Page 33 - Volume 2, Issue 1, January 2009
Basic HTML Version
© Benaki Phytopathological Institute
Hellenic Plant Protection Journal
2:
33-35, 2009
SHORT COMMUNICATION
First records of armoured scale insects (Hemiptera: Coccoidea:
Diaspididae) from the oil-rose,
Rosa damascena,
in Turkey
O. Demirözer
1
, M.B. Kaydan
2
, I. Karaca
1
and Y. Ben-Dov
3
Summary
The olive Parlatoria scale,
Parlatoria oleae
(Colvée) and the apple oyster-shell scale
Lepidos-
aphes ulmi
(L.) (Hemiptera: Coccoidea: Diaspididae) are recorded for the first time infesting the oil-rose,
Rosa damascena,
at Isparta, Turkey. These armoured scale insects are considered as potential pests to
the cultivation of the oil-rose.
population density of 75-100 scales per 10
cm length of a twig.
P. oleae
was remarkably
less common, being found at only one plot
of this crop at Isparta.
The two species, mentioned above, are
widely distributed mainly in the Palaearc-
tic, Nearctic and Oriental zoogeographical
regions, and are highly polyphagous.
P. ole-
ae
has been recorded from about 150 host
plant species that belong to 51 families,
while
L. ulmi
is known from about 270 spe-
cies of host plants belonging to 63 families
(5, 6). Therefore, we assume that their infes-
tation on the oil-rose in Turkey was previ-
ously overlooked.
Both species are considered serious
pests of fruit and ornamental trees. Howev-
er, insect natural enemies play a significant
role in their biological control (1, 2, 5, 6, 8,
10).
Figures 2 and 3 show the scale covers of
both species with exit holes of hymenopter-
ous parasitoids. Therefore, we draw the at-
tention of growers, that if chemical con-
trol measures are applied within the frame
of pest management in the cultivation of
oil-rose, these should be cautiously recom-
mended and applied, in order to prevent the
upset or resurgence of these potential pests
from becoming destructive pests in the oil-
rose cultivation.
The oil-bearing rose,
Rosa damascena
Mill.
(Rosaceae) is an agricultural crop cultivated
in various countries of the northern hemi-
sphere, such as Turkey, Bulgaria, Morocco,
Iran, Egypt, France, China and India. Turkey
and Bulgaria are the major producers of this
crop in the world. The annual production in
Turkey is estimated at 1.5 – 2 tons of rose oil,
and Bulgaria produces approximately 1 – 1.5
tons (3, 7, 11).
The cultivation of
R. damascena
is dam-
aged by several diseases and insect pests
(e.g. 9). However, only one species of scale
insects (Hemiptera: Coccoidea), the soft
scale
Rhodococcus
perornatus
(Cockerell &
Parrott), has been recorded as a pest of oil-
rose (4).
Here we report on infestations of twigs
of
R. damascena
with two species of ar-
moured scale insects (Hemiptera: Diaspidi-
dae), namely,
Lepidosaphes ulmi
(L.) (Figures
1, 2), and
Parlatoria
oleae
(Colvée) (Figures
3, 4) at Isparta, Turkey.
L. ulmi
was found in
14 plots, among 40 orchards inspected, at
1
Department of Plant Protection, Faculty of Agricul-
ture, Suleyman Demirel University, Isparta 32260
Turkey.
2
Yüzüncü Yil University, Agriculture Faculty, Plant Pro-
tection Department, 65080 Kampüs/VAN, Turkey.
3
Department of Entomology, Agricultural Research
Organization, Bet Dagan 50250, Israel.
Corresponding author: Y. Ben-Dov
