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# عنوان البحث سنة البحث
891 Potential use of “propolis” to control white rot disease of onion 1989
892 Relationship between the structure of O-(methylcarbamoyl) oxime compounds and their activity as acetylcholinesterase inhibitors 1989
893 Relationship between the structure of O-(methylcarbamoyl) oxime compounds and their activity as acetylcholinesterase inhibitors 1989
894 Selective toxicity and development of insecticide resistance in Spodoptera littoralis (Boisd.) and Coccinella undecimpunctata L. in Upper Egypt 1989
895 Study of the effect of some calcium channel blockers and anticonvulsants on the toxicity of chlorpyrifos 1989
896 The activity of virus vector aphids on cucumbers 1989
897 The protein quality of bee bread stored in honeybee colonies during active season in Assiut area 1989
898 Thermal requirements of the various developmental stages of the spiny bollworm Earias insulana Boisd. (Lepidoptera: Noctuidae) 1989
899 Thermal requirements of the various developmental stages of the spiny bollworm Earias insulana Boisd. (Lepidoptera: Noctuidae) 1989
900 Thermal requirements of the various developmental stages of the spiny bollworm Earias insulana Boisd. (Lepidoptera: Noctuidae) 1989