Research Article | Open Access
Volume 2 | Issue 3 | Year 2015 | Article Id. IJAES-V2I3P101 | DOI : https://doi.org/10.14445/23942568/IJAES-V2I3P101

Biological Synchronization of The Endo-parasitoid Platygaster demades Walker (Hymenoptera:Platygasteridae) With Its host The Olive Leaf Midge Dasineura oleae F. Loew (Diptera: Cecidomyiidae)


Zahraa M. Baidaq, Ali M. Ramadhane, Randa Abu Tara

Citation :

Zahraa M. Baidaq, Ali M. Ramadhane, Randa Abu Tara, "Biological Synchronization of The Endo-parasitoid Platygaster demades Walker (Hymenoptera:Platygasteridae) With Its host The Olive Leaf Midge Dasineura oleae F. Loew (Diptera: Cecidomyiidae)," International Journal of Agriculture & Environmental Science, vol. 2, no. 3, pp. 1-8, 2015. Crossref, https://doi.org/10.14445/23942568/IJAES-V2I3P101

Abstract

The biology of the Olive Leaf Midge (OLM), Dasineura oleae (Diptera:Cecidomyiidae) F. Loew and the endo-parasitoid Platygaster demades (Hymenoptera : Platygasteridae) Walker was studied on olive orchards in the Syrian Coast in Lattakia province during 2013 & 2014. Presence of one generation of the olive leaf midge on the leaves was registered. Biological synchronization of the endo-parasitoid P. demades with that of its host was noticed. No adults of the endo-parasitoid were registered except for the host activity period. Percent appearance of the endo-parasitoid reached up to 77.9 & 65.5% for 2013 & 2014 in April, respectively. During the study, the percent of endo-parasitoid diapause reached 100% during the host diapause period. The dissection of host larvae has proved that there were endo-parasitoid ' s larvae inside the second larval stage of the host larvae at diapause stage, lasting for early activity of the host. This relationship between endo-parasitoid ' s larvae & host's larvae during the activity period was clear. The development of olive leaf midge's population and the endoparasitoid was studied per month in samples under field conditions.

Keywords

Olive Leaf Midge, Dasineura oleae , Synchronization ,Syrian Coast

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