AQUATIC PESTICIDE APPLICATOR EXAM
SCRIPT 2026 QUESTIONS WITH ANSWERS
◉ 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
◉ 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
◉ 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
◉ 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
SCRIPT 2026 QUESTIONS WITH ANSWERS
◉ 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
◉ 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
◉ 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
◉ 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
