Volume 12, Issue 2 (2023)
JCP 2023, 12(2): 173-182 |
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Koomson C K. Biological activity of the leaf extract of Tetrapleura tetraptera on Rhyzopertha dominica (Bostrichidae: Coleoptera) in stored wheat. JCP 2023; 12 (2) :173-182
URL: http://jcp.modares.ac.ir/article-3-63975-en.html
URL: http://jcp.modares.ac.ir/article-3-63975-en.html
Department of Integrated Science Education, Faculty of Science Education, University of Education, Winneba, Ghana. , ckkoomson@uew.edu.gh
Abstract: (468 Views)
The bioactivity of the aqueous extracts of the leaf of Tetrapleura tetraptera against the wheat storage pest, Rhyzopertha dominica, on stored wheat grains was investigated in laboratory conditions. T. tetraptera leaf extracts were added to 20.0 g of grains at 25.0 mg/l, 50.0 mg/l, and 100.0 mg/l to assess contact toxicity, damage assessment, reproductive performance, and repellency ability. Results showed that the extracts were toxic to the insects. The leaf extracts applied at 100.0 mg/l significantly caused the highest mortality of 94% after 21 days. It also repelled almost 90% of the insects and inhibited adult emergence up to 98%. The 100.0 mg/l of the leaf extract further offered protection of nearly 99% of the wheat grains against insect damage compared to the control. This study revealed that leaf extracts of T. tetraptera can be used to control R. dominica in stored grains efficiently, and its incorporation into traditional storage pest management is strongly recommended in developing countries
Article Type: Original Research |
Subject:
Insect Physiology
Received: 2022/09/2 | Accepted: 2023/09/5 | Published: 2023/09/28
Received: 2022/09/2 | Accepted: 2023/09/5 | Published: 2023/09/28
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