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