IOWA PESTICIDE APPLICATOR COMPREHENSIVE
2026/2027 EXAM LATEST QUESTIONS AND SOLUTIONS
GUARANTEE A+
✔✔What is the term for the min number of days allowed between the pesticide
application and harvest?
A. preharvest interval
B. Prenotification interval
C. Restricted entry interval
D. Agricultural use requirement - ✔✔A. Pre harvest interval
✔✔Which one of the following statements is false
A. if a wire is close to trees it is safer to fly under the wire and then pull up and go over
the trees than it is to enter the field and then go
B. Even though you may be over the target area you must not disburse materials when
dropping in or pulling out of the field
C. It is quite acceptable to turn around over residences, farm buildings livestock
watering places, ponds, and reservations
D. None of the above statements are false - ✔✔C. It is quite acceptable to turn around
over residences, farm buildings and livestock water placings, ponds and reservations
✔✔A self-contained unit with its own hopper used by helicopters to spread dry material
is called a
A. Microfoil spreader
B. Ram air Spreader
C. Forced air dispersal system
D. Centrifugal Spreader - ✔✔Centrifugal Spreader
✔✔the chemical in a pesticide formulation that actually controls the pest is referred to
as ___
A. Adjuvant
B. Inert ingredient
C. Active Ingredient
D. Residual - ✔✔C. Active Ingredient
✔✔Rinsate may be
A. Sprayed over labeled crop or site
B. Transferred to a rinsate holding tank and used as makeup water
C. Either A or B
, D. Neither A or B - ✔✔C. Either A or B
✔✔Leafhoppers damage plants by
A. Drilling small holes in stems
B. Sucking sap and causing leaves to turn yellow
C. Skeletonizing leaves
D. None of the above - ✔✔Sucking sap and causing leaves to turn yellow
✔✔Which of the following should be used to prevent the contamination of aquatic
organisms
A. Spray when temps are at the highest point of the day
B. Choose long residual pesticides
C. Use chemicals that tightly absorb to the soil particles
D. Operate the sprayer so that t produces a very fine spray - ✔✔C. Use chemicals that
tightly absorb to the soil particles
✔✔Contamination of groundwater can be minimized by using pesticides that are
A. highly toxic
B. low in water solubility
C. Loosely absorbed to the soil
D. Persistant - ✔✔C. low in water solubility
✔✔Herbicide runoff from treated fields can be reduced by
A. Avoiding back siphoning
B. Installing grass buffer strips
C. Reducing Crop residue on soil surface
D. Spraying in the early morning and evening - ✔✔B. Installing grass buffer strips
✔✔You should always handle insecticide using good, clean ___ rubber gloves
A. Unlined
B. Lined - ✔✔A. Unlined
✔✔Herbicide injury symptoms on soybean plants that include stunting, leaf yellowing
and red veins on the underside of the leaf are characteristic
A. Microtubule inhibitors
B. ACCase inhibitors
C. Photosystem inhibitors
D. ALS inhibitors - ✔✔D. ALS inhibitors
2026/2027 EXAM LATEST QUESTIONS AND SOLUTIONS
GUARANTEE A+
✔✔What is the term for the min number of days allowed between the pesticide
application and harvest?
A. preharvest interval
B. Prenotification interval
C. Restricted entry interval
D. Agricultural use requirement - ✔✔A. Pre harvest interval
✔✔Which one of the following statements is false
A. if a wire is close to trees it is safer to fly under the wire and then pull up and go over
the trees than it is to enter the field and then go
B. Even though you may be over the target area you must not disburse materials when
dropping in or pulling out of the field
C. It is quite acceptable to turn around over residences, farm buildings livestock
watering places, ponds, and reservations
D. None of the above statements are false - ✔✔C. It is quite acceptable to turn around
over residences, farm buildings and livestock water placings, ponds and reservations
✔✔A self-contained unit with its own hopper used by helicopters to spread dry material
is called a
A. Microfoil spreader
B. Ram air Spreader
C. Forced air dispersal system
D. Centrifugal Spreader - ✔✔Centrifugal Spreader
✔✔the chemical in a pesticide formulation that actually controls the pest is referred to
as ___
A. Adjuvant
B. Inert ingredient
C. Active Ingredient
D. Residual - ✔✔C. Active Ingredient
✔✔Rinsate may be
A. Sprayed over labeled crop or site
B. Transferred to a rinsate holding tank and used as makeup water
C. Either A or B
, D. Neither A or B - ✔✔C. Either A or B
✔✔Leafhoppers damage plants by
A. Drilling small holes in stems
B. Sucking sap and causing leaves to turn yellow
C. Skeletonizing leaves
D. None of the above - ✔✔Sucking sap and causing leaves to turn yellow
✔✔Which of the following should be used to prevent the contamination of aquatic
organisms
A. Spray when temps are at the highest point of the day
B. Choose long residual pesticides
C. Use chemicals that tightly absorb to the soil particles
D. Operate the sprayer so that t produces a very fine spray - ✔✔C. Use chemicals that
tightly absorb to the soil particles
✔✔Contamination of groundwater can be minimized by using pesticides that are
A. highly toxic
B. low in water solubility
C. Loosely absorbed to the soil
D. Persistant - ✔✔C. low in water solubility
✔✔Herbicide runoff from treated fields can be reduced by
A. Avoiding back siphoning
B. Installing grass buffer strips
C. Reducing Crop residue on soil surface
D. Spraying in the early morning and evening - ✔✔B. Installing grass buffer strips
✔✔You should always handle insecticide using good, clean ___ rubber gloves
A. Unlined
B. Lined - ✔✔A. Unlined
✔✔Herbicide injury symptoms on soybean plants that include stunting, leaf yellowing
and red veins on the underside of the leaf are characteristic
A. Microtubule inhibitors
B. ACCase inhibitors
C. Photosystem inhibitors
D. ALS inhibitors - ✔✔D. ALS inhibitors
