How to Identify and Classify Crabapples
  • 1. What is the primary characteristic that defines a crabapple?
A) Edible fruit regardless of size
B) Fruit diameter of 2 inches or less
C) Thorn-like branches
D) Specific leaf shape
  • 2. Which fruit feature is MOST important for identifying crabapple cultivars?
A) Color and size
B) Bark texture
C) Branch angle
D) Leaf shape
  • 3. A 'persistent' fruit on a crabapple refers to what?
A) Fruit that is resistant to pests
B) Fruit ripening early in the season
C) Fruit remaining on the tree through winter
D) Fruit that is very hard
  • 4. What leaf characteristic can help differentiate crabapple varieties?
A) Leaf thickness
B) Presence or absence of pubescence (hairs)
C) Leaf weight
D) Leaf size
  • 5. Which disease is commonly found on crabapple trees?
A) Dutch elm disease
B) Powdery mildew on oaks
C) Apple scab
D) Rose black spot
  • 6. Why is disease resistance important when selecting crabapple cultivars?
A) To increase fruit production
B) To make the tree grow faster
C) To improve the taste of the fruit
D) To minimize the need for chemical treatments
  • 7. What type of flower arrangement is most common in crabapples?
A) Tripled
B) Double
C) Single
D) Quadruple
  • 8. What flower color is commonly seen in crabapple blossoms?
A) Pink
B) Orange
C) Blue
D) Purple
  • 9. What fruit characteristic affects the aesthetic appeal in winter?
A) Fruit color
B) Fruit texture
C) Fruit size
D) Fruit firmness
  • 10. Which form is NOT typically observed in crabapple trees?
A) Vase-shaped
B) Rounded
C) Weeping
D) Columnar
  • 11. What is a significant consideration when using crabapples for wildlife?
A) Branch density
B) Fruit persistence
C) Flower fragrance
D) Leaf color
  • 12. What is the significance of the calyx end of the fruit?
A) It determines the fruit's sweetness
B) It helps in identifying specific cultivars
C) It has no significance
D) It indicates the level of disease resistance
  • 13. Which factor affects the flavor of crabapples?
A) Leaf shape
B) Bark thickness
C) Cultivar
D) Tree size
  • 14. What does the term 'scab resistant' mean for a crabapple tree?
A) The tree is immune to all diseases.
B) The tree requires no pruning.
C) The tree is less likely to be affected by apple scab disease.
D) The fruit will be larger than normal.
  • 15. What time of year is best to evaluate fruit color for identification?
A) Summer
B) Fall
C) Winter
D) Spring
  • 16. Which environmental factor can affect fruit set in crabapples?
A) Soil pH
B) Pruning method
C) Pollination
D) Fertilizer type
  • 17. Why are crabapples often grafted?
A) To make the tree more cold hardy
B) To change the flower color
C) To propagate desirable traits
D) To make the fruit larger
  • 18. What is a key difference between crabapples and standard apple trees?
A) Root structure
B) Fruit size
C) Bark texture
D) Leaf shape
  • 19. Which of the following is NOT a use for crabapples?
A) Ornamental planting
B) Lumber production
C) Jelly making
D) Wildlife food source
  • 20. What part of the crabapple flower develops into the fruit?
A) Ovary
B) Sepal
C) Petal
D) Stamen
  • 21. How does sun exposure impact crabapple fruit color?
A) It makes the fruit sweeter
B) Sun exposure has no effect on color
C) More sun intensifies the color
D) More sun lightens the color
  • 22. What tool is best for accurately measuring crabapple fruit diameter?
A) Ruler
B) Caliper
C) Eyeballing
D) Tape measure
  • 23. What characteristic of the bark is LEAST helpful for identification?
A) Furrow depth
B) Presence of lenticels
C) Color when the tree is young
D) Peeling pattern
  • 24. What is the term for the opening on the fruit where the stem was attached?
A) Calyx end
B) Fruit apex
C) Core
D) Stem end
  • 25. Why is knowing the parentage of a crabapple cultivar useful?
A) It determines its price.
B) It guarantees disease resistance.
C) It affects its growth rate.
D) It can help predict its characteristics.
  • 26. Which factor is LEAST important for crabapple flower identification?
A) Flower color
B) Petal thickness
C) Petal number
D) Flower fragrance
  • 27. What does 'alternate' leaf arrangement mean on a crabapple branch?
A) Leaves are arranged in pairs opposite each other.
B) Leaves are arranged singly at different points along the stem.
C) Leaves are clustered at the end of the branch.
D) Leaves are arranged in whorls.
  • 28. What is the typical pH range that crabapples prefer?
A) 7.5-8.5
B) 4.0-5.0
C) 6.0-7.0
D) 8.5-9.5
  • 29. What is the primary purpose of pruning crabapple trees?
A) To increase fruit size.
B) To improve air circulation and light penetration.
C) To change the flower color.
D) To prevent disease.
  • 30. Which characteristic is most helpful in identifying a crabapple seedling?
A) Leaf characteristics
B) Flower color
C) Fruit size
D) Bark texture
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