Population Dynamics of Fruit Fly Bactrocera Cucurbitae (Coquillett) of Cucurbits

This study is on the population dynamics of fruit fly Bactrocera Cucurbitae (Coq.). Significant variation in its incidence was observed during 2016–2018. It was not present during 48^th to 52^nd standard meteorological week (SMW) in 2017 and 49^th, 52^nd and 1^st to 3^rd SMW in 2018. There were peaks during 33^rd (2016), 33^rd and 36^th (2017) and 8^th SMW (2018). The incidence was less during 42^nd to 12^th SMW and was moderate to high during other SMWs with few exceptions. Significant positive correlation was observed with maximum (r = 0.63) and minimum temperature (r = 0.82), and rainfall (r = 0.69). The maximum temperature led to 39.4% variation and it was 67.1% with minimum temperature and 47.3% with rainfall.