WASHIGTON PESTICIDE LAWS AND SAFETY EXAM
2026-2027 ACTUAL NEWEST EXAM QUESTIONS
AND CORRECT DETAILED ANSWERS LATEST
VERSION (100% VERIFIED ANSWERS) ALREADY
GRADED A+
A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure (T/F) - ANSWERS-True
The use of temperature or humidity manipulation is a ________ control method
for insects - ANSWERS-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 - ANSWERS-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 - ANSWERS-d. easily clogs nozzles and screens
EPA and WSDA are the only federal and state agencies that regulate pesticides
(T/F) - ANSWERS-False
Two or more pesticides that cannot mixed together effectively are said to be
______. - ANSWERS-Incompatible
All formations with the same active ingredient carry the same signal word (T/F) -
ANSWERS-False
The skull and crossbones symbol must appear on every pesticide label (T/F) -
ANSWERS-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 - ANSWERS-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 - ANSWERS-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 - ANSWERS-d. 46 mg/kg
Pesticide-contaminated surface water can contaminate groundwater (T/F) -
ANSWERS-True
Pesticide records are useful only to applicators in case they have problems with
effectiveness (T/F) - ANSWERS-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) - ANSWERS-
True
Dealers must keep records for 7 years on the sale of general use agricultural
pesticides (T/F) - ANSWERS-True
, One of the earliest uses of chemicals as pesticides was the burning of sulfur (T/F)
- ANSWERS-True
When the pest reaches the _____, pest management procedures need to be
applied to prevent the pest from economically damaging populations. -
ANSWERS-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
c. releasing a parasitic wasp
d. washing of aphids with a stream of water
e. removing a rhododendron with a root disease - ANSWERS-c. releasing a
parasitic wasp
Which of the following is a cultural control method:
a. fertilization
b. planting time
c. pruning
d. crop rotation
e. all of the above - ANSWERS-e. all of the above
The first step in a pest management program is to identify the pest (T/F) -
ANSWERS-True
2026-2027 ACTUAL NEWEST EXAM QUESTIONS
AND CORRECT DETAILED ANSWERS LATEST
VERSION (100% VERIFIED ANSWERS) ALREADY
GRADED A+
A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure (T/F) - ANSWERS-True
The use of temperature or humidity manipulation is a ________ control method
for insects - ANSWERS-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 - ANSWERS-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 - ANSWERS-d. easily clogs nozzles and screens
EPA and WSDA are the only federal and state agencies that regulate pesticides
(T/F) - ANSWERS-False
Two or more pesticides that cannot mixed together effectively are said to be
______. - ANSWERS-Incompatible
All formations with the same active ingredient carry the same signal word (T/F) -
ANSWERS-False
The skull and crossbones symbol must appear on every pesticide label (T/F) -
ANSWERS-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 - ANSWERS-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 - ANSWERS-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 - ANSWERS-d. 46 mg/kg
Pesticide-contaminated surface water can contaminate groundwater (T/F) -
ANSWERS-True
Pesticide records are useful only to applicators in case they have problems with
effectiveness (T/F) - ANSWERS-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) - ANSWERS-
True
Dealers must keep records for 7 years on the sale of general use agricultural
pesticides (T/F) - ANSWERS-True
, One of the earliest uses of chemicals as pesticides was the burning of sulfur (T/F)
- ANSWERS-True
When the pest reaches the _____, pest management procedures need to be
applied to prevent the pest from economically damaging populations. -
ANSWERS-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
c. releasing a parasitic wasp
d. washing of aphids with a stream of water
e. removing a rhododendron with a root disease - ANSWERS-c. releasing a
parasitic wasp
Which of the following is a cultural control method:
a. fertilization
b. planting time
c. pruning
d. crop rotation
e. all of the above - ANSWERS-e. all of the above
The first step in a pest management program is to identify the pest (T/F) -
ANSWERS-True
