الفهرس 
المقدمهOnly 14 pages are availabe for public view
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Abstract
In Egyptian food stuffs, potato and sweet pepper
ere two of the most important vegetable crops. During
their agricultural production, ethylene bis (dithiocarbamate)
fungicides (•EBDC’s), such as Dithane M-45,
Mancoper and Tri-Meltox Fort are being use for controlling
of fungal diseases, early blight Alternaria solani
and late blight Phytophthora infestans in potato, and
powdery mildew Levillula taurica in sweet pepper, under
~ normal field and under plastic tunnels protection conditions.
The production of sweet pepper under plastic
t unnels protection conditions has become possible during
winter using cheap technology. This technique has been
started in Egypt a few years ago.
In the environment EBDC’s fungicides are u nstable
during their manufacturing , formulations, and storage
in the presence of heat, moisture and oxygen as well as
in treated biological systems. By splitting of carbon
disulfide and hydrogen sulphide as well as oxidetive degredat
•ion reaction, the formation of a great number of
products are produced, most important one among them, is
ethylenethiourea , ETU. On the other hand, t he base catalyzed
degradation of EBDC-fungicides to ETU during processing
of f oods involving heat has been a matter of concern
i n recent years.