PREPARATION OF SOME SURFACE ACTIVE AGENTS AND DETERMINATION OF ITS PHYSICO CHEMICAL PROPERTIES

SEASONAL ABUNDANCE OF THE POMEGRANATE WHITEFLY, Siphoninus phillyreae (HALIDAY)( HOMOPTERA : ALEYRODIDAE) AND ITS NATURAL ' ENEMIES POPULATIONS 0N OLIVE TREES IN EGYPT

CHEMICAL COMPOSITION AND ANTIBACTERIAL ACTIVITY OF HONEYBEE GLUE (PROPOLIS) COLLECTED FROM EGYPT AND SYRIA .

BIOLOGICAL CONTROL OF Meloidogyne javanica ON TOMATO PLANTS WITH SOME ISOLATED BIOAGENTS IN EGYPT