الفهرس 
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Abstract
Sythetic pyrethroids are attractive as agricultural and commerical insecticides as they possess a low toxicity to mammals when compared with their high toxicity to insects.
<They are classified as being either type 1 or type 2 based on the symptoms produced by acutely toxic doses.
<Biochemical And Toxicological Aspects Of Pyrethroid Insecticides
<Type 1 poisoning syndrome produced bypyrethroids without cyano subtituent , type 2 poisoning produced by pyrethroids with an cyno substituent cypermethrin.