ARCHIVES
VOL. 10, ISSUE 5 (2025)
Toxic potential of wild mustard fruit essential oil against maize weevil (Sitophilus zeamais Motschulsky)
Authors
Samuel A Babarinde, Ernest O Dawodu, Ismail A Ayegboyin, Sarah A Jolaoso, Adenike R Atanda
Abstract
Maize weevil, Sitophilus zeamais Motschulsky (Coleoptera:
Curculionidae) is associated with substantial losses of cereals at storage.
Therefore, it is essential to adapt effective and ecofriendly strategies for
protecting stored cereals. This study evaluates the toxic effect of Cleome
viscosa L. fruit essential oil (EO) against S. zeamais. The EO was
applied at 4.5 – 22.5 µl/ml air in the fumigant toxicity bioassay, while 5 – 40
µl/10 g grains were used to determine the toxicity of the EO against parental
(P1) and first filial (F1) weevils. The bioassays were
laid out in Completely Randomized Design and each treatment was replicated five
times. Data on fumigant toxicity bioassay were collected at 1.5, 3, 6, 12 and
24 Hours After Treatment (HAT). Data on toxicity of the EO on P1 and
F1 generations were collected at 7 and 50 - 57 Days After Treatment
(DAT), respectively. All data were subjected to analysis of variance. Fumigant
toxicity of the EO was dose-dependent. At 24 HAT, application of the EO at 22.5
µl/ml air evoked 79.40% mortality which was significantly higher than 8.80 –
61.33% mortality recorded in lower EO doses. The median lethal dose of the EO
at 24 HAT was 12.19 (11.03 – 13.44) µl/ml air. Mortality of the P1 S.
zeamais at 7 DAT was also dose-dependent; while 87.50% F1 progeny
mortality observed in grains treated with 40 µl EO per 10 g grains was
significantly higher than 33.33% observed in the grains treated with 5 µl EO
per 10 g grains.
Download
Pages:56-61
How to cite this article:
Samuel A Babarinde, Ernest O Dawodu, Ismail A Ayegboyin, Sarah A Jolaoso, Adenike R Atanda "Toxic potential of wild mustard<i> </i>fruit essential oil against maize weevil<i> </i>(<i>Sitophilus zeamais</i> Motschulsky)". International Journal of Entomology Research, Vol 10, Issue 5, 2025, Pages 56-61
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.