WSET LEVEL 3 COMPREHENSIVE EXAM 2026
FULL QUESTIONS AND CORRECT ANSWERS
◉ 4. / Disadvantage & Advantage of american vines ? Answer:
Unattractive flavour of the wines
But resistant to phylloxera - used for rootstocks
◉ 4. / What is phylloxera ? Answer: Vine pest (insect) that attacks vine's
root
Native from north america
◉ 4. / When was phylloxera introduced in europe ? Answer: End of 19th
century
◉ 4. / How phylloxera destroy the vines ? Answer: Infection enter
through the feeding wounds - vine is weakened and over a few year dies
◉ 4 / Places in the world without phylloxera ? Answer: Yes : chile, some
parts of argentina and south australia.
◉ 4. / How to fight phylloxera ? Answer: - Strict quarantine for non
affected areas.
,- plant american species or hybrid
- Grafting vitis vinifera onto rootstock of american vines
◉ 4. / What are the 2 grafting techniques existing ? Answer: Bench
grafting - in nurseries
Head grafting - in vineyards
◉ 4. / What is the advantage of head grafting ? Answer: Quickly change
an establish vineyards to a new grape variety taking advanyage of
established root syst
Grape at next vintage / instead of waiting 3 years
Considerably cheaper than replanting
◉ 4. / Four sections of vines ? Answer: Green parts
One year old wood
Permanent wood
Roots
◉ 4. / What are the leaves responsible for ? Answer: Photosynthesis
◉ 4. / What is photosynthesis process ? Answer: Plant use sunlight to
convert carbon dioxide and water into glucose and oxygen
,◉ 4. / What are vine flowers representing ? Answer: Vine reproductive
organs - both male and female
◉ 4. / What is inflorescences ? Answer: A bunch of vine flowers that if
pollinated will become the bunch of grape.
◉ 4. / What is a buds ? Answer: An embryonic shoot for the following
year forming at the joint of the leave and the shoot
◉ 4. / What are the roots functions ? Answer: - absorb water
- absorb nutrients
- anchor vine
- store carbohydrates to survive winter
◉ 4. / Criteria for selecting a grape variety ? Answer: Taste
Quality of fruit
Budding time
Ripening time
Resistance to diseases
◉ 4. / Can a variety be grown or propagated through seeds ? Answer: No
, ◉ 4. / Name 2 techniques to grow or propagate grape variety without
loosing unique qualities. Answer: Cutting
Layering
◉ 4. / Out of the 2 techniques used to grow grape variety which one is
most common today ? Answer: Cutting - due to phylloxera risk
◉ 4. / Describe cutting principle. Answer: A section of vine shoot that is
planted and grows as a new plant
Mainly in commercial nurseries
◉ 4. / What other term can be used instead of variety for a grape ?
Answer: Cultivar
◉ 4 / describe layering principle. Answer: Takes place in vineyard
A cane is bend down and a section of it is buried in the ground, cane tip
points upwards, buried section take roots, once roots established cane
linking is cut
◉ 4. / What is clonal selection ? Answer: Selection of vine that show a
particular set of unique characteristics following mutations
FULL QUESTIONS AND CORRECT ANSWERS
◉ 4. / Disadvantage & Advantage of american vines ? Answer:
Unattractive flavour of the wines
But resistant to phylloxera - used for rootstocks
◉ 4. / What is phylloxera ? Answer: Vine pest (insect) that attacks vine's
root
Native from north america
◉ 4. / When was phylloxera introduced in europe ? Answer: End of 19th
century
◉ 4. / How phylloxera destroy the vines ? Answer: Infection enter
through the feeding wounds - vine is weakened and over a few year dies
◉ 4 / Places in the world without phylloxera ? Answer: Yes : chile, some
parts of argentina and south australia.
◉ 4. / How to fight phylloxera ? Answer: - Strict quarantine for non
affected areas.
,- plant american species or hybrid
- Grafting vitis vinifera onto rootstock of american vines
◉ 4. / What are the 2 grafting techniques existing ? Answer: Bench
grafting - in nurseries
Head grafting - in vineyards
◉ 4. / What is the advantage of head grafting ? Answer: Quickly change
an establish vineyards to a new grape variety taking advanyage of
established root syst
Grape at next vintage / instead of waiting 3 years
Considerably cheaper than replanting
◉ 4. / Four sections of vines ? Answer: Green parts
One year old wood
Permanent wood
Roots
◉ 4. / What are the leaves responsible for ? Answer: Photosynthesis
◉ 4. / What is photosynthesis process ? Answer: Plant use sunlight to
convert carbon dioxide and water into glucose and oxygen
,◉ 4. / What are vine flowers representing ? Answer: Vine reproductive
organs - both male and female
◉ 4. / What is inflorescences ? Answer: A bunch of vine flowers that if
pollinated will become the bunch of grape.
◉ 4. / What is a buds ? Answer: An embryonic shoot for the following
year forming at the joint of the leave and the shoot
◉ 4. / What are the roots functions ? Answer: - absorb water
- absorb nutrients
- anchor vine
- store carbohydrates to survive winter
◉ 4. / Criteria for selecting a grape variety ? Answer: Taste
Quality of fruit
Budding time
Ripening time
Resistance to diseases
◉ 4. / Can a variety be grown or propagated through seeds ? Answer: No
, ◉ 4. / Name 2 techniques to grow or propagate grape variety without
loosing unique qualities. Answer: Cutting
Layering
◉ 4. / Out of the 2 techniques used to grow grape variety which one is
most common today ? Answer: Cutting - due to phylloxera risk
◉ 4. / Describe cutting principle. Answer: A section of vine shoot that is
planted and grows as a new plant
Mainly in commercial nurseries
◉ 4. / What other term can be used instead of variety for a grape ?
Answer: Cultivar
◉ 4 / describe layering principle. Answer: Takes place in vineyard
A cane is bend down and a section of it is buried in the ground, cane tip
points upwards, buried section take roots, once roots established cane
linking is cut
◉ 4. / What is clonal selection ? Answer: Selection of vine that show a
particular set of unique characteristics following mutations
