Diseases and Pests Flashcards
1
Q
Eutypa Dieback (Dead Arm)
A
Fungal diseases
2
Q
Esca (Black Measles)
A
Fungal diseases
3
Q
Black Rot (Guignardia Bidwelli fungus)
A
Fungal diseases
4
Q
Bunch Rot
A
Fungal diseases
5
Q
Pierce’s Disease (Xylella Fastidiosa)
A
- Bacterial Diseases
- Caused by glassy
winged sharpshooter. Cannot produce chlorophyll
6
Q
Glasswing sharpshooter
A
Pierce’s Disease
7
Q
Crown Gall (Black Knot)
A
- Bacterial Diseases
- Tumors in the trunk of the vine.
Propagated by infected budwood
8
Q
Bacterial Blight (Xanthomonas Ampelina)
A
- Bacterial Diseases
Dark brown streaks on grapevine shoots. Caused by dirty tools and
spread by rain.
9
Q
Leafroll Virus (Curled up Leaves)
A
Viral Diseases
- reduced yields, delayed ripening
10
Q
Fanleaf Degeneration
A
Viral Diseases
- Soil nematodes feeding on infected
roots. Leaves are malformed
11
Q
Flavascence Dorée
A
Phytoplasma Diseases
- Leafhopper insects spread disease.
Delay budbreak and slow shoot growth. Delay budbreak
and slow shoot growth. Berries
