Brown spots are present on the leaves and it is caused by
bacteria and fungi.
Bacterial leaf spots are watery whereas fungal spots are
dry.
Leaves with fungal leaf spots tend to be susceptible with the
spots
Bacterial spots gets severe only when secondary bacterial
infections invade.
Bacterial infections go on its own when the weather condition
changes to dry .
Persistant infection kills the plant or the fruits bearing
capacity is reduced in plants.
This type of disease is called as blight disease.
Anti -fungal agents can be sprayed during bacterial blights ,
which may reduce further fungal attack. These agents can be sprayed
during fungal attack also.
These agents adjust the pH of the environment of the plant .
and thereby microbes cannot survive leading to death of the
organism.