The investigation was carried out to study the influence of three varieties of cucumber plant (F1 hybrid Myadine , F1 hybrid Hayal and F1 hybrid Reda) on the population dynamics of aphids, leafhoppers and whitefly insects .The obtained results showed pronounced differences in the population dynamics of these insects on the tested plant varieties. Chemical analysis results recorded a positive relationship between protein ,carbohydrate contents and aforementioned insects infestation in all varieties. While, a reserve relationship was recorded between pH values and insects infestation. According to these results the resistant varieties can be recommended in the integrated pest management programs for depressing all tested piercing - sucking insects on cucumber plants.