تقويم ضرر بسيلا الزيتون Euphyllura straminea Loginova (Homoptera : Aphalaridae) في سورية
Other Title(s)
Evaluation of damage caused by olive psylla Euphyllura straminea Loginova (Homoptera : Aphalaridae) in Syria
Joint Authors
حمودي، عمر ناجي
أبو كف، نبيل حسن
Source
Issue
Vol. 17, Issue 2 (31 Dec. 1999), pp.71-76, 6 p.
Publisher
Arab Society for Plant Protection
Publication Date
1999-12-31
Country of Publication
Lebanon
No. of Pages
6
Main Subjects
Abstract EN
This research was conducted to evaluate the damage caused by olive psylla on the olive varieties “surani”, “khalkhalie” and“khuderi” in three Syrian provinces: idleb, tartus and lattakia (jableh).
the effects of olive psylla on flower set and on the average number of flowers per clusters were significant, and most damage was caused by the 4th and 5th instar nymphs.
the actual loss of flower clusters was33.25% (16 olive fruits, per 100 remained clusters, when the average number of nymphs was 6.61 per cluster).
this study showed obvious differences among the three olive varieties in the three locations studied, based on the correlation coefficient between the percentage loss of flower clusters and the average number of nymphs per cluster.
the correlation coefficient between the number of olive fruits per 100 remained clusters and the number of nymphs per cluster was also determined.
American Psychological Association (APA)
أبو كف، نبيل حسن وحمودي، عمر ناجي. 1999. تقويم ضرر بسيلا الزيتون Euphyllura straminea Loginova (Homoptera : Aphalaridae) في سورية. مجلة وقاية النبات العربية،مج. 17، ع. 2، ص ص. 71-76.
https://search.emarefa.net/detail/BIM-968557
Modern Language Association (MLA)
أبو كف، نبيل حسن وحمودي، عمر ناجي. تقويم ضرر بسيلا الزيتون Euphyllura straminea Loginova (Homoptera : Aphalaridae) في سورية. مجلة وقاية النبات العربية مج. 17، ع. 2 (كانون الأول 1999)، ص ص. 71-76.
https://search.emarefa.net/detail/BIM-968557
American Medical Association (AMA)
أبو كف، نبيل حسن وحمودي، عمر ناجي. تقويم ضرر بسيلا الزيتون Euphyllura straminea Loginova (Homoptera : Aphalaridae) في سورية. مجلة وقاية النبات العربية. 1999. مج. 17، ع. 2، ص ص. 71-76.
https://search.emarefa.net/detail/BIM-968557
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 76
Record ID
BIM-968557