Mealy bug: Planoccus citri
Symptoms of damage
- Both nymphs and adults suck the sap from the cells of tender branches and fruits
- Turn pale colour
- Affected plant parts - wilt and dry up
- Large amounts of honey dew excrete - sooty mould fungus
- Fungus covers the foliage and fruits
- In severe infestation the flowers do not form fruits
Identification of pest
- Eggs: Are laid in clusters, protective cottony mass
- Nymphs : Are amber coloured with white waxy coating with filaments
- Adult: Male is winged, long antenna and without mouth parts . Female is wingless, flat body and short, waxy filaments along the margins
Management
- Collect and destroy the damaged leaves, twigs and stems
- Use sticky trap (5cm length) on fruit bearing shoots
- Soil treatment with chlorophyriphos apply on the near the tree trunk
- Spraying of trees with acephate, .
- Field release of Australian lady bird beetle, Cryptoleamus montrouizeri 10 per tree
| Egg mass | Adult female and crawlers |
| Mealy bug on fruits |