Controlling Aquatic Pests Exam Prep

Controlling Aquatic Pests


Course Description

This course discusses managing pests in aquatic environments. It contains extensive plant identification, discussing common weed types and species. Other pests, such as insects or birds, are also covered. In addition, this course explains a variety of control methods, outlining how to use pesticides safely and the necessary first aid for any exposure. Finally, calibration of equipment is explained and example scenarios are explored.

After completing this course participants will be able to:

  • Explain the laws and regulations surrounding aquatic pesticide use.
  • Calculate area, rate, and amount of pesticides for aquatic use.
  • Discuss the risks involved with pesticide use and methods for both reducing risk and managing any exposures that should occur.

Chapter 1 – Controlling Aquatic Pests

Lesson 1 – Aquatic Weeds

  • Aquatic Weeds
    • Benefits of Aquatic Plants
    • Noxious Weeds
    • Problems Caused by Aquatic Weeds
  • Types of Aquatic Weeds
    • Algae
    • Emersed Weeds
    • Submersed Weeds
    • Free-Floating Weeds
  • Characteristics of Aquatic Weeds
    • Reproduction
      • Sexual Reproduction
      • Asexual Reproduction
      • Sexual and Asexual Reproduction
    • Competitive Ability
  • How Weeds are Introduced and Spread
    • People
    • Wind and Water
    • Animals
  • Conditions for Aquatic Weed Growth
    • Light
    • Water Clarity
    • Nutrients
    • Temperature
    • Water Chemistry
    • Stable Substrate
    • Absence of Grazers, Disease, Competition, or Enemies
    • Herbicide Tolerance

Lesson 2 – Identifying Aquatic Weeds Part 1

  • Identifying Aquatic Weeds
    • Sampling and Sending for ID
    • Scientific Names
    • Flowering Plants
    • Using Growth Habits and Life Cycles for Identification
  • Algae
    • Planktonic Algae
    • Filamentous Algae
    • Branched Algae
  • Emersed Aquatic Weeds
    • Alligator Weed
    • Arrowhead
    • Barnyard Grass
    • Bearded Sprangletop
    • Brazilian Peppertree
    • Bulrush
    • Burhead
    • Cattail
    • Common Reed
    • Dallisgrass
    • Ducksalad
    • Giant Reed
    • Hoary Cress
    • Smartweed
    • Nutsedge
    • Perennial Pepperweed
    • Purple Ammannia
    • Purple Loosestrife
    • Reed Canarygrass
    • Salt Cedar
    • Scouring Rush
    • Smallflower Umbrella Sedge
    • Smooth Cordgrass
    • Spikerush
    • Swamp Morning Glory
    • Water Smartweed
    • Water Grass
    • Water Hyssop
    • Water Primrose

Lesson 3 – Identifying Aquatic Weeds Part 2

  • Submersed Aquatic Weeds
    • Submersed, Rooted, without Floating Leaves
      • American Frogbit
      • Egeria
      • Common Elodea
      • Duck-lettuce
      • Eurasian Watermilfoil
      • Horned Pondweed
      • Hydrilla
      • Bladderwort
      • Naiad
      • Parrotfeather
      • Purple Fanwort
      • Pondweeds
      • Curlyleaf Pondweed
      • Leafy Pondweed
      • Richardson's Pondweed
      • Sago Pondweed
      • Small Pondweed
      • Watersheild
      • Widgeon Grass
    • Submersed, Rooted, with Floating Leaves
      • American Lotus
      • Floating Pennywort
      • White Water Buttercup
      • American Pondweed
      • Floating Leaf Pondweed
      • Large Leaf Pondweed
      • Variable Pondweed
      • Fragrant Waterlily
      • Mexican Waterlily
      • Spatterdock
    • Submersed, without Roots, without Floating Leaves
      • Coontail
  • Free-Floating Aquatic Weeds
    • Water Hyacinth
    • Water Lettuce
    • Duckweeds
    • Common Duckweed
    • Common Watermeal
    • Giant Duckweed
    • Mosquito Fern
    • Salvinia

Lesson 4 – Controlling Aquatic Weeds

  • Chemical Control
    • Advantages of Chemical Control
    • Disadvantages of Chemical Control
  • Properties of Herbicides
    • Absorption Characteristics
      • Contact Herbicides
      • Systemic Herbicides
    • Selectivity
      • Factors Influencing Selectivity
    • Physiological Processes Affected
  • Aquatic Herbicide Formulations
    • Adjuvants
  • Environmental Factors Affecting Herbicide Activity
    • Water Conditions
    • Water Movement
    • Water Characteristics
  • Mechanical Control
    • Manual Removal
    • Machine Removal
  • Cultural Control
    • Design
    • Nutrient Control
    • Water Level Manipulation
    • Nontoxic Dyes
    • Bottom Barriers
    • Aeration
  • Biological Control
    • Herbivorous Fish
    • Insects
    • Fowl
  • Integrated Pest Management
    • Establishing an IPM Program
    • Identify the Pest
    • Evaluate the Site
    • Understand Present and Future Uses of the Site
    • Select Management Methods
    • Evaluate the Control Efforts

Lesson 5 – Other Pests in Aquatic Environments

  • Invertebrate Pests
  • Insects
    • Mosquitoes
    • Mosquito-Transmitted Disease Organisms
    • Controlling Mosquitoes
      • Draining
      • Biological Control
    • Black Flies
    • Midges
    • Dobsonflies
    • Caddisflies
  • Crabs
    • Chinese Mitten Crab
  • Mollusks
    • Asiatic Clam
    • Asian Clam
    • Snails
  • Vertebrates
  • Fish
  • Amphibians
  • Mammals
    • Nutria
    • Beavers
    • Muskrats
    • Norway Rats
    • Pocket Gophers
    • Ground Squirrels
  • Birds
  • Safeguarding Endangered Species

Lesson 6 – Handling Pesticides Safely

  • Pesticide Labels and Associated Labeling
    • Trade, Brand, or Product Names
    • Ingredient Statement
    • Use Classification Statements
    • Type of Pesticide and Formulation
    • Net Contents
    • Registration and Establishment Numbers
    • Signal Words
    • Precautionary Statements
    • Directions for Use
    • Acceptable Deviations from Label Directions
    • Safety Data Sheets (SDSs)
  • How Pesticides Injure People
    • Toxicity and Hazard
  • Exposure
    • Dermal Exposure
    • Inhalation Exposure
    • Oral Exposure
    • Ocular Exposure
  • Acute Toxicity and Acute Effects
  • Chronicle Toxicity and Chronic Effects
    • Pesticide Poisoning Symptoms
  • First Aid Instructions
    • Dermal Exposure
    • Inhalation Exposure
    • Eye Exposure
    • Oral Exposure
  • Heat Stress
    • Avoiding Heat Stress
    • Signs and Symptoms of Heat Stress
    • First Aid for Heat Stress
  • Pesticide Impacts on the Environment
    • Mixing Pesticides
    • Application Equipment
    • Application Techniques
    • Protecting Nontarget Organisms
    • Avoiding Leaks and Spills
    • Handling Pesticide Fires
    • Disposing of Containers and Pesticide

Lesson 7 – Selecting and Calibrating Equipment

  • Selecting and Calibrating Equipment
    • Types of Equipment
    • Surface Spray Applications
    • Compressed Air Sprayers
    • Backpack Sprayers
    • Nozzles
    • Flowing Water Treatment
    • Slug Applications
    • Metered Flow
    • Bottom Applications
    • Granular Applications
  • Servicing and Maintaining Equipment
  • Calibrating Equipment
    • Why Calibration is Essential
      • Effective Pest Control
      • Human Health and Environmental Concerns
      • Preventing Waste of Resources
      • Complying with the Law
  • Calibration Methods for Liquid Applications
    • Amount per Acre
    • Metered Flow
    • PPM Dilutions and Percentage Solutions
    • Calibration Tools
  • Amount per Acre for Liquid Applications
    • Tank Capacity
    • Travel Speed for Watercraft
    • Flow Rate
    • Low-Pressure and Small Hand-Held Sprayers
    • Measured Release for High-Pressure Sprayers
    • Swath Width
  • Determining Amount of Herbicide to Use
    • Area Calculations
    • Example 1
    • Example 2
    • Example 3
    • Irregularly Shaped Bodies of Water
    • Example 4
    • Metered Flow Applications
    • Parts per Million Dilutions
    • Percentage Solutions
  • Calibration Methods for Granular Applications

Lesson 8 – Herbicide Technology and Application Considerations

  • Absorption Characteristics
  • Plant Processes and Herbicidal Activity
  • Selectivity
  • Environmental Factors
  • Water Movement and Chemistry
  • Effects on Fish and Other Organisms
  • Pesticide Fate

Lesson 9 – Aquatic Herbicide Application Equipment and Techniques

  • Application Methods
  • Equipment Selection
  • Spray Tank Applications
  • Nozzles
  • Direct Metering
  • Granular Formulations

Lesson 10 – Fish Management

  • Piscicides
  • Determining Fish Age
  • Causes of Stunting
  • Fish Management Using Piscicides
  • Piscicide Calculations
  • Drip System Calculation and Calibration

Lesson 11 – Public Relations and Risk Communications

  • Data Requirements for Pesticides
  • Risk Communication
  • Maintaining Public Confidence
  • Common Questions

Final Assessment


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