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VOL. 11, ISSUE 3 (2026)
Population dynamics of fruit fly (Bactrocera spp.) in guava orchard and identification of critical management periods based on weather correlation
Authors
Mo Jakir Husain, Vinod Kumar, Umesh Chandra, Pradeep Kumar Dalal, Mohd Yahya, Aavesh Yadav, Anupam Chaubey, Naresh Kumar
Abstract
A field study was conducted during 2025–26 in
guava (Psidium guajava L.) orchards at Acharya Narendra Deva University
of Agriculture and Technology (ANDUAT), Kumarganj, Ayodhya, district is
geographically located between 26.47° North latitude and 82.12° East longitude,
at an elevation of about 113 meters above sea level, within the Gangetic
alluvial plains of eastern Uttar Pradesh, India. To investigate the population
dynamics of fruit flies (Bactrocera spp.) in relation to different
seasons and weather parameters. Monitoring was conducted using methyl eugenol
bait traps (ethanol + methyl eugenol + Spinosad 45 SC), with weekly trap
catches recorded across summer, monsoon, and winter seasons. Results revealed
that Bactrocera spp. remained active year-round but exhibited distinct
seasonal peaks. The highest population was observed during the monsoon season
(maximum 342 flies/trap/week in early July), followed by moderate activity in
summer (peak 81.67 flies/trap/week in late March), while winter recorded the
lowest incidence (2.33–87.33 flies/trap/week). Correlation analysis indicated
that temperature was the most critical abiotic factor, showing positive associations
in monsoon and winter, whereas rainfall consistently suppressed adult activity
across seasons. The study concludes that early monsoon and late summer
represent the most vulnerable periods for guava orchards, necessitating timely
adoption of integrated pest management (IPM) strategies such as trap-based
monitoring, orchard sanitation, and bait application to minimize fruit damage
and economic losses.
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Pages:512-517
How to cite this article:
Mo Jakir Husain, Vinod Kumar, Umesh Chandra, Pradeep Kumar Dalal, Mohd Yahya, Aavesh Yadav, Anupam Chaubey, Naresh Kumar "Population dynamics of fruit fly (<i>Bactrocera</i> spp.) in guava orchard and identification of critical management periods based on weather correlation". International Journal of Entomology Research, Vol 11, Issue 3, 2026, Pages 512-517
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