الفهرس 
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Abstract
The present study revealed that, the most dominant piercing sucking pests were recorded on cucumber during during Autumn and Spring plantations throughout the three suceessive years of the study in sohag region were B .tabaci, A. gossypii, T. Tabaci, E. decipiens and T. urticae.
Program 1 which consisted of three non-chemical pesticides (Sortem, Bio-sect and Berna star) was the least effective program in reducing the overall meanreduction (%) of tested pests.
In contrast, program 2 which includes three chemical pesticides (Planch, Oberon and Applaud) was the most effective one.
However, the overall mean % of program 4 which consisted of two chemical plus one non-chemical pesticides and program 3 which includes one chemical pesticide and two non –chemical pesticides gave also reasonable overall mean reduction (%) which are not far from that of chemical Program 2.
The same trend was achieved by spider mite control programs. Program B (completely chemical) was the most effective one followed by Program D (two chemicals plus one non-chemical), Program C (two non-chemicals plus one chemical) and Program A (completely non-chemical).
The economic impact of these control programs was reflected positively on the yield of cucumber.
So, it can be suggested that the control programs of sucking pests (insects and spider mites) on cucumber plants in Sohag region can be partially inlayed with non-chemical pesticides in order to reduce the intensive use of chemical pesticides.