Subscribe to this collection to receive daily e-mail notification of new additions

Issue Date	Title	Author(s)
2011	Field Evaluation Of Some Insecticides Against Olive Psyllid, Euphyllura Straminea On Olive Trees In Ismailia Governorate (Homoptera: Psylloidea, Aphalaridae). Egypt.	A. Helmi ; Youssef, A. S.; Amin A.H. ; E. A. Elwan
2011	Population dynamics and control of Bemisia tabaci (Genn.) on some vegetable plants under protected cultivation at Giza Governorate.	A Helmi ; Esmail-Samar, S.; S. El-Refai; F. A. Aly
2011	Molecular fingerprinting of eleven cereal aphids in Egypt (Hemiptera: Sternorrhyncha: Aphididae) using RAPD and ISSRs markers.	A Helmi ; A. F. Khafaga
2011	Host plants-Associated population variations of Bemisia tabaci (Genn.) (Hemiptera: Sternorrhyncha: Aleyrodidae) characterized with Random DNA Markers.	A Helmi
2010	Isozymes electrophoretic variations among hosts and localities populations of Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) in Egypt.	A Helmi
2009	Influence of three sap-sucking insect pests' infestations on essential oil of sweet marjoram (Origanum majorana L.).	A Helmi ; Amaar-Mona. I; K. Emam-Azza; M. F. A. H. Hegab; M. A. Sidky Mahassen
2009	Genetic fingerprint of fifteen whitefly species in Egypt. (Hemiptera: Aleyrodidae).	Ashraf Helmi ; Amin, A. H.; Azza K. Emam
2009	Identification of apterous viviparous of cereal aphids in Egypt (Hemiptera: Sternorrhyncha: Aphididae).	A Helmi ; M. M. El Fatih
2008	Ecological Studies on Sugar beet Insects at Kafr El- Sheikh Governorate, Egypt.	A Helmi ; Amin, A. H.; S. A. El-Serwy
2006	Variations among populations of Bemisia tabaci (Genn.) in Egypt. (Hemiptera: St⁸ernorrhyncha: Aleyrodidae).	Ashraf Helmi ; Rashed, M. A; A. Abdel Bary-Abeer
2005	Some ecological aspects of two whitefly species infesting Arab Jasmine shrubs in Egypt. (Hemiptera: Sternorrhyncha: Alyrodidae).	A Helmi
2002	Ecological studies on the citrus whitefly Dialeurodes citri (Ashmead) [Hemiptera: Aleyrodidae].	Ashraf Helmi ; A. H. Amin; M. E. Foda; Azza, K. Emam
2015	Population fluctuations of Icerya seychellarum (Westwood) on mulberry trees in Egypt.	A Helmi ; A. Neama; A. Abd-Elhamed; G. H. Mohamed; A. A. E. Abbas; A. A. Tharwat
1997	Amin, A. H.; A. K. Emam and A. Helmi (1997). A species of the genus Aleurotuberculatus on citrus trees in Egypt.	A Helmi ; Amin A. H.; A. K. Emam; Aleyrodidar
1-Mar-2016	Biochemical and Ultrastructural Changes of Some Tomato Cultivars after Infestation with Aphis gossypii Glover (Hemiptera: Aphididae) at Qalyubiyah, Egypt	Ashraf Helmi ; Mohamed, Heba Ibrahim
1-Jun-2011	Molecular fingerprinting of certain cereal aphids in Egypt (Hemiptera: Sternorrhyncha: Aphididae) using RAPD and ISSRs markers	A Helmi ; Khafaga, A. F.
1-Jan-2011	Host-associated population variations of bemisia tabaci (genn.) (hemiptera: Sternorrhyncha: Aleyrodidae) characterized with random dna markers	Ashraf Helmi
2016	Susceptibility of certain tomato cultivars to infestation with Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in relation to leaflet trichomes.	Ashraf Helmi ; Darbain, S.; Azza, K. Emam; Sami S. El- Badawy; S. Moussa
2018	Survey of the Soft scale insects, Coccidae (Hemiptera: Coccoidea) and their parasitoids on some ornamental plants in Egypt.	Ashraf Helmi ; Abbas, A. A. E.; G. H. Mohamed and; N. A. Abd-El Hamed; A. A. Tharwat
2019	Aphids on Medicinal and Aromatic Plants in Egypt (Hemiptera: Aphididae).	Ashraf Helmi ; Mahmoud E. R.; Dahroug S M A; M. Hewidy