Helmy Ali Zedan
Affiliation Plant Protection Research Institute (PPRI)
Department Animal Pests
Research Field Plant Protection(Mollusca)
Agrovoc Herbicides - Rodent control - Snails
Contacts
E-mail address zedan14sep@hotmail.com
URL www.pprieg.com
Work Telephones 027486163
0502376676
Scientific Progress
Chief Researcher in Plant Protection Research Institute (PPRI) [14/09/2005]
Senior Researcher in Plant Protection Research Institute (PPRI) [01/01/2000]
Researcher in Plant Protection Research Institute (PPRI) [01/01/1995]
Publications
Journal:
 - Phytochemical and toxicological effect of certain plant extracts against potato tuber moth, Phthorimaea operculella and green peach aphid, Myzus persicae (2008)
- Damage assessment caused by rodent to certain crops in Dakahlia governorate. (2007)
- Effect of some plant extracts and its binary mixtures with chlorpyrifos against 2nd instars larvae of cotton leaf worm spodoptera littoralis (BOISD) under laboratory conditions (2007)
- Biological control of Pectinophora gossypiella (Saund.) and Earias insulana (Boisd.) ín Cotton fields at Dakahlia governorate, Egypt by augmentative releases of Trichogramma evanescens westwood (2007)
- Assessement of molluscicidal activity of certain pesticides against two land snails under laboratory and field circumstances at Dakahlia Governorate. (2006)
- Assessment of molluscicidal activity of certain pesticides against two land snails under laboratory and field circumstances at Dakahlia Governorate. (2006)
- Assesment of molluscicidal activity of certain pesticides against two land snails under laboratory and field circumstances laboratory and at dakahia governorate. (2006)
- The relation between some piercing sneking insects and their associated predators population cotton plants at Dakohlia governorate (2005)
- Survey, Damage and losses caused by land snails on certain crops at Dakahlia, Sharkia and Demiatta Governorates. (2005)
- Survey, damage and losses caused by land snails on certain crops at Dakahlia, Sharkia and Demiatta Governorates (2005)
- The relation between some pvercing suking insects and their associated predators populations on cotton plants at dakahlia governorate. (2005)
Conference/Workshop:
 - Effect of certain ecological factors on some biological aspects of the grey garden slugs deroceras reticulatum (muller) under laboratory conditions (2002)
- Ecological studies on certain Land Snails in Monofia and Gharbia Governorates (2002)
- Notes on the morphology and taxonomy of some economic Egyptian Gastropods (2002)
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