Horticulturist
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. Which of the following insects can defoliate a flowering crabapple?
a. Bagworm
b. Japanese Beetle
c. Aphid
d. Scale insect
Correct Answer: b. Japanese Beetle
2. Buds may contain:
a. Mature flowers only
b. Roots and stems only
c. Immature leaves, a meristem, or immature flower(s)
d. Seeds only
Correct Answer: c. Immature leaves, a meristem, or immature flower(s)
3. The most effective chemical method to control perennial broadleaf weeds such as
dandelion is:
a. Preemergence herbicides in spring
b. Postemergence herbicides applied in early October
c. Insecticide applications
d. Fertilizer applications
Correct Answer: b. Postemergence herbicides applied in early October
4. Low soluble salts in a growing medium can be harmful to plant health, but high soluble
salts are not a problem to worry about.
a. True
, b. False
Correct Answer: b. False
5. Perennial grasses such as nimblewill are best controlled with multiple applications of
non-selective herbicides like glyphosate (Roundup) when the weed is actively growing.
a. True
b. False
Correct Answer: a. True
6. The Disease Triangle involves which three factors?
a. Water, soil, and nutrients
b. Insect, host, and fertilizer
c. Favorable environment, resistant variety, and pathogen
d. Sunlight, irrigation, and pruning
Correct Answer: c. Favorable environment, resistant variety, and pathogen
7. The best timing for cutting back ornamental grasses is:
a. Mid-summer
b. Late fall
c. Early spring
d. Winter
Correct Answer: c. Early spring
8. Preemergent herbicides kill weeds when applied to emerged plant foliage.
a. True
b. False
Correct Answer: b. False
9. Perennial weeds can reproduce both vegetatively and by seed production.
a. True
b. False
Correct Answer: a. True
10. Which of the following is NOT one of the three sections in the standard format for
Technical Specifications?
a. General
, b. Products
c. Execution
d. Prices or Costs
Correct Answer: d. Prices or Costs
11. What does the signal word on a pesticide label indicate?
a. Cost of the pesticide
b. Toxicity
c. Application rate
d. Shelf life
Correct Answer: b. Toxicity
12. In the nomenclature of Cornus florida, the generic name and specific epithet combine to
form the species name.
a. True
b. False
Correct Answer: a. True
13. Which two factors impact fungicide application frequency?
a. Soil pH and mulch depth
b. Plant growth and rainfall
c. Fertilizer type and pruning
d. Wind and humidity only
Correct Answer: b. Plant growth and rainfall
14. When exclusive rights are granted for 20 years to commercially grow or sell a newly
discovered or developed plant cultivar, the rights holder possesses a:
a. Trademark
b. Copyright
c. Patent
d. License
Correct Answer: c. Patent
15. What should you do first if a pesticide is spilled on your skin or clothing?
a. Call the manufacturer
b. Continue working
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. Which of the following insects can defoliate a flowering crabapple?
a. Bagworm
b. Japanese Beetle
c. Aphid
d. Scale insect
Correct Answer: b. Japanese Beetle
2. Buds may contain:
a. Mature flowers only
b. Roots and stems only
c. Immature leaves, a meristem, or immature flower(s)
d. Seeds only
Correct Answer: c. Immature leaves, a meristem, or immature flower(s)
3. The most effective chemical method to control perennial broadleaf weeds such as
dandelion is:
a. Preemergence herbicides in spring
b. Postemergence herbicides applied in early October
c. Insecticide applications
d. Fertilizer applications
Correct Answer: b. Postemergence herbicides applied in early October
4. Low soluble salts in a growing medium can be harmful to plant health, but high soluble
salts are not a problem to worry about.
a. True
, b. False
Correct Answer: b. False
5. Perennial grasses such as nimblewill are best controlled with multiple applications of
non-selective herbicides like glyphosate (Roundup) when the weed is actively growing.
a. True
b. False
Correct Answer: a. True
6. The Disease Triangle involves which three factors?
a. Water, soil, and nutrients
b. Insect, host, and fertilizer
c. Favorable environment, resistant variety, and pathogen
d. Sunlight, irrigation, and pruning
Correct Answer: c. Favorable environment, resistant variety, and pathogen
7. The best timing for cutting back ornamental grasses is:
a. Mid-summer
b. Late fall
c. Early spring
d. Winter
Correct Answer: c. Early spring
8. Preemergent herbicides kill weeds when applied to emerged plant foliage.
a. True
b. False
Correct Answer: b. False
9. Perennial weeds can reproduce both vegetatively and by seed production.
a. True
b. False
Correct Answer: a. True
10. Which of the following is NOT one of the three sections in the standard format for
Technical Specifications?
a. General
, b. Products
c. Execution
d. Prices or Costs
Correct Answer: d. Prices or Costs
11. What does the signal word on a pesticide label indicate?
a. Cost of the pesticide
b. Toxicity
c. Application rate
d. Shelf life
Correct Answer: b. Toxicity
12. In the nomenclature of Cornus florida, the generic name and specific epithet combine to
form the species name.
a. True
b. False
Correct Answer: a. True
13. Which two factors impact fungicide application frequency?
a. Soil pH and mulch depth
b. Plant growth and rainfall
c. Fertilizer type and pruning
d. Wind and humidity only
Correct Answer: b. Plant growth and rainfall
14. When exclusive rights are granted for 20 years to commercially grow or sell a newly
discovered or developed plant cultivar, the rights holder possesses a:
a. Trademark
b. Copyright
c. Patent
d. License
Correct Answer: c. Patent
15. What should you do first if a pesticide is spilled on your skin or clothing?
a. Call the manufacturer
b. Continue working
