© Benaki Phytopathological Institute
Milonas & Partsinevelos
22
trol (Daane
et al
., 2005; Dahlsten
et al
., 2005;
Huerta
et al.
, 2011; Sime
et al
., 2004).
Cultural practices and tree health can
also affect the psyllid population and the
extent of damage
. With tolerant varieties,
infrequent irrigation and nitrogen fertiliza-
tion, tree stress can be reduced and avoid
damage (Paine
et al
., 2006). Systemic insecti-
cides provide control sometimes, but
gener-
ally, their effectiveness in the U.S.A. is con-
sidered
inappreciable and foliage sprays are
not recommended as natural enemies can
be harmed (Paine
et al
., 2006).
P.S.:
After finalizing the manuscript for publication
and uploading, a paper about the occurrence of
Gly-
caspis brimblecombei
in Greece was published (Tsag-
karakis
et al.,
2013).
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Received: 2 October 2013; Accepted: 19 January 2014