A field study was carried out on the population dynamics of the Mediterranean fruit fly
(MFF) Ceratitis capitata Wied. males in Assuit governorates (upper Egypt) during 2011/2012 and
2012/2013 seasons in mixed orchards by using Jakson trap. The obtained data revealed that the
occurrence of MFF was relatively all over the two seasons with some exceptions. The abundance of
the pest was higher in the second season than that in the first one. The higher appearance of the pest
was recorded on September-November in both first and second seasons. Temperature had significant
negative correlation (r=-0.105) in the first season and insignificant negative correlation (r=-0.076) in
the first and second seasons, respectively. However, R.H.% had high significant positive (r=0.451)
and insignificant positive (r=0.203) in the first and second seasons, respectively. Results obtained
could be exploited in management of this insect pest especially, in the control programs.