WASHINGTON PESTICIDE LAWS AND SAFETY
TEST 213 COMPETENCY REVIEW 2026 MOCK
TEST COMPLETE KEY INSIGHTS
◉ The use of temperature or humidity manipulation is a __________
control method for insects.
Answer: Physical
◉ Drift problems can be reduced by:
Answer: Placing a boom as close to the target as possible.
◉ Which is a concern when handling an emulsifiable concentrate
pesticide?
Answer: It may be easily absorbed through human and animal skin.
◉ T/F: EPA and WSDA are the only federal and state agencies that
regulate pesticides.
Answer: False
◉ Two or more pesticides which cannot be mixed together
effectively are said to be ______________.
Answer: Incompatible
,◉ T/F: All formulations with the same active ingredient carry the
same signal word.
Answer: False
◉ T/F: The skull and crossbones symbol must appear on every
pesticide label.
Answer: False
◉ The best way to dispose of a registered pesticide is to:
Answer: Use it as directed on the label.
◉ To minimize drift when applying an herbicide, the best type of
nozzle to use is:
Answer: A low pressure, flat fan.
◉ Which LD50 is representative of a highly toxic pesticide?
Answer: 46 mg/kg ( rather than 640mg/kg or 5,800mg/kg)
◉ T/F: Pesticide-contaminated surface water can contaminate
groundwater.
Answer: True
, ◉ T/F: Pesticide records are useful to applicators in case they have
problems with effectiveness.
Answer: True
◉ T/F: If an applicator had two major label violations and was cited
by WSDA, they could face a maximum fine of $15,000 and lose their
license.
Answer: True
◉ Dealers must keep records for 7 years in the sale of general use
agricultural pesticides.
Answer: True
◉ T/F: One of the earliest uses of chemicals as pesticides was the
burning of sulfur.
Answer: True
◉ When the pest reaches the _________, pest management procedures
need to be applied to prevent the pest from reaching the
economically damaging populations.
Answer: Economic threshold
◉ Which of the following is not considered a mechanical control
method?
TEST 213 COMPETENCY REVIEW 2026 MOCK
TEST COMPLETE KEY INSIGHTS
◉ The use of temperature or humidity manipulation is a __________
control method for insects.
Answer: Physical
◉ Drift problems can be reduced by:
Answer: Placing a boom as close to the target as possible.
◉ Which is a concern when handling an emulsifiable concentrate
pesticide?
Answer: It may be easily absorbed through human and animal skin.
◉ T/F: EPA and WSDA are the only federal and state agencies that
regulate pesticides.
Answer: False
◉ Two or more pesticides which cannot be mixed together
effectively are said to be ______________.
Answer: Incompatible
,◉ T/F: All formulations with the same active ingredient carry the
same signal word.
Answer: False
◉ T/F: The skull and crossbones symbol must appear on every
pesticide label.
Answer: False
◉ The best way to dispose of a registered pesticide is to:
Answer: Use it as directed on the label.
◉ To minimize drift when applying an herbicide, the best type of
nozzle to use is:
Answer: A low pressure, flat fan.
◉ Which LD50 is representative of a highly toxic pesticide?
Answer: 46 mg/kg ( rather than 640mg/kg or 5,800mg/kg)
◉ T/F: Pesticide-contaminated surface water can contaminate
groundwater.
Answer: True
, ◉ T/F: Pesticide records are useful to applicators in case they have
problems with effectiveness.
Answer: True
◉ T/F: If an applicator had two major label violations and was cited
by WSDA, they could face a maximum fine of $15,000 and lose their
license.
Answer: True
◉ Dealers must keep records for 7 years in the sale of general use
agricultural pesticides.
Answer: True
◉ T/F: One of the earliest uses of chemicals as pesticides was the
burning of sulfur.
Answer: True
◉ When the pest reaches the _________, pest management procedures
need to be applied to prevent the pest from reaching the
economically damaging populations.
Answer: Economic threshold
◉ Which of the following is not considered a mechanical control
method?
