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

© 2015 by SSRG - IJAES Journal

Volume 2 Issue 3

Year of Publication : 2015

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

10.14445/23942568/IJAES-V2I3P101

How to Cite?

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)," SSRG 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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