Integrated Pest Management (IPM) Strategies for the Management of Linseed Bud Fly (Dasyneura lini Barnes) on Linseed Crop

Abstract

Population dynamics, an essential component within the field of population ecology, involves examining the factors that drive fluctuations in population sizes. Variations in seasonal weather patterns and ongoing changes in climate directly influence the adaptations and evolution of insect species. The present study determines the Integrated Pest Management (IPM) strategies for the management of linseed bud fly (Dasyneura lini Barnes).  The investigation was conducted at the College of Agriculture, Raipur (C.G.) to study on IPM strategies against linseed bud fly.  Keeping in view the severity of linseed bud-fly and harmful effect of insecticides it was felt to control this pest by cultural practices involving two date of sowing (25th November and 10th December), two agronomic practices i.e. farmer’s practices (broadcast of old variety Neelum) and improved practices (line sowing) of new improved variety RLC-143 and four protection levels so that the crop may be saved from the damage caused by the pest. As per data recorded during the experiment, minimum budfly infestation was found in line showing with RLC 143, which is 25.05% and 25.06% in both years 2020-2021 and 2021-2022, respectively. In the sowing schedule during the year 2020 - 2021 minimum budfly infestation was recorded on first date of sowing (25 November), which was 21.68% and during year 2021 - 2022 minimum budfly infestation was recorded in second date of sowing (10 December), which was 23.72%. In the interaction effect of protection levels and agronomic practices, the lowest budfly infestation was observed in third protection level with second method of sowing which was 9.45% in 2020-2021 and 9.58% in 2021-2022. In the interaction effect of sowing schedule and protection levels, the minimum budfly infestation was recorded in third protection level with first date of sowing which was 7.96% in 2020-2021 and 8.03% in 2021-2022. In the combined interaction effect of agronomic practices, showing schedule and protection levels, the lowest budfly infestation was recorded with the second method of sowing, which is line sowing with the first date of sowing (25th November) and the third protection level, which was 16.01%.