FLORIDA AQUATIC PEST CONTROL
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the main goal of aquatic pest control?
A. To eliminate all aquatic vegetation
B. To completely sterilize water bodies
C. To manage aquatic pests while minimizing harm to the environment
D. To prevent fish reproduction
Rationale: Aquatic pest control focuses on integrated methods that protect
water ecosystems while reducing harmful organisms.
2. Which of the following is a selective herbicide used in aquatic
environments?
A. Copper sulfate
B. 2,4-D
,C. Glyphosate
D. Diquat
Rationale: 2,4-D selectively targets broadleaf plants and is used for aquatic
weed control without harming grasses.
3. What does the term “half-life” refer to in pesticide application?
A. The time it takes to apply half the pesticide
B. The time it takes for the pesticide to evaporate
C. The time required for half of the pesticide to degrade in the
environment
D. The period between applications
Rationale: Half-life is a measure of how persistent a pesticide is in the
environment.
4. Which of the following is a common emergent aquatic plant targeted in
Florida pest control programs?
A. Hydrilla
B. Water hyacinth
C. Cattail
D. Duckweed
Rationale: Cattail is an emergent plant often managed in Florida's aquatic
systems.
,5. What federal agency regulates pesticide use in the U.S.?
A. USDA
B. FDA
C. EPA
D. CDC
Rationale: The Environmental Protection Agency (EPA) is responsible for
regulating pesticides nationally.
6. What is the purpose of a surfactant in aquatic herbicide application?
A. Dilute the pesticide
B. Help herbicides stick to plant surfaces
C. Prevent herbicide runoff
D. Increase pesticide pH
Rationale: Surfactants reduce surface tension to improve coverage and
absorption.
7. Hydrilla is a(n):
A. Submersed invasive plant
B. Emergent native plant
C. Floating native plant
, D. Algal bloom
Rationale: Hydrilla is a major submersed invasive aquatic plant in Florida.
8. According to Florida law, who can apply restricted-use aquatic
herbicides?
A. Any property owner
B. Anyone over 18
C. A licensed applicator
D. Government employees only
Rationale: Restricted-use pesticides can only be applied by licensed
individuals.
9. What is the best time of year to treat aquatic weeds for maximum
control?
A. Winter
B. Early growing season (spring)
C. Late fall
D. Mid-summer
Rationale: Treating weeds early in the season helps prevent rapid spread.
10. Which type of control uses triploid grass carp in Florida?
A. Mechanical
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the main goal of aquatic pest control?
A. To eliminate all aquatic vegetation
B. To completely sterilize water bodies
C. To manage aquatic pests while minimizing harm to the environment
D. To prevent fish reproduction
Rationale: Aquatic pest control focuses on integrated methods that protect
water ecosystems while reducing harmful organisms.
2. Which of the following is a selective herbicide used in aquatic
environments?
A. Copper sulfate
B. 2,4-D
,C. Glyphosate
D. Diquat
Rationale: 2,4-D selectively targets broadleaf plants and is used for aquatic
weed control without harming grasses.
3. What does the term “half-life” refer to in pesticide application?
A. The time it takes to apply half the pesticide
B. The time it takes for the pesticide to evaporate
C. The time required for half of the pesticide to degrade in the
environment
D. The period between applications
Rationale: Half-life is a measure of how persistent a pesticide is in the
environment.
4. Which of the following is a common emergent aquatic plant targeted in
Florida pest control programs?
A. Hydrilla
B. Water hyacinth
C. Cattail
D. Duckweed
Rationale: Cattail is an emergent plant often managed in Florida's aquatic
systems.
,5. What federal agency regulates pesticide use in the U.S.?
A. USDA
B. FDA
C. EPA
D. CDC
Rationale: The Environmental Protection Agency (EPA) is responsible for
regulating pesticides nationally.
6. What is the purpose of a surfactant in aquatic herbicide application?
A. Dilute the pesticide
B. Help herbicides stick to plant surfaces
C. Prevent herbicide runoff
D. Increase pesticide pH
Rationale: Surfactants reduce surface tension to improve coverage and
absorption.
7. Hydrilla is a(n):
A. Submersed invasive plant
B. Emergent native plant
C. Floating native plant
, D. Algal bloom
Rationale: Hydrilla is a major submersed invasive aquatic plant in Florida.
8. According to Florida law, who can apply restricted-use aquatic
herbicides?
A. Any property owner
B. Anyone over 18
C. A licensed applicator
D. Government employees only
Rationale: Restricted-use pesticides can only be applied by licensed
individuals.
9. What is the best time of year to treat aquatic weeds for maximum
control?
A. Winter
B. Early growing season (spring)
C. Late fall
D. Mid-summer
Rationale: Treating weeds early in the season helps prevent rapid spread.
10. Which type of control uses triploid grass carp in Florida?
A. Mechanical
