The relation between microhabitat conditions and relative flea density in houses of an Egyptian village. Toxicological evaluation and biochemical impacts for radiant as a new generation of spinosyn on Spodoptera littoralis ( Boisd.) larvae. Effect of Bacillus thuringansis var kurstaki on some biochemical parameters of the cotton leaf worm Spodoptera littoralis (Biosd) Effect of Bacillus thuringansis var kurstaki at Lc30 on haemolymph volume and density, total and differential haemocyte counts of larval haemolymph of Spodoptera littoralis (Biosd) Toxicological and biological studies on the effect of Bacillus thuringansis var kurstaki on the cotton leafworm Spodoptera littoralis (Biosd) Climatic factors influencing the abundance of Phlebotomus papatasi (Scolpi) (Diptera –Psychodidae) in the Nile Delta) Toxicological and biochemical studies of Methylamine Avermactine, a new type of bioinsecticide against the cotton leafworm Toxicity and biochemical efficacy of six Essential oils against tribolium confusum (du val ) (coleoptera: tenebrionidae) Comparative Evaluation of Five Oil-Resin Plant Extracts against The Mosquito Larvae, Culex pipiens Say (Diptera: Culicidae) Attractiveness of certain popular food products to the German cockroach, Blattella germanica, adults under field conditions Improving the efficiency of two local baits used for the control of the German cockroach, Blattella germanica (L.),(Dictyoptera: Blattellidae)