Missouri Pesticide Applicators Exam 200 Questions
and Correct Answers With Rationales
Question 1: Under the Missouri Pesticide Use Act, which individual must be licensed
to apply any pesticide for hire or compensation on another person's property?
A. Private applicator
B. Homeowner applying to their own garden
C. Certified commercial applicator
D. Noncertified employee working alone
CORRECT ANSWER: C. Certified commercial applicator
Rationale: The Missouri Pesticide Use Act requires any individual who applies
pesticides on the lands of another for hire, fee, or compensation to hold a certified
commercial applicator license, regardless of whether the pesticide is general-use or
restricted-use.
Question 2: What is the minimum passing score required on Missouri pesticide
certification examinations administered by Pearson VUE?
A. 60 percent
B. 65 percent
C. 70 percent
D. 75 percent
CORRECT ANSWER: C. 70 percent
Rationale: Missouri Department of Agriculture regulations require applicants to
achieve a minimum score of 70 percent on both the core examination and any
category-specific examination to qualify for certification.
Question 3: Which Missouri agency administers the state pesticide certification and
licensing program under authority of the Missouri Pesticide Use Act?
A. Missouri Department of Natural Resources
B. Missouri Department of Agriculture
,C. University of Missouri Extension
D. Missouri Environmental Protection Agency
CORRECT ANSWER: B. Missouri Department of Agriculture
Rationale: The Missouri Department of Agriculture's Bureau of Pesticide Control is
the designated state lead agency responsible for administering pesticide applicator
certification, licensing, and enforcement under the Missouri Pesticide Use Act.
Question 4: A certified private applicator in Missouri is authorized to apply
restricted-use pesticides only on property that is:
A. Owned or rented by the applicator or the applicator's employer for agricultural
production
B. Any agricultural land within the state of Missouri
C. Limited to the applicator's county of residence
D. Approved in advance by the Missouri Department of Agriculture
CORRECT ANSWER: A. Owned or rented by the applicator or the applicator's
employer for agricultural production
Rationale: Missouri law defines a certified private applicator as an individual who
uses or supervises the use of restricted-use pesticides for producing agricultural
commodities on property owned or rented by themselves or their employer.
Question 5: Which signal word on a pesticide label indicates the highest level of
acute toxicity under EPA classification?
A. Caution
B. Warning
C. Danger
D. Notice
CORRECT ANSWER: C. Danger
Rationale: EPA toxicity categories assign "Danger" (often with "Poison" and skull-
and-crossbones) to Category I pesticides with the highest acute toxicity, followed by
"Warning" for Category II, and "Caution" for Categories III and IV.
,Question 6: Under Missouri regulations, how long must certified commercial
applicators maintain records of pesticide applications?
A. 1 year
B. 2 years
C. 3 years
D. 5 years
CORRECT ANSWER: C. 3 years
Rationale: The Missouri Pesticide Use Act requires certified commercial applicators
to maintain application records for three years in a neat and legible condition,
available for inspection during regular business hours.
Question 7: Which of the following is NOT required information on a commercial
pesticide application record in Missouri?
A. Name and license number of the certified applicator
B. Air temperature and wind speed at time of application
C. Social security number of the property owner
D. EPA registration number of the pesticide used
CORRECT ANSWER: C. Social security number of the property owner
Rationale: Missouri recordkeeping requirements include applicator license number,
application date, site description, pest controlled, pesticide trade name and EPA
number, amount used, and weather conditions—but never personal identifiers like
social security numbers.
Question 8: What does the acronym FIFRA stand for?
A. Federal Insecticide, Fungicide, and Rodenticide Act
B. Federal Integrated Farm and Insecticide Regulatory Act
C. Federal Information on Fungicide and Rodenticide Applications
D. Federal Inspection Framework for Insecticide Regulatory Assessment
, CORRECT ANSWER: A. Federal Insecticide, Fungicide, and Rodenticide Act
Rationale: FIFRA is the primary federal law governing pesticide registration,
distribution, sale, and use in the United States, administered by the U.S.
Environmental Protection Agency.
Question 9: Which Missouri pesticide certification category covers applications to
control pests on golf courses?
A. Category 1a: Agricultural Plant Pest Control
B. Category 3: Ornamental and Turf Pest Control
C. Category 7a: General Structural Pest Control
D. Category 8: Public Health Pest Control
CORRECT ANSWER: B. Category 3: Ornamental and Turf Pest Control
Rationale: Category 3 specifically addresses pest management in ornamental plants,
turfgrass, and landscapes, which includes golf course maintenance and pest control
activities.
Question 10: Under the Worker Protection Standard (WPS), what is the minimum age
for an individual to handle pesticides or perform handler tasks?
A. 16 years
B. 18 years
C. 21 years
D. No minimum age if supervised
CORRECT ANSWER: B. 18 years
Rationale: The EPA Worker Protection Standard prohibits anyone under 18 years of
age from performing pesticide handler tasks, including mixing, loading, or applying
pesticides, with very limited exceptions for family-owned operations.
Question 11: Which measure of central tendency is most influenced by extreme
outliers in a dataset?
A. Median
and Correct Answers With Rationales
Question 1: Under the Missouri Pesticide Use Act, which individual must be licensed
to apply any pesticide for hire or compensation on another person's property?
A. Private applicator
B. Homeowner applying to their own garden
C. Certified commercial applicator
D. Noncertified employee working alone
CORRECT ANSWER: C. Certified commercial applicator
Rationale: The Missouri Pesticide Use Act requires any individual who applies
pesticides on the lands of another for hire, fee, or compensation to hold a certified
commercial applicator license, regardless of whether the pesticide is general-use or
restricted-use.
Question 2: What is the minimum passing score required on Missouri pesticide
certification examinations administered by Pearson VUE?
A. 60 percent
B. 65 percent
C. 70 percent
D. 75 percent
CORRECT ANSWER: C. 70 percent
Rationale: Missouri Department of Agriculture regulations require applicants to
achieve a minimum score of 70 percent on both the core examination and any
category-specific examination to qualify for certification.
Question 3: Which Missouri agency administers the state pesticide certification and
licensing program under authority of the Missouri Pesticide Use Act?
A. Missouri Department of Natural Resources
B. Missouri Department of Agriculture
,C. University of Missouri Extension
D. Missouri Environmental Protection Agency
CORRECT ANSWER: B. Missouri Department of Agriculture
Rationale: The Missouri Department of Agriculture's Bureau of Pesticide Control is
the designated state lead agency responsible for administering pesticide applicator
certification, licensing, and enforcement under the Missouri Pesticide Use Act.
Question 4: A certified private applicator in Missouri is authorized to apply
restricted-use pesticides only on property that is:
A. Owned or rented by the applicator or the applicator's employer for agricultural
production
B. Any agricultural land within the state of Missouri
C. Limited to the applicator's county of residence
D. Approved in advance by the Missouri Department of Agriculture
CORRECT ANSWER: A. Owned or rented by the applicator or the applicator's
employer for agricultural production
Rationale: Missouri law defines a certified private applicator as an individual who
uses or supervises the use of restricted-use pesticides for producing agricultural
commodities on property owned or rented by themselves or their employer.
Question 5: Which signal word on a pesticide label indicates the highest level of
acute toxicity under EPA classification?
A. Caution
B. Warning
C. Danger
D. Notice
CORRECT ANSWER: C. Danger
Rationale: EPA toxicity categories assign "Danger" (often with "Poison" and skull-
and-crossbones) to Category I pesticides with the highest acute toxicity, followed by
"Warning" for Category II, and "Caution" for Categories III and IV.
,Question 6: Under Missouri regulations, how long must certified commercial
applicators maintain records of pesticide applications?
A. 1 year
B. 2 years
C. 3 years
D. 5 years
CORRECT ANSWER: C. 3 years
Rationale: The Missouri Pesticide Use Act requires certified commercial applicators
to maintain application records for three years in a neat and legible condition,
available for inspection during regular business hours.
Question 7: Which of the following is NOT required information on a commercial
pesticide application record in Missouri?
A. Name and license number of the certified applicator
B. Air temperature and wind speed at time of application
C. Social security number of the property owner
D. EPA registration number of the pesticide used
CORRECT ANSWER: C. Social security number of the property owner
Rationale: Missouri recordkeeping requirements include applicator license number,
application date, site description, pest controlled, pesticide trade name and EPA
number, amount used, and weather conditions—but never personal identifiers like
social security numbers.
Question 8: What does the acronym FIFRA stand for?
A. Federal Insecticide, Fungicide, and Rodenticide Act
B. Federal Integrated Farm and Insecticide Regulatory Act
C. Federal Information on Fungicide and Rodenticide Applications
D. Federal Inspection Framework for Insecticide Regulatory Assessment
, CORRECT ANSWER: A. Federal Insecticide, Fungicide, and Rodenticide Act
Rationale: FIFRA is the primary federal law governing pesticide registration,
distribution, sale, and use in the United States, administered by the U.S.
Environmental Protection Agency.
Question 9: Which Missouri pesticide certification category covers applications to
control pests on golf courses?
A. Category 1a: Agricultural Plant Pest Control
B. Category 3: Ornamental and Turf Pest Control
C. Category 7a: General Structural Pest Control
D. Category 8: Public Health Pest Control
CORRECT ANSWER: B. Category 3: Ornamental and Turf Pest Control
Rationale: Category 3 specifically addresses pest management in ornamental plants,
turfgrass, and landscapes, which includes golf course maintenance and pest control
activities.
Question 10: Under the Worker Protection Standard (WPS), what is the minimum age
for an individual to handle pesticides or perform handler tasks?
A. 16 years
B. 18 years
C. 21 years
D. No minimum age if supervised
CORRECT ANSWER: B. 18 years
Rationale: The EPA Worker Protection Standard prohibits anyone under 18 years of
age from performing pesticide handler tasks, including mixing, loading, or applying
pesticides, with very limited exceptions for family-owned operations.
Question 11: Which measure of central tendency is most influenced by extreme
outliers in a dataset?
A. Median
