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dipWSET D1 | Production of Wine > D1-W2 Revision Questions > Flashcards

D1-W2 Revision Questions Flashcards

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1
Q

Which of the following pest and disease management strategies does NOT allow the use of synthetic chemicals?

a. Conventional viticulture
b. Precision viticulture
c. Sustainable viticulture
d. Organic viticulture

A

d. Organic viticulture

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2
Q

Why is horn manure (500) used in biodynamic viticulture?

a. It is beneficial to the soil
b. It is a natural herbicide
c. It is a natural fungicide
d. It is beneficial to the leaves and shoots

A

a. It is beneficial to the soil

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3
Q

What is the most effective way of dealing with bird problems in a vineyard?

a. Bird scarers i.e. bangers, metal reflectors and scarecrows
b. Cutting down surrounding trees where they nest
c. Encouraging birds of prey
d. Netting

A

d. Netting

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4
Q

What conditions impact on noble rot so it develops into grey rot?

a. Dry conditions
b. Temperatures over 25°C
c. Damp, humid mornings
d. Persistent rainfall

A

d. Persistent rainfall

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5
Q

Why is canopy management particularly important in fertile soils?

a. Fertile soils produce large crops that the vine struggles to ripen fully; canopy management can control this
b. Disease levels will be high in fertile soils.
c. To reduce water stress in the vines
d. Vine vigour will be high so it is important to ensure the canopy is organised to maximise the quality of the microclimate of the leaves and the fruit.

A

d. Vine vigour will be high so it is important to ensure the canopy is organised to maximise the quality of the microclimate of the leaves and the fruit.

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6
Q

In relation to chemical weed control what type of herbicide targets below the ground specifically?

a. Systemic herbicides
b. Pre-emergence herbicides
c. Broad spectrum herbicides
d. Contact herbicides

A

b. Pre-emergence herbicides

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7
Q

What is one of the disadvantages of using organic fertilisers in the vineyard?

a. The smell can be off-putting for workers
b. They are expensive to buy
c. They are fast release so need to be applied often to be of any real benefit
d. The nutrients are often in insoluble forms so they need to be incorporated into the soil

A

d. The nutrients are often in insoluble forms so they need to be incorporated into the soil

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8
Q

What does downy mildew need to spread?

a. Sunlight
b. Cool temperatures below 18°C
c. Shoots need to be a minimum of 20cm in length
d. Rainfall/water

A

d. Rainfall/water

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9
Q

What are the first symptoms of downy mildew infection?

a. It appears as yellow spots on the surface of the leaf
b. The new canes develop dark brown to black patches
c. Young shoots and leaves curl soon after budburst
d. It appears as grey and cobweb like patches on both sides of the leaf

A

a. It appears as yellow spots on the surface of the leaf

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10
Q

Which of the following is NOT a method for artificially improving drainage in a new vineyard site?

a. Sub-soiling
b. Digging ditches
c. Improving soil structure
d. Terrace the vineyard

A

d. Terrace the vineyard

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11
Q

Which is the best way to control eutypa dieback fungus from spreading?

a. Sulphur sprays
b. By canopy management, ensuring the canopy is open and well ventilated
c. Vineyard hygiene
d. By spraying broad spectrum fungicides

A

c. Vineyard hygiene

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12
Q

What is a key difference between fanleaf virus and leafroll virus?

a. Fanleaf is an airborne virus
b. Leafroll virus can be cured
c. Visual symptoms
d. Leafroll virus does not affect yield

A

c. Visual symptoms

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13
Q

If a grower wants to change the grape variety on a vine what is the typical method of grafting called?

a. Whip grafting
b. Machine grafting (omega technique)
c. Field grafting
d. Top (head) grafting

A

d. Top (head) grafting

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14
Q

Why are the bunches on laterals and nearest the shoot tips usually removed during green harvesting?

a. They struggle to ripen fully
b. The fruit is more exposed and suffers from over ripeness and sunburn
c. To control yields
d. Laterals are more susceptible to downy mildew so the fruit may be affected also

A

a. They struggle to ripen fully

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15
Q

Which part of the vine is grey rot infection most serious for and the most vulnerable to attack?

a. Shoots/canes
b. Leaves
c. Ripening berries
d. Flower clusters

A

c. Ripening berries

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16
Q

How can hail damage impact on the following years’ crop?

a. If the trunk is damaged
b. If the fruiting wood is damaged
c. If the leaves are damaged
d. If the berries are damaged

A

b. If the fruiting wood is damaged

17
Q

What does a winemaker assess in grape berries, destined for white wine production, prior to determining the harvest date?

a. Phenolic ripeness of the skins, acid and sugar levels
b. Health of the fruit, acid and sugar levels
c. Acid and sugar levels
d. Ripeness of the seeds, acids and sugar levels

A

b. Health of the fruit, acid and sugar levels

18
Q

Why do bush vines have to be hand harvested?

a. The fruit quality is very high
b. The spacing is very uneven for bush vines making it difficult for the machine harvester to pass through
c. A trellis system is required for machine harvesters
d. The fruiting zone in bush vines is too close to the ground, making it inaccessible for machine harvesters

A

c. A trellis system is required for machine harvesters

19
Q

Which irrigation system is most suitable when there is limited total water supply?

a. Flood irrigation
b. Fixed overhead sprinkler
c. Channel irrigation
d. Drip irrigation

A

d. Drip irrigation

20
Q

Which of the following needs to be considered when choosing an irrigation system?

  1. Soil and topography
  2. Installation costs
  3. Grape variety needs
  4. Water availability

a. 2 & 4
b. All of the above
c. 1 & 2
d. 1 & 4

A

b. All of the above

21
Q

Which wine style would not suit machine harvesting and destemming?

a. High quality sparkling wine
b. Sweet wines
c. High quality white wine
d. High quality red wine

A

a. High quality sparkling wine

22
Q

Which of the following can limit microbial growth on grapes at harvest time?

a. Cool temperatures
b. Light winds
c. Split berries
d. Warm temperatures

A

a. Cool temperatures

23
Q

Which mite causes the most damage in European vineyards?

a. Bunch mite
b. Erinose mite
c. Grape leaf rust mite
d. Spider mite

A

d. Spider mite

24
Q

What is one of the key differences between organic and biodynamic viticulture?

a. Copper is not permitted in biodynamic viticulture
b. Herbicides are permitted in organic viticulture
c. Biodynamic viticulture is more expensive
d. Certain preparations have to be used in biodynamic viticulture

A

d. Certain preparations have to be used in biodynamic viticulture

25
Q

How long is the conversion period from conventional to organic viticulture?

a. 3 months
b. 1 year
c. There is no set length for the conversion period
d. 3 years

A

????

c. There is no set length for the conversion period

26
Q

What could be considered an advantage of growing grapes organically?

a. Wine can gain an advantage in the market place
b. No pesticides are permitted
c. Low maintenance in the vineyard because the vine is left to its own devices
d. It is an inexpensive way of farming

A

a. Wine can gain an advantage in the market place

27
Q

How is phomopsis easily detected in vines?

a. Yellow oil spots appear on the upper surface of the leaf
b. Peduncles turn brown and then black patches appear, drying the stems and stopping the berry from ripening
c. Canes are whitened and weakened.
d. The berries develop a grey dusty coating after fruit set

A

c. Canes are whitened and weakened.

28
Q

How is Pierce’s disease spread in vines?

a. Germinates and spreads with rainfall or stagnant water
b. From infected rootstocks that are not certified
c. Through pruning wounds by equipment that carries the disease
d. Sharpshooter

A

d. Sharpshooter

29
Q

What impact do the winter months have on powdery mildew?

a. It kills the fungus because the optimum temperature for growth is 25°C/77ºF
b. It needs to be sprayed continually with sulphur to kill off the fungus
c. Winter prunings need to be burned because the disease can live on in the infected wood and leaves that remain on the ground
d. No impact, the fungus over winters in dormant buds if it exists from the previous growing season

A

d. No impact, the fungus over winters in dormant buds if it exists from the previous growing season

30
Q

What is a key indicator of powdery mildew infection on berries as they mature?

a. The berries split, exposing the pips
b. Maturing berries do not show any signs of powdery mildew, only the leaves and shoots.
c. Brown and black spots appear on the berries
d. They are covered in a grey/white dust

A

b. Maturing berries do not show any signs of powdery mildew, only the leaves and shoots.

31
Q

Which two rootstocks are used in areas with serious nematode infestations?

a. Dog Ridge and Ramsey
b. 420A and 3309C
c. 41B and 99R
d. 110R and 140R

A

a. Dog Ridge and Ramsey

32
Q

In cool climates rootstocks with Vitis riparia in the parentage are often chosen. What is the reason?

a. Restricts vigour
b. Vitis riparia is resistant to phylloxera
c. It is lime tolerant and the predominant soil in Europe has a high pH
d. It prefers humid and cool soils.

A

a. Restricts vigour

33
Q

You are planting a new vineyard in Burgundy and the ph is 7.5. Which rootstock parentage would be the most suitable?

a. Vitis vinifera
b. Vitis berlandieri
c. Vitis riparia
d. Vitis champini

A

b. Vitis berlandieri

34
Q

Which of the following is NOT a way to protect vines from spring frosts?

a. Fans or windmills to mix up the cold air with the warmer air above the vines.
b. Using burners (oil, gas, tyres) between the rows
c. Digging up the earth around the trunk of the vine
d. Overhead sprinklers

A

c. Digging up the earth around the trunk of the vine

35
Q

In relation to spur pruning, which trellis system doesn’t use a cordon?

a. Geneva Double Curtain (GDC)
b. Vertical shoot positioning (VSP)
c. Lyre
d. Bush vines or untrellised

A

d. Bush vines or untrellised

36
Q

When is leaf removal generally carried out on the vine?

a. Between veraison and harvest
b. Between fruitset and veraison
c. After harvest and before pruning
d. Between budburst and flowering

A

a. Between veraison and harvest

37
Q

What do Geneva Double Curtain (GDC), the Lyre and Scott-Henry trellis designs all have in common?

a. Machine operations are greatly restricted.
b. They are inexpensive to install
c. The yield is increased
d. Little knowledge required to train the vines

A

c. The yield is increased

dipWSET D1 | Production of Wine (38 decks)

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