Aquatic Ecosystems, Mosquito Control, And
Pesticide Management
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Terms in this set (304)
Produce oxygen for other organisms, prevent
shoreline erosion, lessen excess nutrients, stabilize
Roles of aquatic plants
the lake bottom, provide food and habitat for fish,
waterfowl and aquatic animals.
Harm the ecology of aquatic ecosystem, curtail or
prevent recreational water use, impact tastes or
Adverse effects of odors to drinking water, hamper water treatment
excessive plant growth operations, adversely affect aesthetics, resort trade,
and waterfront property values or produce toxins
that harm animals that drink water.
Rooted plants with most of growth above water,
Emergent aquatic plants spread by roots, can grow densely enough to
exclude recreational water use.
Grow primarily under water, pondweeds disperse
by roots and runners and seeds, usually not a
Submergent aquatic nuisance except for curlyleaf pondweed; plants with
plants whorled leaves disperse by wind and water
movements, may clutter shoreline and create
nuisance if not raked up when cut.
Free-floating aquatic Grow on water surface, windblown, difficult to
plants control due to drifting and layering.
Rooted floating-leaved Rooted rarely a nuisance.
aquatic plants
Grow on water surface, masses can accumulate, can
Free-floating algae
cause toxic compounds.
, Attach to rocks, weeds, or other anchoring objects;
Filamentous algae attached to bottom but don't have true roots, best
to leave alone.
Advantages of chemical Offer longer lasting control than mechanical
control of aquatic plants methods, may involve less physical labor and cost
and algae less, selective chemical treatment can be important.
Can lead to restrictions on water, if too much plant
Disadvantages of
material killed can lead to problems with oxygen
chemical control of
depletion and release of nutrients in water, and risk
aquatic plants and algae
to people and nontarget organisms.
Help maintain balanced communities by feeding on
Beneficial roles of WI fish
plants, fish, insects, provide food source, fishing for
populations
food and sport very popular.
To eliminate undesirable or competing fish, remove
exotic or other undesirable species, thin stunted fish
to bring fish population to balance, eliminate fish
Situations for fish control
from hatchery water supply to prevent potential
reservoir of disease causing organisms, treat fish
spawning sites to prevent overpopulation.
Adequate planning and management after
Importance of post- treatment needed, competition for food and space
treatment management decreased and fish stocked after treatment, fill void
within 3 years.
Reasons for mosquito When they are a nuisance.
control
Egg Elongate and 1/25 inch light in color and turn dark.
"Wiggler" that passes through 4 stages called
Larva
instars, has a head, thorax, and abdomen.
Comma-shaped "tumbler" transitional non-feeding
Pupae stage that lasts a few days, consists of
cephalothorax and abdomen.
Has a slender abdomen, one pair of narrow wings, 3
Adult pairs of long slender legs, and an elongated
proboscis.
, "Tree-hole mosquito" that breeds in old tires, cans,
barrels, and tree holes and stumps, lays eggs above
Aedes triseriatus
the water line, has several generations in a year, and
females feed during the day.
"Inland floodwater mosquito" whose larvae can be
found in roadside puddles, woodland pools,
shallow open contemporary pools, and river
bottoms, continually breeds during wet years,
Aedes vexans
survives winter and dry periods in the egg stage,
migrates 15 to 20 miles, lives 3-4 weeks, and eggs
can be dormant up to 5 years, feeds mostly at dusk
or after dawn.
Breeds in temporary or permanent pools of water
high in organic material, or artificial containers or
Culex pipiens ditches and sewage lagoons, lays eggs in rafts and
hatches quickly, and transmits two diseases: St. Louis
encephalitis and West Nile.
La Crosse Encephalitis Carried by Aedes triseriatus.
West Nile Virus (WNV) Carried by Culex pipiens.
Caused by roundworm, can be transmitted by
Dog Heartworm
Aedes vexans.
Any substance used to directly control pest
Pesticide populations or to prevent or reduce pest damage;
not all kill target pests.
Means to kill, and can refer to pests such as insects,
weeds, fungi, mice, or others; not all kill - some
"Cide"
repel, inhibit growth, or reduce capacity to
reproduce.
Organic pesticides Compounds that contain the element carbon.
Inorganic pesticides Derived from minerals that occur in nature.
Bacteria, viruses, and fungi which cause disease in
Microbial pesticides
pests.
Pesticide Management
Save
Terms in this set (304)
Produce oxygen for other organisms, prevent
shoreline erosion, lessen excess nutrients, stabilize
Roles of aquatic plants
the lake bottom, provide food and habitat for fish,
waterfowl and aquatic animals.
Harm the ecology of aquatic ecosystem, curtail or
prevent recreational water use, impact tastes or
Adverse effects of odors to drinking water, hamper water treatment
excessive plant growth operations, adversely affect aesthetics, resort trade,
and waterfront property values or produce toxins
that harm animals that drink water.
Rooted plants with most of growth above water,
Emergent aquatic plants spread by roots, can grow densely enough to
exclude recreational water use.
Grow primarily under water, pondweeds disperse
by roots and runners and seeds, usually not a
Submergent aquatic nuisance except for curlyleaf pondweed; plants with
plants whorled leaves disperse by wind and water
movements, may clutter shoreline and create
nuisance if not raked up when cut.
Free-floating aquatic Grow on water surface, windblown, difficult to
plants control due to drifting and layering.
Rooted floating-leaved Rooted rarely a nuisance.
aquatic plants
Grow on water surface, masses can accumulate, can
Free-floating algae
cause toxic compounds.
, Attach to rocks, weeds, or other anchoring objects;
Filamentous algae attached to bottom but don't have true roots, best
to leave alone.
Advantages of chemical Offer longer lasting control than mechanical
control of aquatic plants methods, may involve less physical labor and cost
and algae less, selective chemical treatment can be important.
Can lead to restrictions on water, if too much plant
Disadvantages of
material killed can lead to problems with oxygen
chemical control of
depletion and release of nutrients in water, and risk
aquatic plants and algae
to people and nontarget organisms.
Help maintain balanced communities by feeding on
Beneficial roles of WI fish
plants, fish, insects, provide food source, fishing for
populations
food and sport very popular.
To eliminate undesirable or competing fish, remove
exotic or other undesirable species, thin stunted fish
to bring fish population to balance, eliminate fish
Situations for fish control
from hatchery water supply to prevent potential
reservoir of disease causing organisms, treat fish
spawning sites to prevent overpopulation.
Adequate planning and management after
Importance of post- treatment needed, competition for food and space
treatment management decreased and fish stocked after treatment, fill void
within 3 years.
Reasons for mosquito When they are a nuisance.
control
Egg Elongate and 1/25 inch light in color and turn dark.
"Wiggler" that passes through 4 stages called
Larva
instars, has a head, thorax, and abdomen.
Comma-shaped "tumbler" transitional non-feeding
Pupae stage that lasts a few days, consists of
cephalothorax and abdomen.
Has a slender abdomen, one pair of narrow wings, 3
Adult pairs of long slender legs, and an elongated
proboscis.
, "Tree-hole mosquito" that breeds in old tires, cans,
barrels, and tree holes and stumps, lays eggs above
Aedes triseriatus
the water line, has several generations in a year, and
females feed during the day.
"Inland floodwater mosquito" whose larvae can be
found in roadside puddles, woodland pools,
shallow open contemporary pools, and river
bottoms, continually breeds during wet years,
Aedes vexans
survives winter and dry periods in the egg stage,
migrates 15 to 20 miles, lives 3-4 weeks, and eggs
can be dormant up to 5 years, feeds mostly at dusk
or after dawn.
Breeds in temporary or permanent pools of water
high in organic material, or artificial containers or
Culex pipiens ditches and sewage lagoons, lays eggs in rafts and
hatches quickly, and transmits two diseases: St. Louis
encephalitis and West Nile.
La Crosse Encephalitis Carried by Aedes triseriatus.
West Nile Virus (WNV) Carried by Culex pipiens.
Caused by roundworm, can be transmitted by
Dog Heartworm
Aedes vexans.
Any substance used to directly control pest
Pesticide populations or to prevent or reduce pest damage;
not all kill target pests.
Means to kill, and can refer to pests such as insects,
weeds, fungi, mice, or others; not all kill - some
"Cide"
repel, inhibit growth, or reduce capacity to
reproduce.
Organic pesticides Compounds that contain the element carbon.
Inorganic pesticides Derived from minerals that occur in nature.
Bacteria, viruses, and fungi which cause disease in
Microbial pesticides
pests.
