Page 4 - Volume 1, Issue 2, July 2008

Anagnou-Veroniki et al. 56
2007 are summarized in this article. The
plant pathogen records, including fungi,
bacteria, viruses and viroids, for the same
period, were recently published by Elena
et al. (2008).
1. Insect pests
The data presented here are mostly based
on records reported in the literature and
only a small number comes from sam-
ples examined at this laboratory and reg-
istered either in the Annual Reports or
the Archive material of the Benaki Phyto-
pathological Institute. New aphid species,
coccids and Agromyzidae are not includ-
ed here as they have been recently record-
ed and summarized (Katsoyannos, 1994;
Kozár et al., 1994, Kavallieratos et al., 2001,
2004b, 2004c, Souliotis & Süss, 2004).
The species are discussed in the text
arranged by the order and the family and
listed in Table 1 alphabetically.
1.1. Hemiptera - Homoptera
The woolly whitefly Aleurothrixus floc-
cosus Maskell (Aleyrodidae), one of the
most important pests of citrus, was first
recorded in Attica by Κatsoyannos, (1991).
Currently it is present in all citrus grow-
ing areas of Greece and causes econom-
ic damage when at high population den-
sities. The introduced parasitoid Cales
noacki Howard has managed to con-
trol the whitefly where insecticide spray-
ing against other citrus pests was avoid-
ed. The present pest status of the woolly
whitefly is considered to be “under con-
trol” as it shows periodic increases at cer-
tain areas that are however controlled by
the parasitoid.
Two aphid species are included here as
they have become very important recent-
ly, namely Aphis citricola van der Goot
(Aphididae) on citrus (Lycouressis, 1990a)
and Macrosiphum euphorbiae (Thom-
as) (Aphididae) on cotton (Lycouressis,
1990b). We should mention, however, that
in Greece there are many species of aphids
that can be important pests. All these spe-
cies have already been presented by oth-
er authors (Katsoyannos, 1994, Kavalliera-
tos et al., 2001, 2004b, 2004c).
The grapevine aphid Aphis illinoisen-
sis Shimer (Aphididae), a native to Amer-
ica, was reported for the first time from
Greece (and generally from Europe) in
2005 to feed on grapevine plants in Crete
(Aggelakis et al., 2005). The aphid is al-
ready widespread in Crete. It has been
found on almost all grapevine varieties
grown in the area and seems to prefer the
vigorous ones.
The soft scale Parthenolecanium per-
sicae (Fabricius) (Coccidae) was found on
grapevines in Messinia (Peloponnese) in
October 2000 and on Viburnum tinus in
Central Greece in June of the same year
(Stathas, 2003c). The insect was first re-
corded in Greece (July 1983) on Morus
sp. in Northern Greece (Epanomi) (Kozár,
1985).
Nemolecanium graniformis (Wünn)
(Coccidae) is a pest of Grecian fir (Abies ce-
phalonica) that was found in 1996 in the
mountain of Parnitha. The insect produc-
es honeydew on which sooty mould de-
velops (Stathas, 1997).
The pyriform scale insect, Protopulv-
inaria pyriformis (Cockerell) (Coccidae)
was found on bay plants (Laurus nobilis) in
Kalamata (Peloponesse) in October 2003.
The insect was also found in many other
countries on more than 100 plant species
(Ben-Dov et al., 2003).
The elm bark scale Ritsemia pupifera
Lichtenstein (Pseudococcidae) was found
on elm trees (Ulmus sp.). It develops on the
bark of the tree and is covered with dense
white waxy secretions (Savopoulou et al.,
1997)
Lepidosaphes pistaciae Archangels-
kaya (Diaspididae) was observed in 1990