ARCHIVES
VOL. 10, ISSUE 3 (2025)
Bioefficacy of some ground plant powders against the seed beetle, Callosobruchus maculatus (Coleoptera: Chrysomelidae) in storage
Authors
Oabile L Tlale, Bamphitlhi Tiroesele, Goitseone Malambane, Mitch M Legwaila
Abstract
The seed beetle, Callosobruchus maculatus
(Coleoptera: Chrysomelidae) is a cosmopolitan field and storage
pest of stored grain in several parts of Africa. Its control in storage is
mainly founded on the application of synthetic grain protectants. The use of
synthetic insecticides to control stored produce pests has raised serious
environmental and human health concerns. A laboratory study was undertaken to
evaluate the effect of peppermint (Mentha piperita L.), garlic (Allium
sativum L), fever tea (Lippia javanica) and marigold (Tagetes
minuta) ground plant powders on oviposition, adult emergence and survival
of Callosobruchus maculatus on stored beans (Phaseolus vulgaris)
at the Botswana University of Agriculture and Natural Resources (BUAN). The
experiment was laid out in a Complete Randomized Design with three replicates.
Previous studies on the effects of bioactive plants on behavioral and
biological makeup of pests were taken into consideration. The study revealed differences
in the mean and percentage repellency, mortality and adult emergence of C.
maculatus on the treated beans. Garlic was found to be the most oviposition
deterrent followed by fever tea and marigold. Peppermint was the most effective
at inhibiting adult emergence followed by fever tea, garlic and marigold.
Marigold and peppermint ground powders were the most toxic to C. maculatus
beetles. This study found that garlic, peppermint, fever tea and marigold can
offer effective control of C. maculatus, and prevent serious damage to
stored beans. Extended durations of exposure and constant re-application may
help increase the efficacy of plant powders.
Download
Pages:50-54
How to cite this article:
Oabile L Tlale, Bamphitlhi Tiroesele, Goitseone Malambane, Mitch M Legwaila "Bioefficacy of some ground plant powders against the seed beetle, <i>Callosobruchus maculatus</i> (<i>Coleoptera</i>: <i>Chrysomelidae</i>) in storage". International Journal of Zoology Studies, Vol 10, Issue 3, 2025, Pages 50-54
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.