Vol. 9, Issue 12, Part C (2025)

The seasonal dynamics of Anomala lineatopennis were investigated across the mid and high hills of Himachal Pradesh to elucidate population trends and emergence patterns relative to altitudinal gradients. This study aimed to determine abundance fluctuations and peak activity periods to inform pest surveillance protocols amidst varying climatic influences. Sampling conducted from March to September 2023, utilizing a combination of light traps and manual collection methods, revealed a significant unimodal distribution of beetle populations driven by location-specific environmental factors. Peak abundance was recorded in May at mid-hill locations, with counts reaching 491 beetles at Seobag and 375 at Palampur, followed by a marked decline to 39 and 36 beetles, respectively, by July. Conversely, the high-hill region of Janjeheli exhibited a distinct temporal delay, with peak activity occurring in July with 351 beetles, underscoring the critical impact of altitude on life cycle synchronization. These findings identify A. lineatopennis as a significant pest in temperate agro-ecosystems, particularly within fruit orchards, where emergence patterns necessitate targeted monitoring. The established temporal variation provides a scientific basis for optimizing integrated pest management strategies, allowing for precise, timely interventions that align with peak pest pressure to effectively reduce crop damage.