Samer Al-Hassan Al-Amer ^(1)*

(1). Syrian Grain. Deir Ezzor. Syria

(*Corresponding author:   Samer Al-Hassan Al-amer, Email:  sa10.8.1978am@gmail.com. Phone: 0999384290)                           

Received: 29/8/2023                                      Accepted:7/2/2024

Abstract: 

The research was carried out in the Al-Jalaa palm oasis of the city of Al-Bukamal in Deir Ezzor governorate during the month of September of the year 2021AD until August of the year 2022 AD. A field study was conducted of the palm taste borer, Oryctes elegans, to determine the sensitivity of some palm cultivars / Brim , khstawy , Barhi , Zhdy , khdrawy , Barhi  / to infection with this pest. The results of the field survey showed the presence of five types of palm diggers in Al-Jalaa Oasis, which are Jebusaea hammerschmidti, Iranian Jebusaea persica, Oryctes elegans, Oryctes sinaicus, and Phonapta  frontales, and the predominant type was O. elegans.The types of diggers varied in their numerical density. The most common diggers of the genus Oryctes ssp in the oasis were the diggers of the genus Oryctes elegans, with their presence reaching 79%, while the percentage of the presence of Jebusaea persica. 12 %, while the type P. frontales was 9 %. The peak activity of Oryctes elegans, Jebusaea persica and P. frontales during July and August 2022 was 683 , 121 , 117 beetle in the three traps in the oasis.The Prim palm variety was the most sensitive variety to infection with the palm tree borer infestation, where the number of affected leaves per palm tree was 10.66 .the number of hotes ade by beetle larvae was 12.33 holes per palm tree . and the total average number of larvae per palm tree14. As for the Barhi variety .it was the least sensitive variety to beetle infestation. As the number of affected leaves per palm tree was 7 leaves. The number of larvae present per palm tree was 5 and the number of holes produced by the larvae was 2.33 per palm tree. There was a high correlation between the numbers of O. elegans larvae and the resulting holes, with a correlation coefficient of 0.98.

Keywords: palm taste borer, palm varieties, palm taste borer insect Oryctes. elegans.

Full paper in Arabic: PDF