Studies on the Incidence and Persistence of Major Insect Pests of Soybean and their Bio-control Agents in Soybean Ecosystem

Main Article Content

Nabani Datta
Gopal Das
https://orcid.org/0000-0002-7731-7159

Abstract

An experiment was conducted at Entomology field laboratory, Bangladesh Agricultural University, Mymensingh during the rabi season of 2018-19 to investigate the abundances and population dynamics of major insect pests of soybean in soybean ecosystem. In this present study, a total of twelve insect pests and five beneficial arthropods were identified from seedling to pod maturity stages. Among the insect pests, five were identified as major namely jassids, whitefly, leaf beetle, grasshopper and soybean leaf roller. The rest of the seven insects were considered as minor based on the population densities and extent of damage. Five beneficial arthropods were recorded namely ladybird beetle, lynx spiders, wolf spiders, carabid beetle and green mirid bug. Among the insect pests, jassid, whitefly and leaf beetles were mainly appeared at the vegetative stage to flowering stage, grasshopper from vegetative to mid of pod formation stage and soybean leaf roller was found to be consistent from vegetative to pod maturity stage. Population incidence was observed from the mid of January to mid of March with some fluctuations but the maximum was observed in the month of February.

Keywords:
Incidence, persistence, soybean, bio-control, ecosystem.

Article Details

How to Cite
Datta, N., & Das, G. (2021). Studies on the Incidence and Persistence of Major Insect Pests of Soybean and their Bio-control Agents in Soybean Ecosystem. Asian Journal of Research in Biosciences, 3(1), 8-14. Retrieved from https://globalpresshub.com/index.php/AJORIB/article/view/967
Section
Original Research Article

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