Pest status of olive leaf gall midge Dasineura oleae (Angelini, 1831), description of Lasioptera oleicola Skuhrava sp new (Diptera: Cecidomyiidae) and effectiveness of parasitoids on their populations in Hatay Turkey
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Dosyalar
Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Entomological Soc Turkey, Ege Univ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
During investigations conducted in 2007-2010 in Hatay Province, Turkey, two species of gall midges, Dasineura oleae (Angelini, 1831) and Lasioptera oleicola Skuhrava 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 Doganlar 2011, Aprostocetus lasiopterus Doganlar 2011, Zeytinus hatayensis Doganlar 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 Skuhrava sp. new is described, its taxonomically important features are illustrated and some biological data are given.
Açıklama
Anahtar Kelimeler
Olea europaea, gall midges, Hymenopter-parasitoids, Turkey
Kaynak
Turkiye Entomoloji Dergisi-Turkish Journal of Entomology
WoS Q DeÄŸeri
Q4
Scopus Q DeÄŸeri
Cilt
35
Sayı
2
