Vine Diseases and Insect Threats Flashcards Preview

Viticulture / Vinification > Vine Diseases and Insect Threats > Flashcards

Flashcards in Vine Diseases and Insect Threats Deck (11):
1

Diseases that affect the vine can be broadly categorized into what 4 main groups?

  • Fungal
  • Viral
  • Bacterial
  • Phytoplasma

2

How do fungal diseases manifest?

Fungal diseases manifest as mildew or mold and are typically associated with warm and damp climates, attacking either the root system or the canopy of the grapevine

  • img. Downy Mildew

A image thumb
3

How are fungal spores spread?

Fungal spores are spread by wind and rain and a disease, once entrenched in a vine, may infect an entire vineyard

A image thumb
4

What are some of the most worrisome fungal diseases?

downy mildew, powdery mildew

  • Originated in America, arriving in Europe on cuttings in the 19th century

A image thumb
5

What are phytoplasma diseases also known as? 

grapevine yellows

 

 

A image thumb
7

What are phytoplasma diseases caused by?

Q image thumb

phytoplasmas

  • Pathogens similar to bacteria, yet they are symptomatically similar to viral diseases and, like viruses, must be spread through an insect vector or rootstock grafting

A image thumb
8

What is fungal disease Powdery Mildew also known as?

Odium

A image thumb
9

What is fungal disease Downy Mildew also known as?

Q image thumb

Peronospora

A image thumb
10

What fungal disease is also called dead arm?

Q image thumb

Eutypa Dieback

A image thumb
11

What is fungal disease Esca also known as?

Black Measles

  • Esca (Black Measles) is one of the earliest known fungal grapevine diseases

A image thumb
15

Where and when were phytoplasma diseases first recorded?

Europe, mid-1990s

  • May cause widespread difficulties in the 21st century