reduction’ in an Integrated Pest
Management (IPM) program?
A. Applying ULV space sprays
B. Draining or filling temporary pools of water
C. Releasing Gambusia affinis fish
D. Using a growth regulator like Methoprene
CERTIFICATION EXAM QUESTIONS
AND ANSWERS
1. Which stage of the mosquito life cycle is considered non-feeding and motile?
A. Larva
B. Adult
C. Egg
D. Pupa
Answer: D
Conceptual Explanation: The pupa stage is a non-feeding stage where the mosquito
transforms into an adult. Unlike many other insects, mosquito pupae are active and can
swim to avoid predators.
2. Which mosquito genus is characterized by larvae that possess a short, blunt respiratory
siphon and are typically found in permanent water?
A. Coquillettidia
B. Psorophora
,C. Anopheles
D. Aedes
Answer: A
Conceptual Explanation: Coquillettidia larvae have specialized siphons to pierce the roots
or stems of aquatic plants to obtain oxygen, usually residing in permanent water bodies.
3. In Michigan, which disease is primarily transmitted by Culex pipiens and Culex restuans?
A. West Nile Virus
B. Malaria
C. Zika Virus
D. Lyme Disease
Answer: A
Conceptual Explanation: Culex pipiens and Culex restuans are the primary vectors of
West Nile Virus in the Midwestern United States, including Michigan.
4. What is the primary mode of action for Bacillus thuringiensis israelensis (Bti) against
mosquito larvae?
A. Disruption of the midgut epithelium after ingestion
B. Neurotoxicity leading to paralysis
C. Hormonal disruption preventing molting
, D. Suffocation by breaking the water surface tension
Answer: A
Conceptual Explanation: Bti produces crystalline proteins that, when ingested and
activated in the alkaline midgut of the larva, destroy the gut wall.
5. Under Michigan Act 451, Part 83, what is the requirement for commercial pesticide
applicators regarding record-keeping?
A. Records must be kept for 3 years.
B. Records must be kept for 1 year.
C. Records must be kept for 6 months.
D. Records must be kept for 5 years.
Answer: A
Conceptual Explanation: Michigan law requires commercial applicators to maintain
records of pesticide applications for at least three years.
6. Which of the following is an example of ‘source reduction’ in an Integrated Pest
Management (IPM) program?
A. Applying ULV space sprays
B. Draining or filling temporary pools of water
C. Releasing Gambusia affinis fish
D. Using a growth regulator like Methoprene
