Washington Pesticide Laws and Safety Exam Questions And
Answers Latest Update
A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure
(T/F) - ANSWER True
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 a boom as close to the target as possible
Which is not a concern handling an 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 most appropriate method of disposing 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
The drift when applying a herbicide can be reduced by using which of the following
types of nozzles:
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 be
fined up to $15,000 and lose their liscence (T/F) - ANSWER True
Dealers must maintain 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 does NOT represent mechanical control:
a. fencing a crop to exclude deer
b. netting blueberry bushes to exclude birds
c. releasing parasitic wasp
d. washing aphids with a stream of water
e. removing a rhododendron with a root disease - ANSWER 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 - ANSWER e. all of the above
Answers Latest Update
A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure
(T/F) - ANSWER True
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 a boom as close to the target as possible
Which is not a concern handling an 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 most appropriate method of disposing 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
The drift when applying a herbicide can be reduced by using which of the following
types of nozzles:
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 be
fined up to $15,000 and lose their liscence (T/F) - ANSWER True
Dealers must maintain 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 does NOT represent mechanical control:
a. fencing a crop to exclude deer
b. netting blueberry bushes to exclude birds
c. releasing parasitic wasp
d. washing aphids with a stream of water
e. removing a rhododendron with a root disease - ANSWER 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 - ANSWER e. all of the above
