Viticulture and Vinification

Question 1

What is peronospera?

Answer 1

Downy mildew

Question 2

What is Odium?

Answer 2

Powdery Mildew

Question 3

At what stages is the vine most susceptible to frost?

Answer 3

Bud break and flowering

Question 4

In the southern hemisphere what stage of the vine’s life cycle happens in August?

Answer 4

Budbreak

Question 5

What is the preffered average temp for red grapes?

Answer 5

70 degrees

Question 6

What is the minimum amount of sun needed to ripen grapes?

Answer 6

1300 hours

Question 7

Term for bunches of grapes where some of the grape flowers fail to fertilize?

Answer 7

Millerandage

Question 8

What is Coloure?

Answer 8

Shatter or when unfertilized grape embryos fall to the ground

Question 9

Term for uneven ripening of grape bunches common in Zinfandel?

Answer 9

Asynchrony

Question 10

1500 to 2000 degree days is what region?

Answer 10

1a

Question 11

how many degree days is region 1b?

Answer 11

2000 - 2500

Question 12

how many degree day is region II?

Answer 12

2500 to 3000

Question 13

Haw many degree days is region III?

Answer 13

3000 to 3500

Question 14

How many degree days is region IV?

Answer 14

3500 to 4000

Question 15

How many degree days is region V?

Answer 15

4000 to 4900

Question 16

Regional Climate is also known as what kind of climate?

Answer 16

Macroclimate

Question 17

What is the climate of the particular vineyard known as?

Answer 17

Mesoclimate

Question 18

Climate around the vine canopy is reffered to as?

Answer 18

Microclimate

Question 19

What is a scion?

Answer 19

Budwood

Question 20

What is Clonal selection

Answer 20

reproduction from a single vine

Question 21

What is selection Massale?

Answer 21

replanting from budwood throughout the vineyard to reinforce positive traits

Question 22

Guyot Vine train is an example of what training and pruning methods?

Answer 22

Head trained

Cane Pruned

Question 23

What is the simplest form of Vine training method?

Answer 23

Head trained spur pruned

Question 24

Name 4 terms used for head trained spur pruned vines

Answer 24

Gobelet

Albarello

En Vaso

Bush Vines

Question 25

What are the benefits of VSP?

Answer 25

can be cane or spur

Question 26

Other than Downy and powdery mildew name 2 fungal diseases?

Answer 26

Eutypa Dieback Esca (black Measles)

Question 27

What disease concerns would you most likely have in a humid Climate?

Answer 27

Fungal Downy and Powdery Mildew

Question 28

Name all the fungal diseases advanced by Rain?

Answer 28

Downy Mildew Powdery Mildew Esca Black (measles

Question 29

What effect does Downy mildew have on the Vine?

Answer 29

Causes leaves to drop off the vine

Question 30

How does powdery Mildew effect the vine?

Answer 30

Attacks all the green parts and inhibits bunch growth

Question 31

How is Eutypa Dieback Spread?

Answer 31

Pruning

Question 32

How does Esca effect the vine?

Answer 32

kills young vines and affects the wood of older vines

Question 33

Guignardia Bidwelli fungus cause what vine disease?

Answer 33

Black Rot

Question 34

VSP is ideal in what conditions?

Answer 34

Low vigor vines High density planting

Question 35

Name 2 examples of a split canopy system?

Answer 35

Lyre California Sprawl Geneva double Curtain

Question 36

What is a potential problem with parallel fruit zones?

Answer 36

fruit zone ripen at different times

Question 37

Xylella Fastidiosa cases what vine malady?

Answer 37

Pierce's Disease

Question 38

How does Pierce's Disease effect the vine?

Answer 38

It prevents the vine from producing chlorophyll

Question 39

Tumefaciens bacterium causes what vine disease?

Answer 39

Crown Gall (black Knot)

Question 40

How does Crown Gall disease effects the vine in what manner?

Answer 40

develops tumors and strangles the vines

Question 41

Bacterial Blight effects what parts of the vine?

Answer 41

Effect young shoots

Question 42

What were the 2 Burgundy vintages most effected by Lady bugs in the last 25 years?

Answer 42

04 and 11

Question 43

What is debourrement?

Answer 43

Budbreak