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Livestock Entomology Exam 2 Review

Terms in this set (30)

Which of the following is a major aspect for estimating pest population
All of the above:

- when to sample
- insect stage to sample
- sample location
Viruses, parasites, toxins, and radiation are examples of which component of the Epidemiological triad
agents
Nuisance actions against animal production facilities that include flies as the main complaint can fall under which of the following?
private and public
Which of the following is not a characterization of a grazing type system in terms of pest management
management is intensive
What is not an objective of epidemiology
To treat diseases in animals and humans
Which of the following is not a factor that influences the rate of insecticide resistance
Label directions
Viruses, bacteria, parasites and prions are all examples of a _____ agent
biological
Which of the following is not an example of a pest in which direct enumeration is utilized for
house flies
What is not a requirement for vector competence
The vector is present
Which of the following is an example of an off host sampling method
traps
What type of vertical transmission involves the passage of the pathogen through sequential life stages of parasitic development
Transstadial
What is not a type of vaccine used in livestock production
Adaptive
______ parasites are totally dependent upon their host to provide their requirements for life
Obligate
Nuisance complaints are restricted under state statutes known as "Right to Farm" laws. Which of the following situations can allow a person to raise a legal case against an animal production facility?
The animal operation has expanded or changes the size of its operation
_______ is a disease or infection, which is naturally transmissible directly or indirectly between animals and humans
Zoonosis
______ disease transmission cycle can be completed with only one vertebrate reservoir (rabies)
Orthozoonoses
______ diseases whose maintenance cycle requires both vertebrates and invertebrates to complete their transmission cycle (arboviruses: ticks and mosquitoes)
Metazoonoses
Brushes, needles, clothing and bedding are all sources of what type of transmission
Fomite
What does IPM stand for?
Integrated Pest Management
______ the number of insects that would cause damage equal to cost of dealing with those numbers, I.e. break even level
Economic injury level
______ is the number of insects that calls for corrective action
Economic threshold
What are the four main control strategies of an IPM program?
1. Cultural
2. Physical
3. Biological
4. Chemical
Which one of these are resistance mechanisms
All of the above:

Target site resistance
Metabolic resistance
Penetration resistance
Behavioral resistance
Match each treatment method to the corresponding information
Spray Concentrates: Apply for complete coverage, short lived residual effect

Sprays and Wipes: Ready to use form, misted of applied with some sort of wipe

Pour-on/Spot-on: Most ready to use, direct application along back

Ear Tags Control: release application, effectiveness decreases over time

Dusts: Ready to use, low concentration mixed with diluent, should not be mixed with water

Feed Through: Product is ingested with feed or mineral

Self Treatment: Back rubber or dustbag
Identify the EIL and ET from the following graph
1) EIL
2) ET
Label each insect class
Organochlorines: GABA
Pyrethroids: Na
Organophosphates: AChE
Milbemycins: Cl
Carbamates: AChE
Avermectins: Cl
Calculate each answer with the correct unit and give the type of (incidence/ point prevalence/ period prevalence) rate associated
1. Talley confirmed 75 cattle with lice during the first week of March. He wants to know what the rate was per 50 cattle, if there were 300 head of cattle total: 12.5 cattle per 50
head, this is a period prevalence rate.

2. Josey recorded 120 new cases of mange in cats during the last Operation Catnip. She wants to know the rate per 20 cats was if there were 900 brought in: 2.68 per 20 cats, this is a incidence rate.

3. At 1pm on Friday, there were 90 confirmed cases of bluetongue at OADDL. With 1000 total deer samples in the lab at that time, what was the rate per 100 deer? 9 cases per 1000
samples, this is a point prevalence rate.
Which of the following is not considered a type of vertical transmission
Biological transmission
Given the following diagram, what does the triangle represent in Vector-borne diseases
Natural nidality
Tick vaccines have been developed that target the tick's ability to attach to a host and interfere with blood digestion which have been proven effective in one-host ticks
True
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