الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The l e s s e r grain borer beetle, Rhizowertha
dominica E’abricius, is the most voracious and
destructive pest of twenty kinds of grains and t h e i r
products, most frequently on wheat, barely and r i c e .
It is also noted damaging onion bulbs, the wood of
post8 i n s t o r e houses (Asanov, 1970).
The continued massive and indiscriminate use of
p e s t i c i d e s has a l w a y s been accompained by adverse
e f f e c t s created a multitude of problems. Among these
a r e , p e s t i c i d e residue, development of resistance to
i n s e c t i c i d e , toxic hazards to rmn and animals and
disruption of natural balance between the insect
pests and t h e i r nhtural enemies.
The research e f f o r t s gave b i r t h to number of
new approtlches to combat i n s e c t s i n f e s t i n g stored
nroducts. Among these approaches is the so-called
s t e r i l i z a t i o n by i r r a d i a t i o n . However, t h e r e a r e many
problems asaociated with the use of t h i s method on
large scale np?lication. One of these problems is
to determine tha nin~mum dosage of r a d i a t i o n needed
to control the t a r g e t i n s e c t and a t the same time