AN ECOLOGICAL STUDY OF POPLAR LEAVES GALL EGERIROTRIOZA CEARDI BERG IN MOSUL REGION

	AN ECOLOGICAL STUDY OF POPLAR LEAVES GALL EGERIROTRIOZA CEARDI BERG IN MOSUL REGION
AL-TAQANI
Article 1, Volume 19, Issue 3, 2006, Pages 0-0
Abstract
The study was done in forests region in Mosul governorate during 1998 – 1999, showing that Egeirotrioza ceardi Berg (Psyllidea: Homoptera) exist at all phases of euphratic poplar tree (Populus euphratica) from early spring until winter beginning, within the two years of the study causing leaf deformation. Results indicate numerical density of the insect fluctuated during this period and reached its highest level in June (1265 and 1145) insects at temperature of (26.4 and 30.6c) for both years respectively. Also as a result of this study the adults pass their hibernation under tree leaves and barks nearly for four months, with rate of egg laying for each female between 27 – 40 eggs and larva phase has five ages with a period of (28, 49, 84, 56, 28) days respectively, finally the study indicates that this psyllid has one generation in the year

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