Population Suppression of Amrasca Biguttula and Bemisia Tabaci in Okra via Insect Growth Regulators.
DOI:
https://doi.org/10.46568/bios.v7i1.201Keywords:
Okra, Jassid, Whitefly, Population, Insect Growth Regulators, Biological ControlAbstract
Okra, Abelmoschus esculentus (L.), is one of the essential vegetables significantly consumed and grown worldwide. However, production is highly deprived due to the infestation of the sucking complex, such as jassid and whitefly. Excessive pesticide residues on sold vegetables are harmful to people's health and the environment, which attracts the attention of researchers to focus on IPM approaches against okra pests. Hence, the present study aimed to identify and determine the most effective insect growth regulators as an alternate for hazardous pesticides to suppress jassid and whitefly populations efficiently. Data on population reduction of jassid and whitefly were recorded before and after application of IGRs (Insect Growth Regulators) on okra at the Entomology section, Plant Protection Research Institute, Agriculture Research Sindh, Pakistan, in 2023. The spray-wise efficacy of the tested IGRs showed higher mortality of Amrasca biguttula and Bemisia tabaci after the third spray, as compared to the first and second. Average pooled reduction% at different time intervals of all three sprays showed maximum significant reduction percentage (56.89%) against A. biguttula with Buprofezin 25% treatment, followed by Pyriproxyfen 10% (49.76%) and Diflubenzuron 25% (46.58%), respectively. However, the maximum significant reduction percentage against B. tabaci (58.35%) was observed after spraying Pyriproxyfen 10% treatment followed by Diflubenzuron 25% (50.69%) and Buprofezin 25 % (47.89%), respectively. Based on the results obtained, it is concluded that all IGRs could be effectively used as part of the Integrated Pest Management (IPM) strategy against okra pests.
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Copyright (c) 2026 Khalid Hussain Dhiloo, Jamal-U-Din Hajano, Abdul Waheed Solangi, Aftab Raza Jarwar, Aneeta Lashari, Kaneez Fatima
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