LOUISIANA HORTICULTURE PRACTICE
TEST ONE CERTIFICATION EVALUATION
2026 SCRIPT SOLUTIONS GRADED A+
⩥ What is the primary benefit of adding organic matter to soil?
Answer: Improves soil structure and water retention
⩥ What is the optimal pH range for most horticultural crops?
Answer: 6.0 - 7.0
⩥ How often must a licensed horticulturist in Louisiana renew their
license?
Answer: Every 1 year
⩥ What is the function of phosphorus in plant growth?
Answer: Encourages root and flower development
⩥ Which type of insecticide is considered systemic?
Answer: Imidacloprid
⩥ When is the best time to prune azaleas in Louisiana?
Answer: Just after they finish blooming in spring
, ⩥ What agency regulates horticulture licenses in Louisiana?
Answer: Louisiana Department of Agriculture and Forestry (LDAF)
⩥ Which irrigation system is most water-efficient for landscape beds?
Answer: Drip irrigation
⩥ Which part of the plant is responsible for photosynthesis?
Answer: Leaves
⩥ What is a warm-season grass suitable for Louisiana lawns?
Answer: Bermuda
⩥ Which license is required to install and maintain landscape irrigation
systems in Louisiana?
Answer: Landscape Irrigation Contractor License
⩥ What is the correct mowing height for St. Augustine grass in
Louisiana?
Answer: 2.5 to 4 inches
⩥ Which plant part absorbs water and nutrients?
TEST ONE CERTIFICATION EVALUATION
2026 SCRIPT SOLUTIONS GRADED A+
⩥ What is the primary benefit of adding organic matter to soil?
Answer: Improves soil structure and water retention
⩥ What is the optimal pH range for most horticultural crops?
Answer: 6.0 - 7.0
⩥ How often must a licensed horticulturist in Louisiana renew their
license?
Answer: Every 1 year
⩥ What is the function of phosphorus in plant growth?
Answer: Encourages root and flower development
⩥ Which type of insecticide is considered systemic?
Answer: Imidacloprid
⩥ When is the best time to prune azaleas in Louisiana?
Answer: Just after they finish blooming in spring
, ⩥ What agency regulates horticulture licenses in Louisiana?
Answer: Louisiana Department of Agriculture and Forestry (LDAF)
⩥ Which irrigation system is most water-efficient for landscape beds?
Answer: Drip irrigation
⩥ Which part of the plant is responsible for photosynthesis?
Answer: Leaves
⩥ What is a warm-season grass suitable for Louisiana lawns?
Answer: Bermuda
⩥ Which license is required to install and maintain landscape irrigation
systems in Louisiana?
Answer: Landscape Irrigation Contractor License
⩥ What is the correct mowing height for St. Augustine grass in
Louisiana?
Answer: 2.5 to 4 inches
⩥ Which plant part absorbs water and nutrients?
