Influence of weather parameters on mango fruit fly, Bactrocera dorsalis H.

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 28th standard meteorological week (SMW) i.e. 9th to 15th July, while minimum catches (4.47 fruit flies/trap) recorded in 3rd standard meteorological week (SMW) i.e. 15th to 21st 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.