WSET Level 3 Exam 2024 Graded A+

WSET Level 3 Exam 2024 Graded A+ 4. / Name 2 most important species of vine - ANSVitis vinifera - eurasian American vines 4. / Disadvantage & Advantage of american vines ? - ANSUnattractive flavour of the wines But resistant to phylloxera - used for rootstocks 4. / What is phylloxera ? - ANSVine pest (insect) that attacks vine's root Native from north america 4. / When was phylloxera introduced in europe ? - ANSEnd of 19th century 4. / How phylloxera destroy the vines ? - ANSInfection enter through the feeding wounds - vine is weakened and over a few year dies 4 / Places in the world without phylloxera ? - ANSYes : chile, some parts of argentina and south australia. 4. / How to fight phylloxera ? - ANS- 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 ? - ANSBench grafting - in nurseries Head grafting - in vineyards 4. / What is the advantage of head grafting ? - ANSQuickly 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 ? - ANSGreen parts One year old wood Permanent wood Roots 4. / What are the leaves responsible for ? - ANSPhotosynthesis 4. / What is photosynthesis process ? - ANSPlant use sunlight to convert carbon dioxide and water into glucose and oxygen 4. / What are vine flowers representing ? - ANSVine reproductive organs - both male and female 4. / What is inflorescences ? - ANSA bunch