Population density of Edwardsiana rosae L. (Hem.: Cicadellidae) on different genotypes of Rosa damascena in Azarbaijan-e-Gharbi province
Subject Areas :
Keywords: Iran, Rosa damascena Mill, Edwardsiana rosae L, Azarbaijan-e-Gharbi,
Abstract :
Damask rose, Rosa damascena Mill. is one of the most important medicinal plants that its ooze, distillates and oil are used. Various pests such as Edwardsiana rosae L. often cause damage in this ornamental plant. Because of unfavorable side-effects of pesticides upon both rose products and environment, using a combination of different control methods should be considered. Evaluation of pest population level and damage in different genotypes of Damask rose would be a noticeable step in this regard. During 2010-2011, infestation of 36 genotypes of R. damascena by this important pest was evaluated in Urmia, Azarbaijan-e-Gharbi province. Field studies were carried out in Saatlo Plant Protection Research Station, Urmia. Field samplings were done on over-wintering eggs. Analyses of variance revealed a significant difference between the examined genotypes. The lowest density of E. rosae eggs was observed in genotypes 1, 12, 16, 22, 10 and 14, originally obtained from the provinces Azarbaijan-e-Sharghi, Zanjan, Fars (No.1), Kohgiluyeh-Boyerahmad, Ghom and Semnan (No. 2), while the highest oviposition preference was recorded in genotypes 39, 32, 35, 6, 17, 25 and 21 originated from Isfahan (No.7), Yazd (No. 2), Isfahan (No. 2), Ilam, Fars (No. 2), Guilan and Kermanshah respectively.
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