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How to Cultivate Lychees
Contributed by: Webster
  • 1. What climate is most suitable for lychee cultivation?
A) Subtropical or tropical
B) Arctic
C) Temperate
D) Desert
  • 2. What is the ideal soil pH for lychee trees?
A) 7.5-8.5
B) 9.0-10.0
C) 5.5-6.5
D) 3.5-4.5
  • 3. Lychee trees require well-drained soil to prevent:
A) Leaf scorch
B) Root rot
C) Sunburn
D) Fruit splitting
  • 4. Which propagation method is most commonly used for lychees?
A) Seed
B) Air layering
C) Cuttings
D) Grafting
  • 5. How often should young lychee trees be watered?
A) Once a month
B) Daily, regardless of soil moisture
C) Only when the soil is completely dry
D) Regularly, keeping soil moist
  • 6. What type of fertilizer is generally recommended for lychees?
A) High nitrogen fertilizer
B) High phosphorus fertilizer
C) No fertilizer
D) Balanced NPK fertilizer
  • 7. When should lychee trees be pruned?
A) During flowering
B) After harvest
C) Never
D) During fruiting
  • 8. What is the purpose of pruning lychee trees?
A) To encourage disease
B) To stop fruit production
C) Improve air circulation and sunlight penetration
D) To make the tree shorter
  • 9. Lychee fruits are typically ready to harvest when they are:
A) Fully colored and easily detached
B) Overripe and soft
C) Small and unripe
D) Green and hard
  • 10. What is a common pest that affects lychee trees?
A) Praying mantis
B) Lychee stink bug
C) Earthworm
D) Ladybug
  • 11. What disease can cause significant damage to lychee fruit?
A) Rust
B) Powdery mildew
C) Anthracnose
D) Black spot
  • 12. What is the ideal spacing between lychee trees?
A) 10-15 feet
B) 40-50 feet
C) 5-10 feet
D) 25-30 feet
  • 13. How can you protect young lychee trees from frost?
A) Prune heavily
B) Apply nitrogen fertilizer
C) Wrap the trunk with burlap
D) Don't do anything
  • 14. What does mulching around lychee trees help with?
A) Attracting pests
B) Preventing root growth
C) Increasing soil pH
D) Retaining soil moisture
  • 15. Why is proper drainage important for lychee trees?
A) Prevents root rot
B) Increases nutrient uptake
C) Reduces leaf size
D) Encourages fruiting
  • 16. Which lychee variety is known for its late ripening?
A) Mid-season cultivars
B) Late-ripening cultivars
C) Early-ripening cultivars
D) Any random cultivar
  • 17. What is the 'alternate bearing' tendency in lychees?
A) Bearing fruit continuously
B) Never bearing fruit
C) Bearing fruit only every other year
D) Bearing heavily one year, then lightly the next
  • 18. How can you minimize 'alternate bearing'?
A) Planting more trees
B) Proper fertilization and pruning
C) Overwatering
D) Neglecting the trees
  • 19. What is the significance of a lychee tree's dormant period?
A) Irrelevant to fruit production
B) It only occurs in colder climates
C) Allows for leaf shedding
D) Essential for flower bud development
  • 20. What is 'air layering' also known as?
A) Grafting
B) Budding
C) Marcotting
D) Dividing
  • 21. Which nutrient is most important for lychee flower development?
A) Calcium
B) Phosphorus
C) Potassium
D) Nitrogen
  • 22. What is a sign of nitrogen deficiency in lychee trees?
A) Stunted growth
B) Dark green leaves
C) Yellowing leaves
D) Excessive fruit production
  • 23. What is the best way to prevent fruit cracking in lychees?
A) Ignoring the trees
B) Underwatering
C) Overwatering
D) Consistent watering and proper nutrition
  • 24. What role do bees play in lychee cultivation?
A) Watering the trees
B) Pollination
C) Nutrient uptake
D) Pest control
  • 25. At what temperature does cold damage occur to lychee trees?
A) Below 70°F (21°C)
B) Below 60°F (15.5°C)
C) Below 50°F (10°C)
D) Below 32°F (0°C)
  • 26. What is the purpose of girdling in lychee trees?
A) Promote flowering
B) Prevent fruiting
C) Increase leaf size
D) Kill the tree
  • 27. How long does it typically take for a lychee tree to bear fruit after planting?
A) 3-5 years
B) Never
C) 10-12 years
D) 1 year
  • 28. What is the optimal humidity level for lychee cultivation?
A) Low humidity
B) Humidity is not important
C) High humidity
D) Moderate humidity
  • 29. What is the best time of day to harvest lychees to avoid sun damage?
A) Early morning
B) Anytime
C) Late afternoon
D) Midday
  • 30. Which of the following can cause lychee sunburn?
A) Mulching
B) Proper pruning
C) Excessive sun exposure
D) Sufficient watering
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