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The Study Of The Rate Of Scales Insects (Aonidiella Aurantii Maskll,
Lepidosaphes Beckii Newman Parlatoria Pergandii Comstock) Between
Each Other And Its Natural Enemies On Citrus In The Syrian Coast
Kais Ghazal, Ahmad Rai, and Fedaa Shamseen, Agriculture
Department of Lattakia, Lattakia Centre for Insectary and Reared Natural
Enemies, P.O. Box 3100, Lattakia, Syria.
Abstract
The Armored Scale insects are considered as main pests which infest citrus in
Syria and the main species on citrus in Syria are A.aurantii, L.
beckii and P. pergandii .The study aimed to identify the most common
insect on citrus. The occirrence of the three insects on citrus fruits in the
2001/2002 growing season in seven locations was monitored. P.pergandii
reached the highest infestation rate (62.5%) followed by A. aurantii
(22.6%) and L. beckii (14.9%). There was very significant differences at 0.05%
level in four locations between P. pergandii and the sum of L.
beckii and A. aurantii, and only one location with no significant
difference among the three insects. During 2002/2003 growing season and in 11
locations, again P. pergandii was the most common (65.22%). The
infestation rate of A. aurantii was 28.26% and that of L. beckii
was 6.52% .There was so significant differences at 0.05% level in five
locations between P. pergandii and the sum A. aurantii and L. beckii.
Three parasitoids on P. pergandii (Encarsia spp., Aphytis spp. and
unknown parasitoids) and one cheyletid mite predator were identified. Likewise,
four parasitoids on L. beckii (Encarsia spp., Aphytis spp., Marietta picta
and unknown parasitoids) were identified. Additionally, two predators on the
three insects (Chilocorus bipustulatus Linnaeus and Rhyzobius
spp.) were also identified
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| New Publications |
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The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
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| New Publications |
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The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
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| Conferences, Fez |
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
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| Conferences, Syria |
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The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
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| Conference,Yemen |
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Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
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| Conferences Canada |
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The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
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| Conferences, Egypt |
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The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
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| Workshop,Lebanon |
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New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
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| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
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