WASHINGTON PESTICIDE LAWS AND SAFETY
TEST 213 CERTIFICATION TEST PAPER 2026
COMPLETE SOLUTIONS GRADED A PLUS
◉ The use of temperature or humidity manipulation is a ________
control method for insects
Answer: Physical
◉ Drift problems can be reduced by:
a. using lower pressure, smaller nozzle orifices
b. applying in very calm, stable air conditions
c. spraying upwind of a sensitive area
d. placing bloom as close to target as possible
Answer: d. placing a boom as close to the target as possible
◉ Which is not a concern handling a emulsifiable concentrate
pesticide:
a. high phytotoxicity
b. may be easily absorbed through human and animal skin
c. flammability
d. easily clogs nozzles and screens
Answer: d. easily clogs nozzles and screens
,◉ EPA and WSDA are the only federal and state agencies that
regulate pesticides (T/F)
Answer: False
◉ Two or more pesticides that cannot mixed together effectively are
said to be ______.
Answer: Incompatible
◉ All formations with the same active ingredient carry the same
signal word (T/F)
Answer: False
◉ The skull and crossbones symbol must appear on every pesticide
label (T/F)
Answer: False
◉ The best way to dispose of a registered pesticide is to:
a. pour it into the sewer system
b. dump it in a vacant area
c. use it as direct on the label
d. ship it to the EPA
Answer: c. use it as direct on the label
,◉ To minimize the drift when applying a herbicide, the best type of
nozzle to use is:
a. a low pressure, flat fan
b. off center
c. a high pressure cone
d. makes no difference
Answer: a. a low pressure, flat fan
◉ Which LD50 is a representative of a highly toxic pesticide:
a. 640 mg/kg
b. 5,800 mg/kg
c. 12,840 mg/kg
d. 46 mg/kg
Answer: d. 46 mg/kg
◉ Pesticide-contaminated surface water can contaminate
groundwater (T/F)
Answer: True
◉ Pesticide records are useful only to applicators in case they have
problems with effectiveness (T/F)
, Answer: False
◉ If an applicator had two major label violations and was cited by
the WSDA, they could face a maximum fine of $15,000 and lose their
liscence (T/F)
Answer: True
◉ Dealers must keep records for 7 years on the sale of general use
agricultural pesticides (T/F)
Answer: True
◉ One of the earliest uses of chemicals as pesticides was the burning
of sulfur (T/F)
Answer: True
◉ When the pest reaches the _____, pest management procedures
need to be applied to prevent the pest from economically damaging
populations.
Answer: Economic threshold
◉ Which of the following is not considered a mechanical control
method:
a. fencing a crop to prevent deer entry
b. netting blueberry bushes to keep birds away
TEST 213 CERTIFICATION TEST PAPER 2026
COMPLETE SOLUTIONS GRADED A PLUS
◉ The use of temperature or humidity manipulation is a ________
control method for insects
Answer: Physical
◉ Drift problems can be reduced by:
a. using lower pressure, smaller nozzle orifices
b. applying in very calm, stable air conditions
c. spraying upwind of a sensitive area
d. placing bloom as close to target as possible
Answer: d. placing a boom as close to the target as possible
◉ Which is not a concern handling a emulsifiable concentrate
pesticide:
a. high phytotoxicity
b. may be easily absorbed through human and animal skin
c. flammability
d. easily clogs nozzles and screens
Answer: d. easily clogs nozzles and screens
,◉ EPA and WSDA are the only federal and state agencies that
regulate pesticides (T/F)
Answer: False
◉ Two or more pesticides that cannot mixed together effectively are
said to be ______.
Answer: Incompatible
◉ All formations with the same active ingredient carry the same
signal word (T/F)
Answer: False
◉ The skull and crossbones symbol must appear on every pesticide
label (T/F)
Answer: False
◉ The best way to dispose of a registered pesticide is to:
a. pour it into the sewer system
b. dump it in a vacant area
c. use it as direct on the label
d. ship it to the EPA
Answer: c. use it as direct on the label
,◉ To minimize the drift when applying a herbicide, the best type of
nozzle to use is:
a. a low pressure, flat fan
b. off center
c. a high pressure cone
d. makes no difference
Answer: a. a low pressure, flat fan
◉ Which LD50 is a representative of a highly toxic pesticide:
a. 640 mg/kg
b. 5,800 mg/kg
c. 12,840 mg/kg
d. 46 mg/kg
Answer: d. 46 mg/kg
◉ Pesticide-contaminated surface water can contaminate
groundwater (T/F)
Answer: True
◉ Pesticide records are useful only to applicators in case they have
problems with effectiveness (T/F)
, Answer: False
◉ If an applicator had two major label violations and was cited by
the WSDA, they could face a maximum fine of $15,000 and lose their
liscence (T/F)
Answer: True
◉ Dealers must keep records for 7 years on the sale of general use
agricultural pesticides (T/F)
Answer: True
◉ One of the earliest uses of chemicals as pesticides was the burning
of sulfur (T/F)
Answer: True
◉ When the pest reaches the _____, pest management procedures
need to be applied to prevent the pest from economically damaging
populations.
Answer: Economic threshold
◉ Which of the following is not considered a mechanical control
method:
a. fencing a crop to prevent deer entry
b. netting blueberry bushes to keep birds away
