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Question 1
Using barriers such as screens, fences, or cloth to prevent pests from getting into an area is an
example of which type of control?
A) Biological
B) Mechanical
C) Genetic
D) Cultural
E) Chemical
Correct Answer: B) Mechanical
Rationale: Mechanical control involves the use of physical devices or barriers to keep pests
out of an area or to trap/kill them. This includes screens, nets, and traps, distinct from
physical controls like temperature manipulation or cultural controls like sanitation.
Question 2
Making use of plant varieties that are naturally resistant to insect feeding or disease is an
example of which type of pest management method?
A) Biological
B) Mechanical
C) Genetic
D) Physical
E) Regulatory
Correct Answer: C) Genetic
Rationale: Genetic control involves the use of plants or animals that have been bred or
engineered to be resistant to specific pests. This reduces the need for chemical intervention
by utilizing the host's natural defenses.
Question 3
Which statement about biological control methods is TRUE?
A) Modifying the environment to enhance natural enemies is recommended.
B) Biological control involves importing exotic pests to kill native plants.
C) It relies exclusively on the use of broad-spectrum insecticides.
D) It is the fastest method to completely eradicate a pest population.
E) It is only effective in indoor greenhouse settings.
Correct Answer: A) Modifying the environment to enhance natural enemies is recommended
in biological control.
Rationale: Biological control is the use of natural enemies (predators, parasites, pathogens)
to control pests. Encouraging these "beneficials" by providing habitat or reducing chemical
use is a core strategy. It aims for suppression, not immediate eradication.
Question 4
Sealing cracks, crevices, and small openings in buildings to exclude pests is an example of which
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type of management?
A) Physical
B) Genetic
C) Biological
D) Regulatory
E) Chemical
Correct Answer: A) Physical
Rationale: Physical control involves altering the physical environment to make it
inhospitable to pests. Sealing entry points is a physical barrier that prevents access, often
grouped closely with mechanical controls in many texts.
Question 5
Which statement about cultural control practices is TRUE?
A) They use synthesized chemicals to alter pest DNA.
B) They reduce pest establishment, reproduction, and survival by altering the environment.
C) They involve the release of parasites found in foreign countries.
D) They are the most expensive form of pest control.
E) They are only used in large-scale industrial farming.
Correct Answer: B) They reduce pest establishment, reproduction, and survival.
Rationale: Cultural controls are practices that reduce pest populations by disrupting their
environment. Examples include mowing, irrigation management, crop rotation, and
sanitation (removing food sources).
Question 6
Monitoring pests at airports and ocean ports to prevent the entry of invasive species is an
example of which type of pest management?
A) Regulatory
B) Genetic
C) Biological
D) Cultural
E) Mechanical
Correct Answer: A) Regulatory
Rationale: Regulatory control involves government-mandated efforts to stop the spread of
pests through inspections, quarantines, and destruction of infested materials at borders
and ports.
Question 7
Which statement about Integrated Pest Management (IPM) strategies is TRUE?
A) The primary goal is the total eradication of all insect life.
B) IPM relies solely on the cheapest available chemical pesticides.
C) The goal is to prevent pests from reaching damaging levels using a combination of tactics.
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D) Non-chemical methods are considered ineffective and should be ignored.
E) IPM programs do not allow the use of any synthetic chemicals.
Correct Answer: C) The goal is to prevent pests from reaching damaging levels.
Rationale: IPM is a balanced approach that uses various tactics (biological, cultural, etc.) to
keep pest populations below an "action threshold" where they would cause unacceptable
economic or aesthetic damage.
Question 8
Which of the following would be considered a "preventive" pest management strategy?
A) Spraying an active infestation of locusts.
B) Planting weed-free and disease-free seed.
C) Calling an exterminator after seeing a cockroach.
D) Setting a trap for a mouse currently in the kitchen.
E) Removing a tree that has already died from root rot.
Correct Answer: B) Planting weed- and disease-free seed on an athletic field.
Rationale: Prevention involves taking action before the pest is present. Using certified clean
seed ensures that weeds and pathogens are not introduced to the site in the first place.
Question 9
Which statement about "action thresholds" is TRUE?
A) They are always set at the point where the first pest is seen.
B) The threshold may be set at zero for pests that pose a serious public health threat.
C) Technicians should only spray when the population is well below the threshold.
D) Action thresholds are only applicable in agricultural settings, not urban ones.
E) Thresholds are dictated by the pesticide manufacturer.
Correct Answer: B) The action threshold for a pest may be set at a zero pest population
density.
Rationale: While some pests can be tolerated at low levels, others (like those carrying the
plague or germs in a hospital) have a "zero tolerance" threshold, meaning action is taken if
even one is detected.
Question 10
Which of the following practices would INCREASE the likelihood of pests developing pesticide
resistance?
A) Rotating between different chemical classes of pesticides.
B) Continual use of pesticides from the same chemical class.
C) Using non-chemical control methods in conjunction with sprays.
D) Applying pesticides only when the action threshold is reached.
E) Using a pesticide with a very short residual life.
Correct Answer: B) Continual use of pesticides from the same chemical class.
Rationale: If the same "mode of action" is used repeatedly, the few pests that survive will