This study was carried out to evaluate efficiency sticky traps on attraction Trialeurodes vaporariorum (Westwood) (Homoptera: Aleyrodidae) on strawberry plants Fragaria ananassa (L.) (Three strawberry varieties i.e. Sweet charli, Chandler and Festival) under glasshouse conditions at two locations (governorates), Nobariya (Behera governorate) and Perkash (Giza governorate) during season 2019/2020. This study contains three experiments; the first experiment aimed to evaluate the efficiency color of the sticky trap on attraction T. vaporariorum throughout comparison between four colors (yellow, red, white and blue). Results showed that the traps which have yellow color more efficiency on attractive T. vaporariorum than others which have (blue, red, and white) color, respectively. Second experiment aimed to evaluation efficiency height of the yellow sticky trap on attraction T. vaporariorum through comparison between four heights (2m, 1.5m, 1m and 0.5m) above the ground. Results showed that the trap which have 2m height above the ground more efficiency on attractive T. vaporariorum than others which have (1.5m, 1m and 0.5m) heights, respectively. Third experiment aimed to evaluation efficiency orientation of the yellow sticky trap on attraction T. vaporariorum through comparison between four orientations (North, South, East and West). Results showed that had no clearly effect of the trap orientation on attraction T. vaporariorum.

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