Department of Plant Pathology |
|
|
|
Viruses cause
four important pea diseases. Each disease is caused by a different
virus and has its own symptoms. Viruses that cause these diseases
overwinter in certain plants (e.g., clovers, vetches, alfalfa)
of the legume family. Aphids acquire virus from infected plants
and transmit virus to other plants during their feeding activities.
Pea Enation Mosaic
Pea Stunt
Bean Yellow Mosaic
Pea Streak |
|
|
|
Pea Enation Mosaic virus causes yellowish areas on leaves, blister-like
ridges (enations) on undersides of leaves and on pods, pod distortion,
and suture splitting. |
|
|
Pea Stunt, caused by red clover vein
mosaic virus, is characterized by light-colored veins, terminal
rosetting, stunting, and poor pod set. |
|
|
Bean Yellow Mosaic virus (BV-2) causes
green and yellow mottle or mosaic patterns, and promotes growth
from auxiliary buds. |
|
|
Pea Streak, caused by a combination of bean yellow mosaic and pea
stunt viruses, is characterized by purplish brown flattened pods,
purplish brown streaks on stems, death of veins, yellowing on
some leaves, and eventual wilting and death of terminal growth. |
|
| |
|
|
){kind=link}
){kind=link}
){kind=link}
){kind=link}