OH Pesticide Certification – CORE Exam with
verified detailed solutions and rationales
A pest can be anything that:
a. Competes with humans, domestic animals or desirable plants for food or water
b. Injures humans, animals, desirable plants, structures, or possessions
c. Spreads disease to humans, domestic animals, wildlife, or desirable plants
d. Annoys human or domestic animals
e. All of the above - correct answer✔✔E. A pest can be anything that annoys, injures,
spreads disease or competes with desired plants, animals, or humans. Examples of pests
include weeds, insects, fungi, bacteria, mites and nematodes
One requirement for effective pest control is:
a. Identification of the pest to be controlled
b. New spray equipment
c. Using more than the recommended dosage
d. Spraying only the field margin - correct answer✔✔A. Identifying the pest is the first step.
Additionally, it is necessary to know what control methods are available; evaluate the
benefits and risks of each method or combination of methods; choose the methods that are
most effective and will cause the least harm to people and the environment; use each
method correctly; and observe local, state, and federal regulations that apply to the situation.
A pest-control method should be used only when that method will cost less than the
expected value of a loss from the pest.
a. True
b. False - correct answer✔✔A. Even though a pest is present, it may not do very much harm.
It could cost more to control the pest than to allow the damage to occur. The point at which
the cost of the damage exceeds the cost of the control is the "economic threshold."
,Successful pest control is based on the ability to:
a. Eradicate all pests
b. Use pesticides whenever pests are identified
c. Contaminate the environment
d. None of the above - correct answer✔✔D. The best answer should be to: 1) keep pest
damage to a minimum by choosing an appropriate combination of control methods, 2)
recognize when direct action is necessary, and 3) endanger the environment as little as
possible
Which of the following is NOT a pest control goal?
a. Prevention - keeping a pest from becoming a problem
b. Suppression - reducing pest numbers to an acceptable level
c. Eradication - destroying an entire pest population
d. All of the above are possible goals - correct answer✔✔D. Prevention and suppression are
common goals. Eradication is a difficult goal to achieve, especially in outdoor areas, but may
be attempted when a foreign pest has been introduced into an area (e.g. gypsy moth,
Mediterranean fruit fly, etc.). Eradication is a more common goal in indoor areas.
The strategy of combining pest control tactics into a single plan to reduce pests and their
damage to an acceptable level is called:
a. Holistic Resource Management Plan
b. Biological Control
c. Best Management Practices
d. Integrated Pest Management - correct answer✔✔D. Biological control is a tactic of
Integrated Pest Management (IPM). IPM is one component of a holistic resource
management plan and is an example of a Best Management Practice.
,When the level of a pest population reaches the stage where pest control action should be
taken, you are at the:
a. Scouting stage
b. Monitoring stage
c. Threshold stage
d. Pesticide application stage - correct answer✔✔C. Thresholds maybe based on aesthetic,
health, or economic considerations. Action thresholds have been determined for many pests.
Which of the following is NOT an example of a control tactic?
a. Pesticide resistance - the ability of a pest to resist pesticide control measures
b. Biological control - using natural predators to control pests
c. Cultural controls - such as crop rotation, date of planting, cultivation, etc.
d. Chemical control - the use of pesticides - correct answer✔✔A. Do not confuse pest
resistance with host resistance. Some plants and animals resist pests better than others
The ability of a pest to resist or avoid poisoning from a pesticide even when it has been
properly applied is called:
a. Efficacy
b. Pesticide resistance
c. Dormancy
d. Antagonism - correct answer✔✔B. Each time a pesticide is used, it selectively kills the
most susceptible pests. Some pests are able to withstand its effects. These pests may be able
to pass along this trait to their offspring. Continued use of the same pesticide may allow the
resistant offspring to multiply. This phenomenon is known as pesticide resistance.
What is pesticide labeling?
a. A sticker stating the price of the product
b. A piece of paper containing product name and promotional information
, c. Rebate/Guarantee information
d. None of the above
e. All of the above - correct answer✔✔D. Pesticide labeling is all the information received
from the manufacture about a pesticide product. It contains the information on how to use
the product. It should emphasize that adherence to pesticide labeling directions almost
eliminates personal, personnel, and environmental contamination. It is a violation of state
and federal law to use a pesticide inconsistent with its labeling.
What is a pesticide label?
a. Information attached to the pesticide container
b. Material safety data sheets
c. An informational brochure
d. All of the above - correct answer✔✔The pesticide label in the information attached to the
pesticide container and it is a part of pesticide labeling. To correctly use a pesticide,
applicators must have and comply with pesticide labeling directives.
It is a violation of the Ohio pesticide law and/or FIFRA to:
a. Use a pesticide on a crop not listed on the label
b. Operate faulty or unsafe spraying equipment
c. Use a pesticide at a higher concentration than is stated on the label
d. All of the above are correct
e. Only a and c are correct - correct answer✔✔D. It is in violation of state and federal law to
use a pesticide inconsistent with its labeling directions. Pesticides can be tank mixed with
other pesticides as long as both pesticides can be used on the plants, animals or sites listed in
the labeling directions. Pesticides can be mixed with fertilizer if allowed by label directions.
Also, you may apply a pesticide against a target pest not listed on the label, provided the
crop, animal and site are on the label.
Before a pesticide can be sold or used in the United States, it must be:
verified detailed solutions and rationales
A pest can be anything that:
a. Competes with humans, domestic animals or desirable plants for food or water
b. Injures humans, animals, desirable plants, structures, or possessions
c. Spreads disease to humans, domestic animals, wildlife, or desirable plants
d. Annoys human or domestic animals
e. All of the above - correct answer✔✔E. A pest can be anything that annoys, injures,
spreads disease or competes with desired plants, animals, or humans. Examples of pests
include weeds, insects, fungi, bacteria, mites and nematodes
One requirement for effective pest control is:
a. Identification of the pest to be controlled
b. New spray equipment
c. Using more than the recommended dosage
d. Spraying only the field margin - correct answer✔✔A. Identifying the pest is the first step.
Additionally, it is necessary to know what control methods are available; evaluate the
benefits and risks of each method or combination of methods; choose the methods that are
most effective and will cause the least harm to people and the environment; use each
method correctly; and observe local, state, and federal regulations that apply to the situation.
A pest-control method should be used only when that method will cost less than the
expected value of a loss from the pest.
a. True
b. False - correct answer✔✔A. Even though a pest is present, it may not do very much harm.
It could cost more to control the pest than to allow the damage to occur. The point at which
the cost of the damage exceeds the cost of the control is the "economic threshold."
,Successful pest control is based on the ability to:
a. Eradicate all pests
b. Use pesticides whenever pests are identified
c. Contaminate the environment
d. None of the above - correct answer✔✔D. The best answer should be to: 1) keep pest
damage to a minimum by choosing an appropriate combination of control methods, 2)
recognize when direct action is necessary, and 3) endanger the environment as little as
possible
Which of the following is NOT a pest control goal?
a. Prevention - keeping a pest from becoming a problem
b. Suppression - reducing pest numbers to an acceptable level
c. Eradication - destroying an entire pest population
d. All of the above are possible goals - correct answer✔✔D. Prevention and suppression are
common goals. Eradication is a difficult goal to achieve, especially in outdoor areas, but may
be attempted when a foreign pest has been introduced into an area (e.g. gypsy moth,
Mediterranean fruit fly, etc.). Eradication is a more common goal in indoor areas.
The strategy of combining pest control tactics into a single plan to reduce pests and their
damage to an acceptable level is called:
a. Holistic Resource Management Plan
b. Biological Control
c. Best Management Practices
d. Integrated Pest Management - correct answer✔✔D. Biological control is a tactic of
Integrated Pest Management (IPM). IPM is one component of a holistic resource
management plan and is an example of a Best Management Practice.
,When the level of a pest population reaches the stage where pest control action should be
taken, you are at the:
a. Scouting stage
b. Monitoring stage
c. Threshold stage
d. Pesticide application stage - correct answer✔✔C. Thresholds maybe based on aesthetic,
health, or economic considerations. Action thresholds have been determined for many pests.
Which of the following is NOT an example of a control tactic?
a. Pesticide resistance - the ability of a pest to resist pesticide control measures
b. Biological control - using natural predators to control pests
c. Cultural controls - such as crop rotation, date of planting, cultivation, etc.
d. Chemical control - the use of pesticides - correct answer✔✔A. Do not confuse pest
resistance with host resistance. Some plants and animals resist pests better than others
The ability of a pest to resist or avoid poisoning from a pesticide even when it has been
properly applied is called:
a. Efficacy
b. Pesticide resistance
c. Dormancy
d. Antagonism - correct answer✔✔B. Each time a pesticide is used, it selectively kills the
most susceptible pests. Some pests are able to withstand its effects. These pests may be able
to pass along this trait to their offspring. Continued use of the same pesticide may allow the
resistant offspring to multiply. This phenomenon is known as pesticide resistance.
What is pesticide labeling?
a. A sticker stating the price of the product
b. A piece of paper containing product name and promotional information
, c. Rebate/Guarantee information
d. None of the above
e. All of the above - correct answer✔✔D. Pesticide labeling is all the information received
from the manufacture about a pesticide product. It contains the information on how to use
the product. It should emphasize that adherence to pesticide labeling directions almost
eliminates personal, personnel, and environmental contamination. It is a violation of state
and federal law to use a pesticide inconsistent with its labeling.
What is a pesticide label?
a. Information attached to the pesticide container
b. Material safety data sheets
c. An informational brochure
d. All of the above - correct answer✔✔The pesticide label in the information attached to the
pesticide container and it is a part of pesticide labeling. To correctly use a pesticide,
applicators must have and comply with pesticide labeling directives.
It is a violation of the Ohio pesticide law and/or FIFRA to:
a. Use a pesticide on a crop not listed on the label
b. Operate faulty or unsafe spraying equipment
c. Use a pesticide at a higher concentration than is stated on the label
d. All of the above are correct
e. Only a and c are correct - correct answer✔✔D. It is in violation of state and federal law to
use a pesticide inconsistent with its labeling directions. Pesticides can be tank mixed with
other pesticides as long as both pesticides can be used on the plants, animals or sites listed in
the labeling directions. Pesticides can be mixed with fertilizer if allowed by label directions.
Also, you may apply a pesticide against a target pest not listed on the label, provided the
crop, animal and site are on the label.
Before a pesticide can be sold or used in the United States, it must be:
