Four Egyptian matze cult.vars: SWeet grain sorghum., Ihre.e way cross 321. Giza 2 and Single cross 10-planleo in two different dates were tested lor the;r
susceptibility to post harvest insect InCestation. Two insect genera were only detected,
Silo/roga cereetelte Oliv. (Lepidoptera: Oetechlldae) and $Jlophilus zeemsis Motsch
(Coleoptera: Curcullonidae) The variety Giza 2 was the least cultivar attacked by insects considering the
lotal number of emerged adults of both insect species, 801~I, difference In weight loss
01 intested grains and percentage of grain viability. in the four cultivars considered,
were found slgniflcanl Based on the susceptibility Indices (St), the four cullivars \vere
ascendlngly f!rranged as Giza 2, Single cross 10, Sweet grain sorghum and the more
susceotible one Three way cross 321. SOS-protein etectroohoresis aoalvsts proved
that each cultivar had an unique band (UB) which coutc be used as a biochemicol
rnerxsr 10 discriminate among them.