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Morphology And Biology Of The Coccinellid Vibidia Duodecimguttata Poda (Coleoptera: Coccinellidae) A Predator Of Powdery Mildew Fungi (Erysiphaceae)

Ghaidaa Younis(1) Mohammad Ahmad(2) and Nawal Ali(1)
(1)Department of Botany, Faculty of Science, Tishreen University, Lattakia, Syria
(2)Department of Plant Protection, Faculty of Agriculture, Tishreen University, Lattakia, Syria

Abstract


TThe Coccinellid Vibidia duodecimguttata Poda (Coleoptera: Coccinellidae) is wide-spread along the coastal region of Syria. The ladybird was found feeding on many species of powdery mildew (Erysiphaceae), which infect various plant species (weeds, crops, fruit and forest trees). The insect activity starts from mid June until the end of December 2001. Morphology and biology of Vibidia duodecimguttata were studied under laboratory condition (2.5±2 C, 70±5% RH, 12 h) using Morus nigra leaves infected with Phyllactinia guttata. Life stages and instars of V. duodecimguttata were described, measured and weighed. The total period of the life cycle was 22.3±1.22 days. Mean female fecundity was 74.93±48.61 eggs, longevity 98.8±46.86 days for females and 79.9±39.69 days for males. V. duodecimguttata was recorded on 11 plant species belonging to 7 families.



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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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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.


Conferences, Fez
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.


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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


Conference,Yemen
Current Status of Plant Protection in Yemen and Future Strategy. Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004


Conferences Canada
The 9th International Conference of the Orthopterists’ Society Canada, on August 14 19, 2005


Conferences, Egypt
The First Arab Conference on Applications of Biological Control of Pests in Arab Countries


Workshop,Lebanon
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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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