Viticulture/Training Flashcards

1
Q

When does pruning taking place?

A

December-March

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2
Q

When is bud break?

A

March
3-4 weeks after shoot growth

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3
Q

When does flowering take place?

A

May
Inflorescence occurs 6-9 weeks after bud break

Bloom lasts 8-10 days

Early ripening picked 8-10 weeks after flowering

Late ripening 18 weeks

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4
Q

When does leaf pulling, summer pruning take place?

What do green harvests do?

A

July

Limit yields

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5
Q

When does veraison/ripening take place?

A

August

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6
Q

When is harvest?

A

August-September-October

Most picked 45 days after veraison

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7
Q

How long is the growing season?

A

165-180 days

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8
Q

When is winter pruning?

A

November

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9
Q

What did replanting post-phylloxera look like?

A

Opportunity to plant parcels to a single grape variety.
They replanted in rows

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10
Q

What is powdery mildew?

A

“Odium” A fungal disease that blankets the vine with thick, white filaments
Yields are reduced if outbreak occurs before flowering

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11
Q

What is downy mildew?

A

“Peronospera” Loves warm, humid weather.
Attacks leaves and stems with oil spots then with white cotton filaments

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12
Q

What is a Bordeaux Mixture?

A

Copper sulfate application to combat downy mildew

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13
Q

What is an asian fruit fly?

A

“Drisophila Suzukii They lay eggs in soft fruits and their larva hatch and feed on the pulp

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14
Q

What is Botrytis?

A

Fungus
“Noble rot”
Mold concentrates sugars
Need cool/moist mornings and warm/dry afternoons
Honey dessert wine

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15
Q

What grapes are most vulnerable to Coulure?

A

Merlot + Malbec
“Poor fruit set”

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16
Q

Why is the vine pruned?

A

Maintains size and shape
Limits upcoming yields
Positions the fruit into a specific area
Position of shoots and canes

17
Q

What does botrytis due to sugar?
Tartaric and malic acid?

A

Reduce sugar by 1/3
drop T and M acid by 5/6 and 1/3

18
Q

3 most typical training systems in France?

A

Guyot
Gobelet
Cordon

19
Q

Guyot?

A

Long cane prune method
Horizonal support wire

20
Q

Gobelet?

A

Head pruned vines or bush vines, freestanding and no trellis support
For warm/dry coimates

21
Q

Cordon?

A

A trunk ands single horizontal permanent arm trained on a support wire

22
Q

Eventail?

A

“Fan” 4-5long arms spread out along the trellis in a fan shape
Beaujolais, Savoie, Languedoc

23
Q

Valled de la Marne?

A

Resembles double Guyot, except both canes are shunted in the same direction on the trellis wire (vs opposite direction)
Meunier in Champagne

24
Q

Training in Chablis?

A

Spur pruned bush vine
Trunk hugs the ground and semi-perm arms spread out from it in the shape of a fan

25
Q

What is Charpente?

A

Long spur with fruitful buds which produces the crop
Developed in Chablis
Used for Chardonnay in Champagne

26
Q

What is conventional farming?

A

Use of agrochemicals to control weeds/insects/disease

27
Q

What is sustainable viticulture?

A

Uses agrochemicals only when necessary
Focus on cover crops (Minimize erosion)

28
Q

What is Lutte Raisonee?

A

Organic mulches decrease disease and pest pressure while returning nutrients to the soil

29
Q

Oldest Biodynamic vineyard?

A

Demeter in Germany since 1982

30
Q

What does Biodyvin certify

A

Vineyards only

31
Q

Who was Maria Thun?

A

Farmer who planted radish seeds as the moon moved through the different start constellations.

Flower plants do best when the moon is moving through air constellations

Fruit bearing-Moves through fire constellations

Leafy crops-Moves through water constellations

32
Q

Who was the first vigneron in France to adopt biodynamic practices?

A

Eugene Meyer

33
Q

What year were fungus resistant hybrid grapevines banned?

A

1951

34
Q

Who brought fungus resistant hybrid grapevines back?

A

Alain Bouquet