الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
1- INTRODUCTION
The challenge of pests to humans during the last 30 years
led to the introduction of different group~ of pesticides into
the environment. The fact that the resistance of insects to
pesticides arose by recurrent treatment of insects throughout
several generations by the same insecticide is well
acknowledged. This led to the introduction of more effective
pesticides in plant protection programs and ag~istman natural
enemies. Subsequently more poisonous insecticides have been
introduced into the environment. The widespread use and
sometimes the abuse of pesticides and other agrochemicals in
agriculture in Egypt, might be posing a threat to the differ•nt
biological systems including humans~ plants and animals. Sine•
it is now well established that most of the mutagens proved to
be also carcinogens it is therefore, worthwhile to care about
the genetic hazards of pesticides and comparing the anticipated
mutagenic potentialities. In ather words, determin1ng whether a
proper chemical can cause an abrupt heritable change in the
composition or arrangement of genes. It is evident that same
pesticides can induce gene mutations and chromosomal
similar to mutagenic agents <Garrett et al., 1986).
aberrations
In spite of
that, pesticides are still widely used and many neN forms of the
different groups Ci.e. organophosphorus, pyrethroid,
benzocy~zol, carbamates and chlorinated hydrocarbons) are
~nnu~lly producwd. This can be attributed to the fact that the
applic~tion of pesticides is still the most economical effective
way for controlling plant pest•.
Although the trend toward the ~afar use of pesticide~ and
concern for public health beg•n in the twenties of this century,
but the interest in the anticipated mutagenic potentialities of
pasticides grown up actually during the last two decades. The
mode of action and subsequently the specificity of each