Solanaceus

Question 1

Fusarium solani

Answer 1

Fusarium root rot

Question 2

Symptoms do not appear until two or three weeks
after planting. The first symptoms are narrow,
long, red to brown lesions on the stems;
lengthwise cracks often develop

Answer 2

Fusarium solani

Question 3

causes little damage to healthy
plants, but under conditions of plant stress due to
drought, poor nutrition, or oxygen-stressed,
waterlogged soils, Fusarium root rot can cause
plant dieback and yield losses

Answer 3

Fusarium solani

Question 4

Pseudomonas syringae pv. Phaseolicola

Answer 4

Halo blight

Question 5

Pseudomonas syringae pv. Phaseolicola

Answer 5

Halo blight

Question 6

Typical symptoms are small brown spots that are
surrounded by a light-green or yellow halo. The
halo ranges from dime-size to the size of a quarter.
It is caused by a toxin produced by the halo blight
bacterium when the temperatures are less than
21ºC for at least part of the day. In hot weather,
halo blight will resemble bacterial brown spot.

Answer 6

Pseudomonas syringae pv. Phaseolicola

Question 7

Common blight and halo blight cause watersoaked, greasy looking spots on pods and dead
spots surrounded by a chlorotic halo on leaves.
The dead areas enlarge rapidly under favourable
conditions until they cover most of the leaf, giving
the plants a burned appearance.

Answer 7

Halo blight