Field  experiments  were  conducted  to  estimate  the  susceptibility  of eight  sweet  pepper  cultivars, i.e.  Bella  yellow, Bella red,  Jumbo yellow and  Roxy red  at Giza governorate  and  Carmen  yellow,  Toranto  yellow, Inspition  red and  Blocky  red  at  Behera  governorate  to  infestation  with Tetranychus urticae Koch, Thrips  tabaci  Lind and Aphis  gosspii  Glover.  Their  population  fluctuations  during  the  two  successive  seasons,  (2008/9)  and  (2009/10)  at Giza and  Behera gorvrnorte,  revealed  that  Roxy  red  cultivar  was  the  most  highly  susceptible  to T.  urticae infestation recording  averages of  131.5  and  162.4  mite  moving stages/leaf,  while Jumbo  yellow  cultivar  was the most highly susceptible to  aphis and  thrips  recording  averages  of  161.15  and 114.39  Aphis  gossypii  and 75.78 and 92.00 Thrips tabaci  L. during the  two  successive seasons  respectively  at Giza  governorate.