The Egyptian fruits are attacked by two of the most harmful 
tephritid pests, the peach fruit fly, Bactrocera zonata (Saunders), and the 
Mediterranean fruit fly, Ceratitis capitata (Wiedmann) causing 
considerable damage.Throughout the 
two studied seasons, the trapped males of B. zonata were negatively and 
insignificantly correlated with both of maximum and minimum 
temperatures, while, the relative humidity % affected positively 
insignificantly and positively significantly on B. zonata males activity 
during 2016 and 2017, respectively.On the other side, C. capitata
trapped males were significantly and negatively correlated with 
maximum and minimum temperatures, while, relative humidity reflected 
a significant positive correlation with the population of the fruit fly.Concerning the 2nd
season(2017), the highest mean percentage of fig fruits was recorded 
during the 1st week of September with a mean of 5.42% occurring by B. 
zonata females, while, C. capitata infestation on fig fruits was observed 
firstly during the 2nd week of October and continued until the 2nd week 
of December coinciding with end of fig fruits harvesting.In Fayoum governorate, fig trees are cultivated in 
condensed plantations to produce their fruits in two overlapped crops per 
year from July till December.