author(s)
DR Patel, JJ Patel, DV Muchhadiya and RB Patel

abstract
The investigations on the seasonal incidence of mango fruit fly, Bactrocera dorsalis (Hendel) was carried out at the mango orchard, College of Agriculture, N.A.U., Bharuch during 2012-13 to 2014-15. The three year pooled data revealed that the fruit fly, Bactrocera dorsalis was active throughout the year on the mango orchard. The fruit fly population fluctuates at various time interval and range between 4.47 to 128.60 fruit flies per trap with maximum catches (128.60 fruit flies/trap) recorded in 28^th standard meteorological week (SMW) i.e. 9^th to 15^th July, while minimum catches (4.47 fruit flies/trap) recorded in 3^rd standard meteorological week (SMW) i.e. 15^th to 21^st January. The pooled analysis of all the three years showed that significant positive correlation was observed between minimum temperature, morning relative humidity, evening relative humidity, wind velocity and rainfall with fruit fly population while, it had significant negative correlation with sunshine hours.