MASSACHUSETTS PESTICIDE STUDY EXAMS GUIDE
ANSWERS AND QUESTIONS SET A+
✔✔Crack-and-crevice application - ✔✔The application of small amounts of pesticide
into cracks and crevices in buildings such as along baseboards and in cabinets
✔✔cross-contamination - ✔✔When one pesticide unintentionally becomes mixed with
another
✔✔cross resistance - ✔✔The ability of a pest population that is resistant to one
pesticide to be resistant to other pesticides that have a similar mode of action
✔✔Danger - ✔✔The signal word associated with pesticide products classified as highly
toxic because they are corrosive or highly irritating to the skin and eyes
✔✔Danger-poison - ✔✔the signal word associated with pesticide products classified as
highly toxic based on their LD50 and/or LC50 values
✔✔Days to harvest - ✔✔Same as PREHARVEST INTERVAL.
✔✔Days to Slaughter - ✔✔Same as PRESLAUGHTER INTERVAL.
✔✔Decontaminate - ✔✔To remove or degrade a chemical residue from the skin or
surface
✔✔Defoaming agent - ✔✔An adjuvant used to reduce the foaming of a spray mixture
due to agitation
✔✔Defoliant - ✔✔a chemical that initiates the premature drop of leaves, often as an aid
in harvesting a crop
✔✔Degradation - ✔✔The process by which a chemical compound is broken down to
simpler compounds by the action of microorganisms, water, air, sunlight, or other
agents
, ✔✔Delayed effects - ✔✔illnesses or injuries that do not appear immediately (within 24
hours) after exposure to a pesticide or combination of pesticides
✔✔Deposit - ✔✔The presence of a pesticide on a treated surface after application
✔✔Dermal - ✔✔pertaining to the skin
✔✔Dermal Toxicity - ✔✔The ability of a pesticide to cause injury to a human or animal
when absorbed through the skin.
✔✔Dermatitis - ✔✔The inflammation,itching, irritation, or occurrences of a rash after
exposure to a chemical
✔✔Desiccant - ✔✔A pesticide that promotes loss of moisture from leaves or other plant
parts. A pesticide that removes water from arthropods or destroys the waxy covering
that protects them from water loss
✔✔Diagnosis - ✔✔The positive identification of a problem and its cause
✔✔Dicot - ✔✔A herbaceous plant which has two cotyledons (seed leaves) upon
germination
✔✔Diluent - ✔✔See CARRIiER
✔✔Directed-spray application - ✔✔an application that targets the precise location of
pests rather than a broader area, such as basal application to woody plants or crack
and crevice treatment in buildings
✔✔Disinfectant - ✔✔A chemical or other agent that kills or inactivates disease-
producing microorganisms in animals, seeds, or other plants parts. A chemical used to
clean or surface sterilize inanimate objects
✔✔dispersing agent - ✔✔An adjuvant that facilitates the mixing and suspension of a
pesticide formulation in water.
✔✔dose, dosage - ✔✔The quantity of pesticide applied to a given site or target. The
amount of pesticide to which a person or animal is exposed
✔✔Drift - ✔✔The airborne movement of a pesticide spray, dust, particle, or vapor
beyond the target area.
✔✔Drift control additives - ✔✔An adjuvant added to a spray mixture to reduce drift
ANSWERS AND QUESTIONS SET A+
✔✔Crack-and-crevice application - ✔✔The application of small amounts of pesticide
into cracks and crevices in buildings such as along baseboards and in cabinets
✔✔cross-contamination - ✔✔When one pesticide unintentionally becomes mixed with
another
✔✔cross resistance - ✔✔The ability of a pest population that is resistant to one
pesticide to be resistant to other pesticides that have a similar mode of action
✔✔Danger - ✔✔The signal word associated with pesticide products classified as highly
toxic because they are corrosive or highly irritating to the skin and eyes
✔✔Danger-poison - ✔✔the signal word associated with pesticide products classified as
highly toxic based on their LD50 and/or LC50 values
✔✔Days to harvest - ✔✔Same as PREHARVEST INTERVAL.
✔✔Days to Slaughter - ✔✔Same as PRESLAUGHTER INTERVAL.
✔✔Decontaminate - ✔✔To remove or degrade a chemical residue from the skin or
surface
✔✔Defoaming agent - ✔✔An adjuvant used to reduce the foaming of a spray mixture
due to agitation
✔✔Defoliant - ✔✔a chemical that initiates the premature drop of leaves, often as an aid
in harvesting a crop
✔✔Degradation - ✔✔The process by which a chemical compound is broken down to
simpler compounds by the action of microorganisms, water, air, sunlight, or other
agents
, ✔✔Delayed effects - ✔✔illnesses or injuries that do not appear immediately (within 24
hours) after exposure to a pesticide or combination of pesticides
✔✔Deposit - ✔✔The presence of a pesticide on a treated surface after application
✔✔Dermal - ✔✔pertaining to the skin
✔✔Dermal Toxicity - ✔✔The ability of a pesticide to cause injury to a human or animal
when absorbed through the skin.
✔✔Dermatitis - ✔✔The inflammation,itching, irritation, or occurrences of a rash after
exposure to a chemical
✔✔Desiccant - ✔✔A pesticide that promotes loss of moisture from leaves or other plant
parts. A pesticide that removes water from arthropods or destroys the waxy covering
that protects them from water loss
✔✔Diagnosis - ✔✔The positive identification of a problem and its cause
✔✔Dicot - ✔✔A herbaceous plant which has two cotyledons (seed leaves) upon
germination
✔✔Diluent - ✔✔See CARRIiER
✔✔Directed-spray application - ✔✔an application that targets the precise location of
pests rather than a broader area, such as basal application to woody plants or crack
and crevice treatment in buildings
✔✔Disinfectant - ✔✔A chemical or other agent that kills or inactivates disease-
producing microorganisms in animals, seeds, or other plants parts. A chemical used to
clean or surface sterilize inanimate objects
✔✔dispersing agent - ✔✔An adjuvant that facilitates the mixing and suspension of a
pesticide formulation in water.
✔✔dose, dosage - ✔✔The quantity of pesticide applied to a given site or target. The
amount of pesticide to which a person or animal is exposed
✔✔Drift - ✔✔The airborne movement of a pesticide spray, dust, particle, or vapor
beyond the target area.
✔✔Drift control additives - ✔✔An adjuvant added to a spray mixture to reduce drift
