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Plant Science Today (PST)

Research Articles

Vol. 13 No. sp1 (2026): Recent Advances in Agriculture

Optimization of fibre yield and pest management: Evaluating integrated pest management modules for disease and insect pest reduction in jute (Corchorus olitorius)

DOI
https://doi.org/10.14719/pst.11533
Submitted
30 August 2025
Published
05-03-2026

Abstract

The field experiments were conducted to optimize fiber yield and pest management to evaluate integrated pest management (IPM) strategies for jute (Corchorus olitorius) cultivation during 2020-2022. The study employed a split-plot design (SPD) with four replicates, testing two sowing methods (line sowing and broadcasting) and three treatment modules: chemical (T1), biological (T2) and untreated control (T3). The chemical module (T1) included seed treatment with Carbendazim 50WP, followed by sprays of Spiromesifen 240 SC, Tebucanazole and λ-cyhalothrin, whereas the biological module (T2) involved seed treatment with Trichoderma viride, soil drenching with Pseudomonas fluorescens and azadirachtin sprays. The results showed a significantly lower incidence of stem and root rot and reduced infestations of Bihar hairy caterpillar (BHC), semilooper and yellow mite in T1 compared to T2 and T3, with pest reduction ranging from 55 %  to over 75 % . The highest fiber yield (25.79 q ha-1) was recorded in T1.  Although line sowing had no significant effect on disease incidence, it did influence pest populations. The highest benefit-cost ratio (1.87) was observed in T1, compared to 1.43 in T3, highlighting the effectiveness of chemical treatments in maximizing yield and economic returns. The scoring of different pests and diseases revealed that 45-54 %  of the areas exceeded the 5 %  disease infestation level for root and shoot rot, while 75 %  experienced a high level of mite infestation. Regular monitoring and assessment of pest and disease levels in jute fields are crucial for effective management strategies. These findings emphasize the importance of integrating chemical and biological control methods for sustainable jute production.

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