ILLINOIS FIELD CROP APPLICATORS TEST
CERTIFICATION QUESTIONS STUDY GUIDE
2026 CORRECT ANSWERS GRADED A+
⩥ 2. Which of the following words is that number of pests per plant or
the amount of damage to a plant at which point control measures should
begin? Answer: Economic Threshold
⩥ 3. What can be said about insects? Answer: They have three pairs of
jointed legs.
⩥ 4. Which of the following is an incomplete life cycle? Answer: Egg
nymph and adult.
⩥ 5. The disease that is generally the result of unfavorable growing
conditions such as temperature or moisture extremes soil compaction
pesticide or fertilizer excess etc..? Answer: Noninfectious Disease
⩥ 6. The first step in planning a successful weed control program is?
Answer: Identify the weed (scouting)
⩥ 7. Broadleaf weeds differ from grasses how? Answer: They have
netted veins that are usually less elongated than that of grass leaves.
,⩥ 8. This weed germinates in the spring develops a root system and a
low-growing cluster of leaves called a rosette? Answer: Biennial
⩥ 9. The part of the pesticide that kills is the? Answer: Active ingredient
⩥ 10. Wettable powders when mixed with water.... Answer: Require
agitation
⩥ 11. What do Surfactants do? Answer: Decrease the surface tension of
water allowing the water carrier to spread over the surface.
⩥ 12. Can you mix two pesticides together if the label doesn't specify
they can be mixed? Answer: Yes your responsibility to make sure they
retain their properties.
⩥ 13. How can you tell two pesticides are not compatible? Answer: The
mixture may curdle gel or become sludge like.
⩥ 14. How long is certification valid in Illinois before an
applicator/operator must retest? Answer: Each exam is valid for a period
of up to 3 years as long as annual renewal forms are submitted.
⩥ 15. The pre-harvest interval is the? Answer: Amount of time that a
crop can be harvested after it has been sprayed.
, ⩥ 16. Which of the following is on every label? Answer: Keep out of
Reach of Children.
⩥ 17. Who can purchase Restricted Use Pesticides? Answer: Certified
Applicators or persons under their direct supervision.
⩥ 18. What part of the label should you look under to find the minimum
PPE you should wear? Answer: Precautionary Statement.
⩥ 19. How often should you read the pesticide label? Answer: Every
time you purchase the product- can be used up to the phase out date
⩥ 20. The Office of Safety and Health Administration protects the
nation's workers through
dissemination of information.... Answer: "Worker Right-to-Know"
⩥ 21. Which of the following dermal exposures is the most serious?
Answer: When a pesticide mixed with oil crosses the skin barrier and
into the bloodstream the results can be fatal.
⩥ 22. If you spill highly concentrated chemicals on your cloths how
should you clean them? Answer: Don't, dispose of them properly.
CERTIFICATION QUESTIONS STUDY GUIDE
2026 CORRECT ANSWERS GRADED A+
⩥ 2. Which of the following words is that number of pests per plant or
the amount of damage to a plant at which point control measures should
begin? Answer: Economic Threshold
⩥ 3. What can be said about insects? Answer: They have three pairs of
jointed legs.
⩥ 4. Which of the following is an incomplete life cycle? Answer: Egg
nymph and adult.
⩥ 5. The disease that is generally the result of unfavorable growing
conditions such as temperature or moisture extremes soil compaction
pesticide or fertilizer excess etc..? Answer: Noninfectious Disease
⩥ 6. The first step in planning a successful weed control program is?
Answer: Identify the weed (scouting)
⩥ 7. Broadleaf weeds differ from grasses how? Answer: They have
netted veins that are usually less elongated than that of grass leaves.
,⩥ 8. This weed germinates in the spring develops a root system and a
low-growing cluster of leaves called a rosette? Answer: Biennial
⩥ 9. The part of the pesticide that kills is the? Answer: Active ingredient
⩥ 10. Wettable powders when mixed with water.... Answer: Require
agitation
⩥ 11. What do Surfactants do? Answer: Decrease the surface tension of
water allowing the water carrier to spread over the surface.
⩥ 12. Can you mix two pesticides together if the label doesn't specify
they can be mixed? Answer: Yes your responsibility to make sure they
retain their properties.
⩥ 13. How can you tell two pesticides are not compatible? Answer: The
mixture may curdle gel or become sludge like.
⩥ 14. How long is certification valid in Illinois before an
applicator/operator must retest? Answer: Each exam is valid for a period
of up to 3 years as long as annual renewal forms are submitted.
⩥ 15. The pre-harvest interval is the? Answer: Amount of time that a
crop can be harvested after it has been sprayed.
, ⩥ 16. Which of the following is on every label? Answer: Keep out of
Reach of Children.
⩥ 17. Who can purchase Restricted Use Pesticides? Answer: Certified
Applicators or persons under their direct supervision.
⩥ 18. What part of the label should you look under to find the minimum
PPE you should wear? Answer: Precautionary Statement.
⩥ 19. How often should you read the pesticide label? Answer: Every
time you purchase the product- can be used up to the phase out date
⩥ 20. The Office of Safety and Health Administration protects the
nation's workers through
dissemination of information.... Answer: "Worker Right-to-Know"
⩥ 21. Which of the following dermal exposures is the most serious?
Answer: When a pesticide mixed with oil crosses the skin barrier and
into the bloodstream the results can be fatal.
⩥ 22. If you spill highly concentrated chemicals on your cloths how
should you clean them? Answer: Don't, dispose of them properly.
