- young
larvae scrape on the upper surface
of the leaves leaving the lower surface intact.
- mature
larvae may start chewing on any part of the leaf initially producing
round holes. When feeding in groups, irregular holes are formed and may
totally defoliate the plant.
- adults
produce large round holes in the leaves.
-
occasionally, attacks are sufficiently
severe to completely skeletonise the leaves, defoliate the plant and
peel the stems.