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Pest status of olive leaf gall midge Dasineura oleae (Angelini, 1831), description of Lasioptera oleicola Skuhravá sp. new (Diptera: Cecidomyiidae) and effectiveness of parasitoids on their populations in Hatay Turkey
Abstract
During investigations conducted in 2007-2010 in Hatay Province, Turkey, two species of gall midges, Dasineura oleae (Angelini, 1831) and Lasioptera oleicola Skuhravá sp. new were reared from galls on leaves and shoots of Olea europaea L. Average level of infestation on olive leaves and shoots by gall midges was 15.2 % and the highest level 78.2 %. Olive leaves, normally evergreen and outlasting on branches for several years, seriously injured by gall midges fell off and defoliage resulted in loss of ability to product flower buds and fruits in the following year. Dasineura oleae causing significant reduction or loss of yield of olive fruits is a serious pest of olive tree and we declare here its pest status. Population levels of gall midges on olive leaves were significantly reduced by 12 species of parasitic Hymenoptera belonging to five families, viz. Platygaster oleae Szelenyi, 1940 (Platygastridae); Eupelmus urozonus Dalman 1820 (Eupelmidae); Torymus phillyreae Ruschka, 1921 (Torymidae); Mesopolobus mediterraneus (Mayr, 1903), Mesopolobus diffinis (Walker, 1834) and Mesopolobus aspilus (Walker, 1835) (Pteromalidae); Quadrastichus dasineurae Doganlar, LaSalle, Sertkaya & Doganlar, 2009, Aprostocetus samandagus Doğanlar 2011, Aprostocetus lasiopterus Doğanlar 2011, Zeytinus hatayensis Doğanlar 2011 and additional 2 undescribed species of the genus Aprostocetus (Eulophidae). Larvae of these parasitoids kill larvae and pupae of gall midges inside galls. Total level of parasitism amounts 66.2 %. E. urozonus, P. oleae and Q. dasineurae are three main parasitoids reared from galls of D. oleae and L. oleicola sp. new They are very effective and reduce significantly the populations of D. oleae in galls, together for about 70 %, and may be evaluated as important supressors of olive leaf gall midges. Lasioptera oleicola Skuhravá sp. new is described, its taxonomically important features are illustrated and some biological data are given.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Publication Date
June 30, 2011
Submission Date
September 15, 2010
Acceptance Date
March 8, 2011
Published in Issue
Year 2011 Volume: 35 Number: 2
APA
Doğanlar, M., Sertkaya, E., & Skuhravá, M. (2011). Pest status of olive leaf gall midge Dasineura oleae (Angelini, 1831), description of Lasioptera oleicola Skuhravá sp. new (Diptera: Cecidomyiidae) and effectiveness of parasitoids on their populations in Hatay Turkey. Turkish Journal of Entomology, 35(2), 265-284. https://izlik.org/JA28TF94TG