Page 23 - Volume 7, Issue 1, January 2014
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© Benaki Phytopathological Institute
Glycaspis brimblecombei
in Greece
21
considerable nuisance (Paine
et al
., 2006).
Laudonia and Garonna (2010) observed 2-4
generations per year in Australia, but there
are not available data for life history in Eu-
rope.
Glycaspis brimblecombei
develops on var-
ious
Eucalyptus
species including
E. blake-
lyi
Maiden,
E. brassiana
Blake,
E. bridgesiana
Baker,
E. camaldulensis
Dehnh.,
E.
camphora
Baker,
E. dealbata
Cunn. ex Schauer,
E. man-
nifera
ssp.
maculosa
Baker,
E.
nitens
Deane
and Maiden,
E. teriticornis
Smith, ,
E.
lehman-
nii
(Schauer) Benth.,
E. diversicolor
Muell,
E.
globulus
Labill,
E. sideroxylon
Cunn ex Wool-
lis,
E. rudis
Endl.,
E. cinerea
Muell,
E. clado-
calyx
Muell,
E. ficifolia
Muell,
E. grandis
Hill
ex Maiden,
E. paniculata
Smith,
E. platypus
Hook,
E.
polyanthemos
Schauer,
E. pulveru-
lenta
Sims,
E. robusta
Smith,
E. saligna
Smith,
E. viminalis
Labill,
E. leucoxylon
Meull,
E. mac-
randra
Muell ex Benth and
E. nicholii
Maiden
and Blakely (Brennan
et al.
, 1999; Brennan
et
al
. 2001; Hollis 2004; Percy
et al.
, 2012). From
the above
Eucalyptus
species,
E. camaldulen-
sis
,
E. rudis
and
E.
teriticornis
are moderate to
highly susceptible with heavy defoliation
(Brennan
et al
., 2001) and is considered pre-
ferable to avoid their planting.
Economic impact of redgum lerp psyllid
may be more serious than other eucalyptus
psyllids.
Glycaspis brimblecombei
has a wide
host range compared with other eucalyp-
tus psyllids and has impact to nurseries, or-
namental and forestry plantations. Life cycle
completes in immature and mature leaves
and an infestation of this pest can defoli-
ate the host. Continuing defoliation caus-
es stress to the trees and makes them more
susceptible to other pathogens and insect
infestations (Landsberg, 1990).
A sustainable IPM programme should be
performed for sufficient control, as
G. brim-
blecombei
spreads quickly (Santana and
Burckhardt, 2007). Many generalist preda-
tors have been recorded to feed on this psyl-
lid, such as coccinellid beetles, lacewings
(Erbilgin
et al.
, 2004), syrphids, chrysopids
and anthocorids. The parasitoid
Psyllaepha-
gus bliteus
Riek (Hymenoptera: Encyrtidae)
has been reported as highly efficient and
has been introduced in the USA from Aus-
tralia in an effort of classical biological con-
Figure 3.
Eggs and lerps of
G. brimblecombei.
Figure 4.
Eucalyptus
sp. leaves infested by
G. brimblecombei.
