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MDARD Commercial Pesticide Applicator Exam: Aquatic
Pest Management (Category 5) Exam Newest 2025-2026 /
MDARD Commercial Pesticide Applicator Exam: Aquatic
Pest Management (Category 5) Preparation/MDARD
Commercial Pesticide Applicator Exam: Aquatic Pest
Management (Category 5) Practice Exam With Complete
200 Questions And Correct Answers| Brand New Version!
Algae that resembles vascular plants and aid in the prevention of other
nuisance algae from growing - ANSWER-Erect algae
Plant type that grows completely underwater - ANSWER-Submersed
Aquatic plant type that is rooted in sediment and extends above the
water surface - ANSWER-Emersed / emergent
Aquatic plant type that is not attached to sediment and floats on or just
below the water surface - ANSWER-Free-floating
Aquatic plant type that's attached to sediment and has leaves that float
on the water surface - ANSWER-Rooted-floating
Watermilfoil main reproduction technique - ANSWER-Fragmentation
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Curly-leaf pondweed main reproduction technique - ANSWER-
Rhizomes and turions
Which invasive plant has pesticide-resistant reproductive structures that
can lay dormant in substrate only to sprout when conditions are right? -
ANSWER-Curly-leaf pondweed
Which plant can be desirable in lake bottoms, but nuisance when they
grow to the surface? - ANSWER-Naiad
Naiad main reproduction technique - ANSWER-Seed (annual) but also
by fragmentation
What necessary and beneficial roles do native plants fulfill in their
aquatic ecosystem? (3) - ANSWER-1. Provide food, habitat or shelter
2. As stabilizing features of the substrate
3. Filter storm and runoff water
Dormant leaf structures that are not affected by herbicides and are used
primarily for reproduction in the curly-leaf pondweed - ANSWER-
Turions
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The process of adding nutrients to a body of water that in turn increases
the production of plants and algae - ANSWER-Eutrophication
Nutrient of highest concern in regards to eutrophication - ANSWER-
Phosphorus (nitrogen second)
Ways carbon can enter the water (2) - ANSWER-1. Atmosphere in the
form of CO2
2. In the water as dissolved bicarbonate compounds (HCO3)
Cultural technique used to control weeds by draining the water level to
expose weeds - ANSWER-Winter drawdown
True or false: All native aquatic plants benefit from winter drawdowns -
ANSWER-False
Cultural technique used to cover bottom sediments with material -
ANSWER-Benthic Barriers
What color dye should be used to act as a light screen for plants? -
ANSWER-Blue (plants absorb blue light for photosythesis)
Aeration may control ________ but does not affect ________ -
ANSWER-algae, macrophytes
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Two most notable species introduced to biologically control aquatic
weeds in Michigan (but is strictly prohibited now) - ANSWER-tilapia,
grass carp
Disadvantages of grass carp introduction as a biological control -
ANSWER-Eat too many native plants before consuming exotic species
What is the alteration of the food web in an area to improve water
clarity? - ANSWER-Biomanipulation
The three major objectives of preventative aquatic weed control -
ANSWER-1. Prevention of weed spread
2. Elimination of nutrient sources
3. Deepening or increasing the slope of shallow waters where plants can
grow
List 5 of the 8 methods for reducing nutrient and other contaminating
inflows to water sources - ANSWER-1. Plant vegetation along drainage
areas
2. Leave a 20-foot buffer for fertilization
3. Prevent livestock from entering the water
4. Practice conservation tillage to prevent erosion
MDARD Commercial Pesticide Applicator Exam: Aquatic
Pest Management (Category 5) Exam Newest 2025-2026 /
MDARD Commercial Pesticide Applicator Exam: Aquatic
Pest Management (Category 5) Preparation/MDARD
Commercial Pesticide Applicator Exam: Aquatic Pest
Management (Category 5) Practice Exam With Complete
200 Questions And Correct Answers| Brand New Version!
Algae that resembles vascular plants and aid in the prevention of other
nuisance algae from growing - ANSWER-Erect algae
Plant type that grows completely underwater - ANSWER-Submersed
Aquatic plant type that is rooted in sediment and extends above the
water surface - ANSWER-Emersed / emergent
Aquatic plant type that is not attached to sediment and floats on or just
below the water surface - ANSWER-Free-floating
Aquatic plant type that's attached to sediment and has leaves that float
on the water surface - ANSWER-Rooted-floating
Watermilfoil main reproduction technique - ANSWER-Fragmentation
,2|Page
Curly-leaf pondweed main reproduction technique - ANSWER-
Rhizomes and turions
Which invasive plant has pesticide-resistant reproductive structures that
can lay dormant in substrate only to sprout when conditions are right? -
ANSWER-Curly-leaf pondweed
Which plant can be desirable in lake bottoms, but nuisance when they
grow to the surface? - ANSWER-Naiad
Naiad main reproduction technique - ANSWER-Seed (annual) but also
by fragmentation
What necessary and beneficial roles do native plants fulfill in their
aquatic ecosystem? (3) - ANSWER-1. Provide food, habitat or shelter
2. As stabilizing features of the substrate
3. Filter storm and runoff water
Dormant leaf structures that are not affected by herbicides and are used
primarily for reproduction in the curly-leaf pondweed - ANSWER-
Turions
,3|Page
The process of adding nutrients to a body of water that in turn increases
the production of plants and algae - ANSWER-Eutrophication
Nutrient of highest concern in regards to eutrophication - ANSWER-
Phosphorus (nitrogen second)
Ways carbon can enter the water (2) - ANSWER-1. Atmosphere in the
form of CO2
2. In the water as dissolved bicarbonate compounds (HCO3)
Cultural technique used to control weeds by draining the water level to
expose weeds - ANSWER-Winter drawdown
True or false: All native aquatic plants benefit from winter drawdowns -
ANSWER-False
Cultural technique used to cover bottom sediments with material -
ANSWER-Benthic Barriers
What color dye should be used to act as a light screen for plants? -
ANSWER-Blue (plants absorb blue light for photosythesis)
Aeration may control ________ but does not affect ________ -
ANSWER-algae, macrophytes
, 4|Page
Two most notable species introduced to biologically control aquatic
weeds in Michigan (but is strictly prohibited now) - ANSWER-tilapia,
grass carp
Disadvantages of grass carp introduction as a biological control -
ANSWER-Eat too many native plants before consuming exotic species
What is the alteration of the food web in an area to improve water
clarity? - ANSWER-Biomanipulation
The three major objectives of preventative aquatic weed control -
ANSWER-1. Prevention of weed spread
2. Elimination of nutrient sources
3. Deepening or increasing the slope of shallow waters where plants can
grow
List 5 of the 8 methods for reducing nutrient and other contaminating
inflows to water sources - ANSWER-1. Plant vegetation along drainage
areas
2. Leave a 20-foot buffer for fertilization
3. Prevent livestock from entering the water
4. Practice conservation tillage to prevent erosion
