Ohio Category 4 Seed Treatment Pest Control
Exam Questions and Correct Answers (Verified
Answers) Plus Rationale 2026 Q&A| Instant
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1. Which statement best describes the purpose of seed treatment
pesticides?
A. To control weeds after crop emergence
B. To protect seeds and seedlings from pests and diseases during
germination and early growth
C. To improve soil fertility
D. To increase irrigation efficiency
Rationale: Seed treatments protect seeds and young seedlings against
insects, fungi, and other pests during establishment.
2. Which pest is commonly managed with insecticide seed
treatments?
A. Adult grasshoppers feeding on mature plants
B. Wireworms feeding on germinating seeds
,C. Birds feeding on grain
D. Deer browsing crops
Rationale: Wireworms commonly attack germinating seeds and are
effectively managed with seed-applied insecticides.
3. What is the primary advantage of seed treatment over broadcast
pesticide application?
A. Higher pesticide use rates
B. Targeted protection using smaller amounts of pesticide
C. Elimination of all foliar sprays
D. Increased fertilizer requirements
Rationale: Seed treatments provide targeted protection while
reducing the total amount of pesticide applied.
4. Before treating seed, an applicator should first:
A. Wash the seed with water
B. Read and follow the pesticide label
C. Mix all pesticides together regardless of compatibility
D. Plant untreated seed first
Rationale: The pesticide label provides legal directions for safe and
effective use.
, 5. Which type of pesticide is most commonly used to control
seedborne fungal diseases?
A. Herbicide
B. Rodenticide
C. Fungicide
D. Defoliant
Rationale: Fungicides protect seeds from fungal pathogens carried on
or around the seed.
6. Which PPE is commonly required during seed treatment
operations?
A. Sandals and shorts
B. Chemical-resistant gloves, protective clothing, and eye protection
C. Swimsuit
D. Cloth gloves only
Rationale: Proper PPE minimizes pesticide exposure during handling
and application.
7. Treated seed should never be used for:
A. Planting according to label directions
B. Research trials
, C. Commercial farming
D. Human or animal consumption
Rationale: Treated seed contains pesticides that make it unsafe for
food or feed.
8. Why is accurate calibration important when treating seed?
A. To increase seed size
B. To ensure the correct pesticide rate is applied
C. To improve rainfall
D. To reduce seed germination intentionally
Rationale: Proper calibration ensures effective pest control while
preventing over- or under-treatment.
9. Excess treated seed should be:
A. Fed to livestock
B. Sold as food grain
C. Disposed of or stored according to label directions
D. Mixed with untreated seed for food use
Rationale: Treated seed must be handled according to label
instructions to prevent contamination.
10. Which environmental condition may reduce seed treatment
effectiveness?
Exam Questions and Correct Answers (Verified
Answers) Plus Rationale 2026 Q&A| Instant
Download Pdf
1. Which statement best describes the purpose of seed treatment
pesticides?
A. To control weeds after crop emergence
B. To protect seeds and seedlings from pests and diseases during
germination and early growth
C. To improve soil fertility
D. To increase irrigation efficiency
Rationale: Seed treatments protect seeds and young seedlings against
insects, fungi, and other pests during establishment.
2. Which pest is commonly managed with insecticide seed
treatments?
A. Adult grasshoppers feeding on mature plants
B. Wireworms feeding on germinating seeds
,C. Birds feeding on grain
D. Deer browsing crops
Rationale: Wireworms commonly attack germinating seeds and are
effectively managed with seed-applied insecticides.
3. What is the primary advantage of seed treatment over broadcast
pesticide application?
A. Higher pesticide use rates
B. Targeted protection using smaller amounts of pesticide
C. Elimination of all foliar sprays
D. Increased fertilizer requirements
Rationale: Seed treatments provide targeted protection while
reducing the total amount of pesticide applied.
4. Before treating seed, an applicator should first:
A. Wash the seed with water
B. Read and follow the pesticide label
C. Mix all pesticides together regardless of compatibility
D. Plant untreated seed first
Rationale: The pesticide label provides legal directions for safe and
effective use.
, 5. Which type of pesticide is most commonly used to control
seedborne fungal diseases?
A. Herbicide
B. Rodenticide
C. Fungicide
D. Defoliant
Rationale: Fungicides protect seeds from fungal pathogens carried on
or around the seed.
6. Which PPE is commonly required during seed treatment
operations?
A. Sandals and shorts
B. Chemical-resistant gloves, protective clothing, and eye protection
C. Swimsuit
D. Cloth gloves only
Rationale: Proper PPE minimizes pesticide exposure during handling
and application.
7. Treated seed should never be used for:
A. Planting according to label directions
B. Research trials
, C. Commercial farming
D. Human or animal consumption
Rationale: Treated seed contains pesticides that make it unsafe for
food or feed.
8. Why is accurate calibration important when treating seed?
A. To increase seed size
B. To ensure the correct pesticide rate is applied
C. To improve rainfall
D. To reduce seed germination intentionally
Rationale: Proper calibration ensures effective pest control while
preventing over- or under-treatment.
9. Excess treated seed should be:
A. Fed to livestock
B. Sold as food grain
C. Disposed of or stored according to label directions
D. Mixed with untreated seed for food use
Rationale: Treated seed must be handled according to label
instructions to prevent contamination.
10. Which environmental condition may reduce seed treatment
effectiveness?
