NEW CORE IOWA DOA PESTICIDE APPLICATOR'S LICENSE PRACTICE
TEST QUESTIONS AND CORRECT ANSWERS 2026-2027!!
What is a disadvantage of using an ultra low volume
concentrate formulation?
• It is difficult to handle, transport, and store
• Specialized equipment is required
• The amount of visible residue on treated surfaces
• It tends to plug screens and nozzles - ANSWER • Specialized equipment is
required
What is the term for the degree or extent to which a
chemical or substance is poisonous?
• Exposure
• Hazard
• Persistence
• Toxicity - ANSWER • Toxicity
The risk of damage to nontarget plants from drift of
volatile pesticides is ______________.
• greater at high temperatures
• decreased at high temperatures
• dependent on droplet size
• about the same at all temperatures - ANSWER • greater at high temperatures
Who may use a Restricted Use Pesticide?
• A person approved by employer
• A certified pesticide applicator
• An experienced pesticide applicator
• Anyone with a legitimate need to use the product - ANSWER • A certified
pesticide applicator
What is the term for unwanted contact with
pesticides or pesticide residues?
• Exposure
• Hazard
• Tolerance
• Toxicity - ANSWER • Exposure
A pesticide label calls for a broadcast application
using 2 pints of product per acre. Your sprayer holds
375 gallons and is calibrated to apply 15 gallons of
spray mixture per acre. How much product is needed
,for each fill?
• 25 pints
• 30 pints
• 50 pints
• 75 pints - ANSWER • 25 pints
Which of the following is an emergency exemption
from registration that allows for the sale and use of a
pesticide for a non-registered purpose for a limited
time?
• Section 3
• Section 18
• Section 24(c)
• Section 25(b) - ANSWER • Section 24(c)
Which of the following statements about PPE is true?
• PPE eliminates exposure from pesticides
• Water resistant PPE protects against
concentrated pesticide products
• You may wear more PPE than the pesticide label
lists
• Eye protection should not be vented to prevent
pesticide exposure - ANSWER • You may wear more PPE than the pesticide label
lists
Why were the Iowa atrazine management rules put
in place?
• To minimize the tolerances of the pesticide
• To control hazardous waste from the cradle-to-
grave
• To keep the economic injury level below the economic threshold
• To minimize the pesticide's impact on ground and
surface water - ANSWER • To minimize the pesticide's impact on ground and
surface water
What type of pesticide moves from the site of
absorption in a treated plant or animal to other
tissues?
• Contact
• Residual
• Selective
• Systemic - ANSWER • Systemic
Which of the following describes a systemic effect to
a pesticide?
• A skin rash where the pesticide was in contact
, with your skin
• Nausea from spilling pesticides on your legs
• Developing a reaction to a pesticide that others
do not
• Eye irritation from rubbing your eye with
contaminated gloves - ANSWER • Nausea from spilling pesticides on your legs
What is the term for the minimum number of days
allowed between the pesticide application and
harvest?
• Agricultural use requirement
• Preharvest interval
• Prenotification interval
• Restricted entry interval - ANSWER • Preharvest interval
What is the term that describes the harmful effects
that occur from small, repeated exposures to
pesticides over a period of time?
• Acute toxicity
• Chronic toxicity
• Allergic effect
• Medical antidote - ANSWER • Chronic toxicity
According to the Iowa Bee Rule, how far away must
commercial applicators be from registered apiaries
when applying pesticides labeled as toxic to bees
between 8 a.m. and 6 p.m.?
• 0.5 mile
• 1 mile
• 2 miles
• 3 miles - ANSWER • 1 mile
Which of the following describes a 24(c) registration?
• A temporary request that does not require
supplemental labeling
• Allows a state to register additional uses for a
federally registered pesticide
• The use of non-registered pesticides for pest
control in emergency situations
• Non-registered pesticides only that are more
hazardous than currently registered products - ANSWER • Allows a state to
register additional uses for a
federally registered pesticide
Which statement about sensitive areas is true?
• Never spray a sensitive area to control a pest for any
TEST QUESTIONS AND CORRECT ANSWERS 2026-2027!!
What is a disadvantage of using an ultra low volume
concentrate formulation?
• It is difficult to handle, transport, and store
• Specialized equipment is required
• The amount of visible residue on treated surfaces
• It tends to plug screens and nozzles - ANSWER • Specialized equipment is
required
What is the term for the degree or extent to which a
chemical or substance is poisonous?
• Exposure
• Hazard
• Persistence
• Toxicity - ANSWER • Toxicity
The risk of damage to nontarget plants from drift of
volatile pesticides is ______________.
• greater at high temperatures
• decreased at high temperatures
• dependent on droplet size
• about the same at all temperatures - ANSWER • greater at high temperatures
Who may use a Restricted Use Pesticide?
• A person approved by employer
• A certified pesticide applicator
• An experienced pesticide applicator
• Anyone with a legitimate need to use the product - ANSWER • A certified
pesticide applicator
What is the term for unwanted contact with
pesticides or pesticide residues?
• Exposure
• Hazard
• Tolerance
• Toxicity - ANSWER • Exposure
A pesticide label calls for a broadcast application
using 2 pints of product per acre. Your sprayer holds
375 gallons and is calibrated to apply 15 gallons of
spray mixture per acre. How much product is needed
,for each fill?
• 25 pints
• 30 pints
• 50 pints
• 75 pints - ANSWER • 25 pints
Which of the following is an emergency exemption
from registration that allows for the sale and use of a
pesticide for a non-registered purpose for a limited
time?
• Section 3
• Section 18
• Section 24(c)
• Section 25(b) - ANSWER • Section 24(c)
Which of the following statements about PPE is true?
• PPE eliminates exposure from pesticides
• Water resistant PPE protects against
concentrated pesticide products
• You may wear more PPE than the pesticide label
lists
• Eye protection should not be vented to prevent
pesticide exposure - ANSWER • You may wear more PPE than the pesticide label
lists
Why were the Iowa atrazine management rules put
in place?
• To minimize the tolerances of the pesticide
• To control hazardous waste from the cradle-to-
grave
• To keep the economic injury level below the economic threshold
• To minimize the pesticide's impact on ground and
surface water - ANSWER • To minimize the pesticide's impact on ground and
surface water
What type of pesticide moves from the site of
absorption in a treated plant or animal to other
tissues?
• Contact
• Residual
• Selective
• Systemic - ANSWER • Systemic
Which of the following describes a systemic effect to
a pesticide?
• A skin rash where the pesticide was in contact
, with your skin
• Nausea from spilling pesticides on your legs
• Developing a reaction to a pesticide that others
do not
• Eye irritation from rubbing your eye with
contaminated gloves - ANSWER • Nausea from spilling pesticides on your legs
What is the term for the minimum number of days
allowed between the pesticide application and
harvest?
• Agricultural use requirement
• Preharvest interval
• Prenotification interval
• Restricted entry interval - ANSWER • Preharvest interval
What is the term that describes the harmful effects
that occur from small, repeated exposures to
pesticides over a period of time?
• Acute toxicity
• Chronic toxicity
• Allergic effect
• Medical antidote - ANSWER • Chronic toxicity
According to the Iowa Bee Rule, how far away must
commercial applicators be from registered apiaries
when applying pesticides labeled as toxic to bees
between 8 a.m. and 6 p.m.?
• 0.5 mile
• 1 mile
• 2 miles
• 3 miles - ANSWER • 1 mile
Which of the following describes a 24(c) registration?
• A temporary request that does not require
supplemental labeling
• Allows a state to register additional uses for a
federally registered pesticide
• The use of non-registered pesticides for pest
control in emergency situations
• Non-registered pesticides only that are more
hazardous than currently registered products - ANSWER • Allows a state to
register additional uses for a
federally registered pesticide
Which statement about sensitive areas is true?
• Never spray a sensitive area to control a pest for any
