QAC TEST BANK UPDATED COMPLETE
QUESTIONS AND CORRECT SOLUTIONS
●● Defoliate plants
Answer: Are chemicals used to remove plant leaves. (Ex: used as harvest
aids in cotton production)
●● Adjuvants
Answer: Are chemicals that improve pesticide performance. (Ex:
surfactants, stickers, buffers, and drift control agents)
●● Carbamates
Answer: Family of insecticides are nerve toxins that can impact humans,
non-target animals and pest species. They are highly toxic but are not
environmentally persistent and their impacts on nerve function are
reversible.
●● Neonicotinoids
Answer: A widely used group of insecticides. Neonics are nerve toxins
that mimic the toxic activity of nicotine. They have been linked with the
deaths of bees, especially when they act synergistically with some
fungicides.
●● Organochlorines
,Answer: Group of insecticide known as chlorinated hydrocarbons. Most
no longer legal to use in the United States due to their environmental
persistence and overall risk to people in the environment DDT and
endosulfan are examples of organochlorines.
●● Organophosphates
Answer: Group of insecticide that are highly toxic nerve agents similar
to carbamates unlike the carbamates their damage to nerve function is
irreversible.
●● Phenoxy herbicides
Answer: Family of herbicide. They are broadleaf-specific. they have
little to no impact on grass species. Examples include 2,4-D and MCPA.
●● Synthetic pyrethroids
Answer: Family of insecticides that are synthetic copies of pyrethrum a
natural insecticide extracted from chrysanthemums they are less toxic to
people and most animals species than are the organophosphates and
carbamates. Environmental monitoring has revealed that synthetic
pyrethroid residue are sometimes found in California waterways.
●● Inert ingredients
Answer: All materials in the pesticide formulation other than the active
ingredient. Some may be toxic or hazardous to people. (Ex: water,
solvents, and surfactants)
, ●● Wettable Powders (WP)
Answer: These dry products are mixed with water, but are not entirely
soluble. They require agitation to keep them in solution. They can also
be abrasive to spray equipment.
●● Emulsifiable Concentrate (EC)
Answer: Usually contains an oil-soluble liquid active ingredient, one or
more petroleum based solvents, and a mixing agent which allows it to be
mixed with water to form an emulsion. Because they are easily absorbed
through skin they can be more hazardous to applicators than other
formulation types.
●● Soluble Powders (SP)
Answer: May look like Wettable Powders but they dissolve and form
true solutions when dilute with water. Less visible than Wettable
Powders after drying, Frequent agitation is not required.
●● Dry Flowable (DF)
Answer: - Active ingredient is prepared as dry, granular-
sized particles.
- Mixed with water, they break into fine particles
and form a suspension for application.
QUESTIONS AND CORRECT SOLUTIONS
●● Defoliate plants
Answer: Are chemicals used to remove plant leaves. (Ex: used as harvest
aids in cotton production)
●● Adjuvants
Answer: Are chemicals that improve pesticide performance. (Ex:
surfactants, stickers, buffers, and drift control agents)
●● Carbamates
Answer: Family of insecticides are nerve toxins that can impact humans,
non-target animals and pest species. They are highly toxic but are not
environmentally persistent and their impacts on nerve function are
reversible.
●● Neonicotinoids
Answer: A widely used group of insecticides. Neonics are nerve toxins
that mimic the toxic activity of nicotine. They have been linked with the
deaths of bees, especially when they act synergistically with some
fungicides.
●● Organochlorines
,Answer: Group of insecticide known as chlorinated hydrocarbons. Most
no longer legal to use in the United States due to their environmental
persistence and overall risk to people in the environment DDT and
endosulfan are examples of organochlorines.
●● Organophosphates
Answer: Group of insecticide that are highly toxic nerve agents similar
to carbamates unlike the carbamates their damage to nerve function is
irreversible.
●● Phenoxy herbicides
Answer: Family of herbicide. They are broadleaf-specific. they have
little to no impact on grass species. Examples include 2,4-D and MCPA.
●● Synthetic pyrethroids
Answer: Family of insecticides that are synthetic copies of pyrethrum a
natural insecticide extracted from chrysanthemums they are less toxic to
people and most animals species than are the organophosphates and
carbamates. Environmental monitoring has revealed that synthetic
pyrethroid residue are sometimes found in California waterways.
●● Inert ingredients
Answer: All materials in the pesticide formulation other than the active
ingredient. Some may be toxic or hazardous to people. (Ex: water,
solvents, and surfactants)
, ●● Wettable Powders (WP)
Answer: These dry products are mixed with water, but are not entirely
soluble. They require agitation to keep them in solution. They can also
be abrasive to spray equipment.
●● Emulsifiable Concentrate (EC)
Answer: Usually contains an oil-soluble liquid active ingredient, one or
more petroleum based solvents, and a mixing agent which allows it to be
mixed with water to form an emulsion. Because they are easily absorbed
through skin they can be more hazardous to applicators than other
formulation types.
●● Soluble Powders (SP)
Answer: May look like Wettable Powders but they dissolve and form
true solutions when dilute with water. Less visible than Wettable
Powders after drying, Frequent agitation is not required.
●● Dry Flowable (DF)
Answer: - Active ingredient is prepared as dry, granular-
sized particles.
- Mixed with water, they break into fine particles
and form a suspension for application.
