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)
Accepted: 26/2/2024 received: 3/12/2023
Abstract:
A field study of the Humera insect was conducted in the AL-Jalaa palm Oasis in the Al-Bukamal area in Deir –Ezzor Governorate during the years 2021 and 2022 AD. It was found through the field study that Majhool variety was the most sensitive palm variety to the infection with the Humera insect, as the percentage of fruit infection reached 88.9 % and 78 % in the 2021 and 2022 seasons, respectively. While the Barhi variety was the least variety infected with the mite insect, as the percentage of Fruits infected was 47.5 % and 51% in the 2021 and 2022 seasons, respectively. The average severity of the infestation of bunches of date trees with the Humera insect was different among the four studied varieties, and the highest infestation bunches was in Majhool variety , where the percentage reached 70.5 % While the Barhi variety was the least infested by the bug , where the percentage reached 16.6 % in the 2021-2022 seasons. The anthracite stage was the most sensitive phonological stage of the Fruit to infection by the sommelier insect in the studied palm varieties .The percentage of loss in the date palm crop in 2022 decreased compared to the date crop in 2021 for all date palm varieties studied.
Key words: palm tree, Humera insect, incidence rate, severity of injury. Studied palm varieties,
Full paper in Arabic: PDF