Identification Symptoms
- On the undersurface of disease
leaves are found patches of whitish powder growth.
- On upper surfaces, leaves at
the infection site show blotches of yellow or pale green usually near
vein, surrounded by normally colored tissue.
- Occasionally, fungus may attack
the stem of young seedling when grown under reduced light condition. The
spots enlarge and cover the entire leaf area. Severely infected leaves may
become chlorotic and distorted before falling. Affected fruits are small
in size and malformed.
- Fungus grow superficially on
the undersurface of the leaves with drawing nutrients from the cell of
leaf surface by specialized absorbing structure known as haustoria.