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Quiz - Grapevine Trunk Diseases

1) Which diseases are known under the term « Grapevine Trunk Diseases (GTD) » ?

(Institut Français de la Vigne et du Vin)

Mildew, Oïdium, Botrytis
Esca, Eutypa dieback and Botryosphaeria dieback
Phomopsis cane and leaf spot, Anthracnose

2) When was sodium arsenite forbidden all over Europe ?

In 2001
In 2003
In 2010

3) Does it exist, at this day, effective struggle methods ?

Yes
No

4) Does sensibility to GTDs and symptoms expression differ between cultivars ?

(Dienstleistungszentrum Ländlicher Raum Rheinpfalz)

True
Wrong

5) Grapevine Trunk Diseases affect

young grapevines
mature grapevines (8 years old and older)
dead grapevines

6) Link fungi to their disease

Phaeoacremonium aleophilum

Erysiphe necator

Botryosphaeriaceae

Eutypa lata

Guignarda bidwellii

Fomitiporia mediterranea

Phaemoniella chlamydospora

7) The following symptoms are typical of:

Botryosphaeria dieback

Esca

Eutypa dieback

1
(Philippe Larignon, IFV)

2
(Philippe Larignon, IFV)

3
(Philippe Larignon, IFV)

8) Which part of the plant can express symptoms? (several possible answers)

The entire plant
One arm
The trunk
Some shoots
The roots

9) Grapevine trunk disease can be chronic and apoplexy diseases. What does that mean? (several possible answers)

(Institut Français de la Vigne et du Vin)

Apoplexy is a very fast wilting and death of the grapevine
Apoplexy is a very slow form of wilting leading in long term the death of the grapevine
Chronic form is a slow withering, with fluctuation in symptoms over the years and leading the death of the grapevine the long term
Grapevine can express the diseases in the twshapes

10) Which diseases are both on apoplexy and slow perennial diseases/chronic form? (several possible answers)

Esca
Botryosphaeria dieback
Eutypa dieback

11) Which are the diseases’ infection location?

Pruning cuts
Leaves
Roots
Berries

12) Which are fungi diffusion’s modes ?

Shears
Rainfall and wind
Crushed vine-shoots

This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement N°652601