- The damage caused by caterpillars is often serious causing large scale defoliation.
- Very severe damage is sometimes noticed on young plants.
- In such cases the vines get stripped off of all leaves.
- Flowers and young fruits also are eaten up by the caterpillars.
Count the total number of caterpillars from five one square meter area. Work out the average. Mild <5 caterpillars per sq meter. Moderate 5-10 ,Severe > 10.