Tennessee Livestock Pest Control Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A livestock producer is experiencing significant irritation and weight
loss in cattle due to biting flies; which of the following pests is most
commonly associated with persistent blood-feeding on cattle and
reduced weight gain?
A. House flies
B. Stable flies
C. Horse flies
D. Face flies
B. Stable flies
Stable flies are blood-feeding pests that bite cattle repeatedly,
causing stress, reduced feeding, and measurable weight loss, making
them one of the most economically damaging livestock pests.
2. Which pesticide formulation is most appropriate for direct application
onto livestock for control of external parasites such as lice and mites?
A. Wettable powders
B. Granules
C. Pour-on solutions
D. Dust concentrates
C. Pour-on solutions
Pour-on formulations are specifically designed for safe and effective
, topical application on animals, allowing systemic or contact control
of ectoparasites.
3. What is the primary mode of transmission of anaplasmosis in cattle by
insect vectors?
A. Mechanical transmission by biting flies
B. Biological transmission by ticks only
C. Airborne transmission
D. Waterborne transmission
A. Mechanical transmission by biting flies
Anaplasmosis is commonly spread mechanically when biting flies
transfer infected blood between animals during feeding.
4. Which pest is most associated with irritation around the eyes of cattle
and transmission of pinkeye?
A. Stable fly
B. Horn fly
C. Face fly
D. Horse fly
C. Face fly
Face flies feed on secretions around the eyes and are major vectors
of infectious bovine keratoconjunctivitis (pinkeye).
5. In integrated pest management (IPM) for livestock, what is the
primary purpose of rotating insecticide classes?
A. To reduce cost
B. To increase toxicity
C. To delay resistance development
D. To improve odor
C. To delay resistance development
Rotating insecticide classes helps prevent pests from developing
resistance by varying modes of action over time.
6. Which parasite spends its entire life cycle on the host animal?
A. Mosquito
B. Louse
C. Fly
D. Tick
B. Louse
, Lice are obligate parasites that remain on the host throughout their
life cycle, unlike flies or mosquitoes.
7. What is the recommended threshold for horn fly control in cattle
before treatment is economically justified?
A. 50 flies per animal
B. 100 flies per animal
C. 200 flies per animal
D. 500 flies per animal
C. 200 flies per animal
Economic thresholds indicate treatment when approximately 200
horn flies per animal are present due to production losses.
8. Which method is most effective for reducing fly breeding in livestock
facilities?
A. Increasing feed
B. Removing manure regularly
C. Increasing water supply
D. Adding shade
B. Removing manure regularly
Fly larvae develop in manure, so regular removal disrupts their life
cycle and reduces populations significantly.
9. Which pesticide signal word indicates the highest level of toxicity?
A. Caution
B. Warning
C. Danger
D. Notice
C. Danger
“Danger” indicates highly toxic pesticides with severe risks to
humans and animals.
10. What is the primary target pest of insecticide-impregnated ear
tags in cattle?
A. Lice
B. Ticks
C. Horn flies
D. Mites
C. Horn flies
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A livestock producer is experiencing significant irritation and weight
loss in cattle due to biting flies; which of the following pests is most
commonly associated with persistent blood-feeding on cattle and
reduced weight gain?
A. House flies
B. Stable flies
C. Horse flies
D. Face flies
B. Stable flies
Stable flies are blood-feeding pests that bite cattle repeatedly,
causing stress, reduced feeding, and measurable weight loss, making
them one of the most economically damaging livestock pests.
2. Which pesticide formulation is most appropriate for direct application
onto livestock for control of external parasites such as lice and mites?
A. Wettable powders
B. Granules
C. Pour-on solutions
D. Dust concentrates
C. Pour-on solutions
Pour-on formulations are specifically designed for safe and effective
, topical application on animals, allowing systemic or contact control
of ectoparasites.
3. What is the primary mode of transmission of anaplasmosis in cattle by
insect vectors?
A. Mechanical transmission by biting flies
B. Biological transmission by ticks only
C. Airborne transmission
D. Waterborne transmission
A. Mechanical transmission by biting flies
Anaplasmosis is commonly spread mechanically when biting flies
transfer infected blood between animals during feeding.
4. Which pest is most associated with irritation around the eyes of cattle
and transmission of pinkeye?
A. Stable fly
B. Horn fly
C. Face fly
D. Horse fly
C. Face fly
Face flies feed on secretions around the eyes and are major vectors
of infectious bovine keratoconjunctivitis (pinkeye).
5. In integrated pest management (IPM) for livestock, what is the
primary purpose of rotating insecticide classes?
A. To reduce cost
B. To increase toxicity
C. To delay resistance development
D. To improve odor
C. To delay resistance development
Rotating insecticide classes helps prevent pests from developing
resistance by varying modes of action over time.
6. Which parasite spends its entire life cycle on the host animal?
A. Mosquito
B. Louse
C. Fly
D. Tick
B. Louse
, Lice are obligate parasites that remain on the host throughout their
life cycle, unlike flies or mosquitoes.
7. What is the recommended threshold for horn fly control in cattle
before treatment is economically justified?
A. 50 flies per animal
B. 100 flies per animal
C. 200 flies per animal
D. 500 flies per animal
C. 200 flies per animal
Economic thresholds indicate treatment when approximately 200
horn flies per animal are present due to production losses.
8. Which method is most effective for reducing fly breeding in livestock
facilities?
A. Increasing feed
B. Removing manure regularly
C. Increasing water supply
D. Adding shade
B. Removing manure regularly
Fly larvae develop in manure, so regular removal disrupts their life
cycle and reduces populations significantly.
9. Which pesticide signal word indicates the highest level of toxicity?
A. Caution
B. Warning
C. Danger
D. Notice
C. Danger
“Danger” indicates highly toxic pesticides with severe risks to
humans and animals.
10. What is the primary target pest of insecticide-impregnated ear
tags in cattle?
A. Lice
B. Ticks
C. Horn flies
D. Mites
C. Horn flies
