International Journal for Asian Contemporary Research, 4(2): 62-69
Common cutworm (Spodoptera litura Fab.): The new emerging pest of Jute in Bangladesh
Received: 15 September, 2024 || Accepted: 18 October, 2024 || Published: 27 October, 2024
A B S T R A C T
Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae), known as the common cutworm, is a worldwide pest that causes severe damage to various crops and vegetables in Bangladesh. In this study, we investigated the abundance and incidence of S. litura in jute. The study was conducted in the experimental field of Bangladesh Jute Research Institute, Regional Station, Faridpur during the jute growing seasons in 2023 and 2024. Three different tosa jute varieties (BJRI tosa pat 8, BJRI tosa pat 9 and JRO-524, India) were used in this study. We recorded the incidence of S. litura on the crop as the percentage of plant and leaf infestation. The plant infestation ranged from 0.24 to 10.82 and 2.23 to 14.47 in 2023 and 2024, respectively. This insect was more prevalent from the last week of April to the first week of May, when the plant was 40 to 50 days old. The climatic factors, particularly temperature, relative humidity, and rainfall, played a pivotal role in the occurrence and existence of this pest on the jute crop. S. litura was significantly positively correlated with the maximum temperature. The information generated through this investigation could be useful for jute growers and researchers to advocate for management actions to keep this pest population below the economic injury level.
Keywords: Spodoptera litura, pest incidence, emerging pest and weather relationship.
Copyright information: Copyright © 2024 Author(s) retain the copyright of this article. This work is licensed under a Creative Commons Attribution 4.0 International License
To cite this article: Afroz, S., Noman, M.S., Islam, A., Majumder, M.S.I., Khan, M.T.A., Ghosh, R.K. and Islam, M.R.(2024). Common cutworm (Spodoptera litura Fab.): The new emerging pest of Jute in Bangladesh. International Journal for Asian Contemporary Research, 4 (2): 63-69.
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