MORPHOMETRIC DETECTION OF DIFFERENT FRUIT FLY COLLECTED FROM DIFFERENT MANGO GROWING REGIONS OF BANGLADESH

Abstract

The experiment was conducted at the farmer’s orchard of Dinajpur and Thakurgaon districts during the period from April to June 2020 for morphometric detection of mango fruit fly collected from different mango growing regions of Bangladesh. Five locations of Dinajpur and Thakurgaon districts was selected and surveyed for collection of Mango fruit fly. The samples were used in detecting the morphometric similarities/dissimilarities at the Entomology Laboratory of Sher-e-Bangla Agricultural University for further testing. The location for collection of the samples in Dinajpur were Biral, Bochagonj, Kaharole, Fulbari and Khanshama and in Thakurgaon were Sadar, Pirganj, Ranisankail, Baliadangi and Haripur. Data were collected on wing, head, thorax and abdomen of fruit flies and further study was ensured. The fruit fly samples were collected at different location of Dinajpur and Thakurgaon districts of Bangladesh using pheromone trap (methyl-eugenol) at mango field. Four different species were identified using stereomicroscope. The name of the fruit flies were Oriental fruit fly (Bactrocera dorsalis), melon fruit fly (Zeugodacus cucurbitae), pumpkin fruit fly (Zeugodacus tau) and peach fruit fly (Bactrocera zonata). 85.41% of oriental fruit flies were found in pheromone trap which was the highest number of fruit fly in mango field. However, 2.44 % of peach fruit fly were identified which was the lowest number. Moreover, 8.81% and 3.34% percent of melon fruit fly and pumpkin fruit fly were collected from pheromone trap respectively. Therefore, numbers of oriental fruit fly were highest compare to other fruit fly. The highest infestations were observed at Dinajpur district compared to Thakurgaon district in mango orchard. Dinajpur district Oriental fruit fly was larger compare to Thakurgaon district Oriental fruit flies were smaller. Therefore, Dinajpur district Melon fruit fly was prominent compare to other district and melon fruit fly were larger compare to Oriental fruit fly.