QAC Aquatic Pest Control Practice Questions &
100% Correct Answers
Characteristics of noxious aquatic weeds
grow rapidly, displace natives, interfere with use of water
Four main categories of aquatic weeds
submersed, emersed, free floating, and algae
Most troublesome aquatic weed
Water Hyacinth
Decomposing weeds deplete oxygen levels, resulting in
fish kills
What is not characteristic of asexual reproduction
seed production
Aquatic weeds that reproduce asexually and sexually
have high chance of survival
aquatic weeds crowd out other plants by
early emergence and rapid growth
Allelopathy
The production of chemicals by plants that inhibit the growth of neighbouring plants
Exotic aquatic weeds
, not native to the specific area
portion of water having enough light to support growth
Photic zone
Secchi Disk
black/white disk to measure water clarity
Hard water is high in
calcium and potassium
First step in aquatic weed control
Identify weeds to be controlled
Biennial
completes life cycle in two years
Algae reproduce by
cell division, fragmentation, and spores
planktonic algae colors the water in a phenomena known as
bloom
Most common type of nuisance algae
blue-green algae
Charophytes
100% Correct Answers
Characteristics of noxious aquatic weeds
grow rapidly, displace natives, interfere with use of water
Four main categories of aquatic weeds
submersed, emersed, free floating, and algae
Most troublesome aquatic weed
Water Hyacinth
Decomposing weeds deplete oxygen levels, resulting in
fish kills
What is not characteristic of asexual reproduction
seed production
Aquatic weeds that reproduce asexually and sexually
have high chance of survival
aquatic weeds crowd out other plants by
early emergence and rapid growth
Allelopathy
The production of chemicals by plants that inhibit the growth of neighbouring plants
Exotic aquatic weeds
, not native to the specific area
portion of water having enough light to support growth
Photic zone
Secchi Disk
black/white disk to measure water clarity
Hard water is high in
calcium and potassium
First step in aquatic weed control
Identify weeds to be controlled
Biennial
completes life cycle in two years
Algae reproduce by
cell division, fragmentation, and spores
planktonic algae colors the water in a phenomena known as
bloom
Most common type of nuisance algae
blue-green algae
Charophytes
