Massachusetts Pesticide License Exam 2023 with complete
solution
absorption
the movement of a chemical into plants, animals (including humans), microorganisms or
soil
Acaricide
a pesticide used to control mites and ticks. a Miticide is a type of acaricide
Acidic
having a ph less than 7
Acidifiers = Buffers
adjuvants used to retard chemical degradation of pesticides in the spray tank by
lowering the pH of alkaline water used as a diluent
Action Threshold
a predetermined level of pest infestation or damage at which some type of pest
management action must be taken
Activated Charcoal
A finely ground charcoal that adsorbs chemicals.
Active Ingredient (AI)
The chemical or chemicals in a product responsible for pesticidal activity.
Acute effect
a symptom, illness, or injury that occurs shortly after the exposure to a pesticide
Acute Exposure
An exposure to a single dose of pesticide
Acute Rodenticide
a pesticide that is capable of killing a rodent after a single feeding
Acute Toxicity
The ability of a pesticide to cause illness after a single exposure. LD50 and LC50 are
common indicators of the degree of acute toxicity
Adjuvant (Additive)
a substance added to a pesticide to improve its effectiveness or safety
Adsorption
the process whereby chemicals are bound to a surface by physical or chemical
attraction
Adulterated Pesticide
A pesticide that does not conform to the specified standard or quality as documented on
its label or labeling
Aerosol
a liquid formulation that produces a mist or fod when applied from a container in which it
is held under pressure or from a fod-generating machine
Agitation
The process of stirring or mixing the contents of a spray tank
Air-blast sprayer
A type of pesticide application equipment that uses a large volume of air moving at high
speed to break up and disperse spray droplets from the nozzles
, Algae
relatively simple plants that are photosynthetic and contain chlorophyll
Algaecide (algicide)
a pesticide used to kill or inhibit algae
Alkaline
having a pH greater than 7, als
Allergic Effects
a hypersensitivity to a specific substance which is not due to the substance's toxicity
annual
a plant that completes its life cycle in one year
antidote
a practical treatment used to counteract the effects of pesticide poisoning
Antifouling Paint
a paint containing a pesticide (ex: Copper) that prevents aquatic organisms from
attaching to underwater structures (such as boat hulls, crab pots and water intake
pipes)
Antisiphoning Device
a mechanism that prevents back flow of a pesticide mix from the spray tank into a water
source
application rate
the amount of pesticide applied to a known area (such as an acre or 1,000 square feet )
volume or animal
Aquifer
a geological formation (ex: sand, gravel, bed rock), from which groundwater can be
drawn
Arachnid
a wingless arthropod with two body regions and four pairs of jointed legs (spiders, ticks,
mites)
Arthropod
An invertebrate animal characterized by jointed body and limbs usually a hard body
covering that is molted at intervals. Insects, arachnids, millipedes and centipedes are
arthropods
Atropine (Atropine Sulfate)
An antidote used to treat organophosphate and carbamate poisoning.
attractant
a substance or device to lure insects or other pests to a trap or poison bait
avicide
a pesticide used to kill or repel birds
Back-siphoning
the movement of a pesticide mixture from a spray tank through the filling hose into the
water source
Bacteria
a single-celled organisms; some causes diseases in plants and animals
Bactericide
a pesticide used to control bacteria
bait
solution
absorption
the movement of a chemical into plants, animals (including humans), microorganisms or
soil
Acaricide
a pesticide used to control mites and ticks. a Miticide is a type of acaricide
Acidic
having a ph less than 7
Acidifiers = Buffers
adjuvants used to retard chemical degradation of pesticides in the spray tank by
lowering the pH of alkaline water used as a diluent
Action Threshold
a predetermined level of pest infestation or damage at which some type of pest
management action must be taken
Activated Charcoal
A finely ground charcoal that adsorbs chemicals.
Active Ingredient (AI)
The chemical or chemicals in a product responsible for pesticidal activity.
Acute effect
a symptom, illness, or injury that occurs shortly after the exposure to a pesticide
Acute Exposure
An exposure to a single dose of pesticide
Acute Rodenticide
a pesticide that is capable of killing a rodent after a single feeding
Acute Toxicity
The ability of a pesticide to cause illness after a single exposure. LD50 and LC50 are
common indicators of the degree of acute toxicity
Adjuvant (Additive)
a substance added to a pesticide to improve its effectiveness or safety
Adsorption
the process whereby chemicals are bound to a surface by physical or chemical
attraction
Adulterated Pesticide
A pesticide that does not conform to the specified standard or quality as documented on
its label or labeling
Aerosol
a liquid formulation that produces a mist or fod when applied from a container in which it
is held under pressure or from a fod-generating machine
Agitation
The process of stirring or mixing the contents of a spray tank
Air-blast sprayer
A type of pesticide application equipment that uses a large volume of air moving at high
speed to break up and disperse spray droplets from the nozzles
, Algae
relatively simple plants that are photosynthetic and contain chlorophyll
Algaecide (algicide)
a pesticide used to kill or inhibit algae
Alkaline
having a pH greater than 7, als
Allergic Effects
a hypersensitivity to a specific substance which is not due to the substance's toxicity
annual
a plant that completes its life cycle in one year
antidote
a practical treatment used to counteract the effects of pesticide poisoning
Antifouling Paint
a paint containing a pesticide (ex: Copper) that prevents aquatic organisms from
attaching to underwater structures (such as boat hulls, crab pots and water intake
pipes)
Antisiphoning Device
a mechanism that prevents back flow of a pesticide mix from the spray tank into a water
source
application rate
the amount of pesticide applied to a known area (such as an acre or 1,000 square feet )
volume or animal
Aquifer
a geological formation (ex: sand, gravel, bed rock), from which groundwater can be
drawn
Arachnid
a wingless arthropod with two body regions and four pairs of jointed legs (spiders, ticks,
mites)
Arthropod
An invertebrate animal characterized by jointed body and limbs usually a hard body
covering that is molted at intervals. Insects, arachnids, millipedes and centipedes are
arthropods
Atropine (Atropine Sulfate)
An antidote used to treat organophosphate and carbamate poisoning.
attractant
a substance or device to lure insects or other pests to a trap or poison bait
avicide
a pesticide used to kill or repel birds
Back-siphoning
the movement of a pesticide mixture from a spray tank through the filling hose into the
water source
Bacteria
a single-celled organisms; some causes diseases in plants and animals
Bactericide
a pesticide used to control bacteria
bait
