Washington Pesticide Laws & Safety
Practice Exam 2026/2027 | Complete
Study Guide
A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure. (True or False) - correct answer-True
The use of temperature or humidity manipulation is a ____________ control
method for insects. - correct answer-physical
Drift problems can be reduced by __________ - correct answer-placing a boom as
close to the target as possible
Which is a concern when handling an emulsifiable concentrate pesticide?
a. visible plant residues
b. may be easily absorbed through human and animal skin
c. easily clogs nozzles and screens - correct answer-may be easily absorbed
through human and animal skin
EPA and WSDA are the only federal and state agencies that regulate pesticides.
(True or False) - correct answer-false
,Two or more pesticides which cannot be mixed together effectively are said to be
____________? - correct answer-Incompatible
All formulations with the same active ingredient carry the same signal word. (True
or False) - correct answer-False
The skull and crossbones symbol must appear on every pesticide label. - correct
answer-False
The best way to dispose of a regulated pesticide is to _____________ - correct
answer-use it as directed on the label
To minimize drift when applying an herbicide, the best type of nozzle to use
is___________ - correct answer-a low pressure, flat fan
Which LD50 is representative of a highly toxic pesticide? - correct answer-
46mg/kg
Pesticide-contaminated surface water contaminate groundwater - correct
answer-true
Pesticide records are useful to applicators in case they have problems with
effectiveness. - correct answer-true
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. - correct answer-true
, Dealers must keep records for 7 years on the sale of general use agricultural
pesticides. - correct answer-true
One of the earliest uses of chemicals as pesticides was t6he burning of sulfur. -
correct answer-true
When the pest reaches the ___________, pest management procedures need to
be applied to prevent the pest from reaching the economically damaging
populations. - correct 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 from eating fruit
c. releasing a parasitic wasp to control carrot rust fly - correct answer-releasing a
parasitic wasp to control carrot rust fly
Which of the following is a cultural control method?
a. pesticide application
b. planting time
c. releasing predators - correct answer-planting time
The first step in a pest management program should be to identify the pest. -
correct answer-true
Practice Exam 2026/2027 | Complete
Study Guide
A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure. (True or False) - correct answer-True
The use of temperature or humidity manipulation is a ____________ control
method for insects. - correct answer-physical
Drift problems can be reduced by __________ - correct answer-placing a boom as
close to the target as possible
Which is a concern when handling an emulsifiable concentrate pesticide?
a. visible plant residues
b. may be easily absorbed through human and animal skin
c. easily clogs nozzles and screens - correct answer-may be easily absorbed
through human and animal skin
EPA and WSDA are the only federal and state agencies that regulate pesticides.
(True or False) - correct answer-false
,Two or more pesticides which cannot be mixed together effectively are said to be
____________? - correct answer-Incompatible
All formulations with the same active ingredient carry the same signal word. (True
or False) - correct answer-False
The skull and crossbones symbol must appear on every pesticide label. - correct
answer-False
The best way to dispose of a regulated pesticide is to _____________ - correct
answer-use it as directed on the label
To minimize drift when applying an herbicide, the best type of nozzle to use
is___________ - correct answer-a low pressure, flat fan
Which LD50 is representative of a highly toxic pesticide? - correct answer-
46mg/kg
Pesticide-contaminated surface water contaminate groundwater - correct
answer-true
Pesticide records are useful to applicators in case they have problems with
effectiveness. - correct answer-true
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. - correct answer-true
, Dealers must keep records for 7 years on the sale of general use agricultural
pesticides. - correct answer-true
One of the earliest uses of chemicals as pesticides was t6he burning of sulfur. -
correct answer-true
When the pest reaches the ___________, pest management procedures need to
be applied to prevent the pest from reaching the economically damaging
populations. - correct 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 from eating fruit
c. releasing a parasitic wasp to control carrot rust fly - correct answer-releasing a
parasitic wasp to control carrot rust fly
Which of the following is a cultural control method?
a. pesticide application
b. planting time
c. releasing predators - correct answer-planting time
The first step in a pest management program should be to identify the pest. -
correct answer-true
