- leaves are more or less densely covered
with purple or brown blotches and translucent,
shell-like lerps
- infested tree can be completely
defoliated and eventually dies
Lace or Basket Lerp
Cardiaspina spp.
(Psyllidae)
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- leaves are covered with white fibrous
lerps that more or less defoliate the host
- leaves often stained with black sooty
mould growing on honey dew
Glycaspis spp.
(Psyllidae)
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- skeletonized leaves with brown or dark
yellow spots
- defoliation of the host
- conical larval cases or bags of less than
one centimetre length attached to leaves
- pupae in shelter attached to leaves by
thick silken thread
Case Moth
Hyalarcta spp.
(Psychidae)
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- young seedlings in the nursery completely
defoliated, bent or cut off right above the soil
- damage occurs mostly during night
- stem of seedling debarked or ringbarked
at the base
Seedlings either damaged by cutworms (Noctuidae) or by grasshoppers (Orthoptera)
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- leaves of terminal branches of younger
trees trimmed by larval beetles
- defoliation of tree tops
- crescent-shaped feeding notches on leaves
of the lower crown made by adult beetles
Eucalypt Leaf Beetle Paropsis spp. (Chrysomelidae)
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(reprod. by permission of CSIRO Australia)
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- fine, powder-like dust on the bark
beneath the bore holes
- cross section shows boreholes that are
radially arranged
- infestation occurs mainly after fire
Xylothrips religiosus
Boisduval and other powder-post beetles (Bostrichidae and Anobiidae)
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(reproduced from Wylie, F.R. et al., 1973)
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