Virginia Commercial Pesticide
Applicator Category 3 Ornamental and
Turf Pest Control Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. The primary purpose of an Integrated Pest Management (IPM)
program in ornamentals and turf is to:
A. eliminate all pests regardless of cost
B. minimize pest damage through combined management practices
C. rely solely on chemical control methods
D. increase plant growth hormone application
The rationale is that IPM focuses on minimizing pest damage by
integrating cultural, biological, and chemical strategies rather than
relying exclusively on pesticides.
2. Which of the following is the most effective cultural control for
managing dollar spot disease in turf?
A. Weekly fungicide application
B. Improving air circulation and reducing leaf wetness
C. Increasing nitrogen fertilization late in the season
D. Applying high volumes of irrigation at night
The rationale is that dollar spot thrives in prolonged leaf wetness, so
reducing moisture and improving air movement helps suppress the
pathogen.
,3. What is the primary mode of action for contact herbicides?
A. Absorbed by roots and translocated throughout the plant
B. Kills plant tissues only where the spray contacts
C. Interferes with plant hormone synthesis systemically
D. Inhibits soil microbial activity
The rationale is that contact herbicides cause damage only at the
point of contact since they are not translocated within the plant.
4. Which of the following turfgrass pests is a caterpillar that causes
significant damage by feeding at night?
A. White grubs
B. Chinch bugs
C. Sod webworms
D. Billbugs
The rationale is that sod webworms are larvae of moths that feed on
turfgrass blades at night, causing irregular brown patches.
5. A pesticide label’s signal word “DANGER” indicates that the product:
A. is acceptable for home use
B. is highly toxic and requires strict protective measures
C. has minimal toxicity
D. is only hazardous to insects
The rationale is that “DANGER” is the highest signal word, indicating
serious toxicity and required precautions.
6. The best method to reduce the likelihood of herbicide volatilization is
to:
A. apply in high winds
B. water immediately after application
C. choose low-volatility formulations and cool temperatures
D. increase spray droplet size
The rationale is that low-volatility products and cooler conditions
help prevent the herbicide from vaporizing and moving off-target.
7. Which beneficial organism is commonly used to biologically control
turfgrass nematodes?
A. Lady beetles
B. Entomopathogenic nematodes
C. Earthworms
, D. Predatory mites
The rationale is that entomopathogenic nematodes can parasitize
and kill pest nematodes, serving as a biological control partner.
8. Contact insecticides are typically most effective when applied:
A. after pests enter the soil
B. during rain events
C. while pests are actively feeding on foliage
D. when temperatures exceed 95°F
The rationale is that contact insecticides are most effective when
pests are exposed and actively feeding on treated surfaces.
9. A turfgrass fertilizer with an N-P-K ratio of 24-4-12 contains what
percentage of nitrogen?
A. 4%
B. 12%
C. 16%
D. 24%
The rationale is that the first number in an N-P-K ratio represents the
percent nitrogen in the fertilizer formulation.
10. When calibrating a sprayer, you are determining:
A. pesticide shelf life
B. maximum wind speed for application
C. the amount of pesticide applied per unit area
D. soil pH
The rationale is that calibration ensures the correct amount of
pesticide is delivered per unit area for effective and safe application.
11. Which of the following diseases is caused by a fungal pathogen
and results in a red ring on turfgrass stems?
A. Pythium root rot
B. Dollar spot
C. Rust
D. Red thread
The rationale is that red thread disease is a fungal condition
producing red-pink threads on turfgrass blades.
12. To prevent pesticide drift, applicators should:
A. increase spray pressure
Applicator Category 3 Ornamental and
Turf Pest Control Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. The primary purpose of an Integrated Pest Management (IPM)
program in ornamentals and turf is to:
A. eliminate all pests regardless of cost
B. minimize pest damage through combined management practices
C. rely solely on chemical control methods
D. increase plant growth hormone application
The rationale is that IPM focuses on minimizing pest damage by
integrating cultural, biological, and chemical strategies rather than
relying exclusively on pesticides.
2. Which of the following is the most effective cultural control for
managing dollar spot disease in turf?
A. Weekly fungicide application
B. Improving air circulation and reducing leaf wetness
C. Increasing nitrogen fertilization late in the season
D. Applying high volumes of irrigation at night
The rationale is that dollar spot thrives in prolonged leaf wetness, so
reducing moisture and improving air movement helps suppress the
pathogen.
,3. What is the primary mode of action for contact herbicides?
A. Absorbed by roots and translocated throughout the plant
B. Kills plant tissues only where the spray contacts
C. Interferes with plant hormone synthesis systemically
D. Inhibits soil microbial activity
The rationale is that contact herbicides cause damage only at the
point of contact since they are not translocated within the plant.
4. Which of the following turfgrass pests is a caterpillar that causes
significant damage by feeding at night?
A. White grubs
B. Chinch bugs
C. Sod webworms
D. Billbugs
The rationale is that sod webworms are larvae of moths that feed on
turfgrass blades at night, causing irregular brown patches.
5. A pesticide label’s signal word “DANGER” indicates that the product:
A. is acceptable for home use
B. is highly toxic and requires strict protective measures
C. has minimal toxicity
D. is only hazardous to insects
The rationale is that “DANGER” is the highest signal word, indicating
serious toxicity and required precautions.
6. The best method to reduce the likelihood of herbicide volatilization is
to:
A. apply in high winds
B. water immediately after application
C. choose low-volatility formulations and cool temperatures
D. increase spray droplet size
The rationale is that low-volatility products and cooler conditions
help prevent the herbicide from vaporizing and moving off-target.
7. Which beneficial organism is commonly used to biologically control
turfgrass nematodes?
A. Lady beetles
B. Entomopathogenic nematodes
C. Earthworms
, D. Predatory mites
The rationale is that entomopathogenic nematodes can parasitize
and kill pest nematodes, serving as a biological control partner.
8. Contact insecticides are typically most effective when applied:
A. after pests enter the soil
B. during rain events
C. while pests are actively feeding on foliage
D. when temperatures exceed 95°F
The rationale is that contact insecticides are most effective when
pests are exposed and actively feeding on treated surfaces.
9. A turfgrass fertilizer with an N-P-K ratio of 24-4-12 contains what
percentage of nitrogen?
A. 4%
B. 12%
C. 16%
D. 24%
The rationale is that the first number in an N-P-K ratio represents the
percent nitrogen in the fertilizer formulation.
10. When calibrating a sprayer, you are determining:
A. pesticide shelf life
B. maximum wind speed for application
C. the amount of pesticide applied per unit area
D. soil pH
The rationale is that calibration ensures the correct amount of
pesticide is delivered per unit area for effective and safe application.
11. Which of the following diseases is caused by a fungal pathogen
and results in a red ring on turfgrass stems?
A. Pythium root rot
B. Dollar spot
C. Rust
D. Red thread
The rationale is that red thread disease is a fungal condition
producing red-pink threads on turfgrass blades.
12. To prevent pesticide drift, applicators should:
A. increase spray pressure
