Ashraf Helmi

ashraf_helm@agr.asu.edu.eg
Department of Plant Protection - Agriculture
Interests: Entomology, Taxonomy, Identification, Classification, Fingerprinting, Barcoding, Aleyrodidae, Aphididae,
Internal ID: rp13191
Network Lab View Statistics Email Alert RSS Feed

Profile

Loading... 2 0 20 0 false
 
Full Name
Ashraf Helmi
 
Affiliation (Department)
 
Personal Site
 
Other emails
 
ORCID
 
Scopus Author ID
 

Publications

Results 1-20 of 35 (Search time: 0.0 seconds).

Issue DateTitleAuthor(s)
12022Biological aspects, lower developmental threshold and thermal requirements of Cotton seed bug, Oxycarenus hyalinipennis (Costa)El-Taher A. Sh.; M. S. Abdel-Wahed; Ashraf Helmi ; H. F. Dahi
21-Sep-2020Identification of some Egyptian leafhopper species (Hemiptera: Cicadellidae) using DNA barcodingIbrahim, Heba E.; Ashraf Helmi ; Sharaf, Abdoallah ; Emam, Azza 
32019Aphids on Medicinal and Aromatic Plants in Egypt (Hemiptera: Aphididae).Ashraf Helmi ; Mahmoud E. R.; Dahroug S M A; M. Hewidy
42019Some ecological aspects on the Mango Shield Scale, Milviscutulus mangiferae (Green) (Hemiptera: Coccidae) on Laurus nobilis L. trees at Giza, Egypt. Egypt Acad.A. Helmi ; Abbas, A. A. E.; G. H. Mohamed; N. A. Abd-El Hamed; A. A. Tharwat
52019Aphids on Medicinal and Aromatic Plants in Egypt (Hemiptera: Aphididae). J.A. Helmi ; Mahmoud E. R.; Dahroug S M A; M. Hewidy
62018Survey 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
72017Repellency Effect of Some Biochemical Extracts of Castor Bean Leaf on Two Sap-Sucking Insect Pests.Ashraf Helmi ; Attia, A. sahar
82017Identification And Quantification Of Allelochemicals Contain In Certain Tomato Cultivars By GC- MS TechniqueA.K. sobeiha ; Ashraf Helmi ; A. Helmi; K. W. Mahmoud
91-Nov-2016Genetic differentiating Aphis fabae and Aphis craccivora (Hemiptera: Sternorranycha: Aphididae) populations in Egypt using mitochondrial COIAshraf Helmi ; Sharaf, Abdoallah 
101-Mar-2016Biochemical and Ultrastructural Changes of Some Tomato Cultivars after Infestation with Aphis gossypii Glover (Hemiptera: Aphididae) at Qalyubiyah, EgyptAshraf Helmi ; Mohamed, Heba Ibrahim
112016Threshold of Development and Thermal Constant for Different Stages of the Seychelles Fluted scale, Icerya seychellarum (Westwood).Ashraf Helmi 
122016Susceptibility of certain tomato cultivars to infestation with Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in relation to leaflet trichomes. Egypt.Darbain, S; Azza, K. Emam; Ashraf Helmi ; Sami S. El- Badawy; S. Moussa
132016Fingerprinting of Leafhoppers on Medicinal and Aromatic Plants in Egypt Using ISSRs.Ashraf Helmi ; A. Sharaf; E. Heba
142016Susceptibility 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
152015Survey of leafhoppers on medicinal and aromatic plants in Egypt (Hemiptera: Auchenorrhyncha: Cicadellidae).A. Helmi ; Ibrahim, E. Heba; Azza, K. Emam; M. A. Ahmed
162015Population 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
17Jun-2013EFFECT OF WHEAT CULTIVARS AND SOWN DATES ON APHID INFESTATION IN EGYPTAshraf Helmi ; Rashwan, Rania 
182013Bionomic and life table parameters of olive psyllid, Euphyllura straminea on olive seedlings under three constant temperatures.Ashraf Helmi ; Amin, A. H.; E. A. El-Wan; A. S. Youssef
192013Inducing Resistance in Olive Seedlings against Olive Psyllid, Euphyllura straminea Using Natural Phenol Compound.A. Helmi ; Amin A. H.; A. S. Youssef
202013Effect of wheat cultivars and sown dates on aphids infestation un Egypt.A. Helmi ; R. Rashwan