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VOL. 8, ISSUE 2 (2023)
Bio-control effect of neem (Azadirachta indica A. Juss, 1830) leaf and seed powders against adult bean weevil (Acanthoscelides obtectus Say, 1831) mortality
Authors
Mehmet Karakas
Abstract
A laboratory study with the objective of investigating the effects of
neem seed and leaf powder against adult bean weevil was conducted at an animal
research laboratory. The study had one factor neem seed powder at rates of 2, 4
and 6% w/w and control group and another factor of neem leaf powder at rates of
2, 4 and 6% w/w and control group. The treatments were applied with three
replications. Data were collected on dead adult weevils only. The dead adult
weevils were counted within 7, 21 and 42 days after the infested bean was
treated by neem seed powder and leaf powder. The collected data were subjected
to one way ANOVA procedures. Results showed that there were significant
differences (p<0.05) in the mean percent mortality of A. obtectus
among the different concentration of seed and leaf powder with time of storage.
The highest mean mortality percent were recorded at the 6% w/w concentration.
The 2, 4 and 6% w/w concentration rates of neem seed powder killed about 68.39,
73.6 and 87.15% of adult weevils, respectively throughout the storage period.
Whereas the leaf powder treatment killed 66.17, 70.28 and 82.57% adult weevils
respectively. It is concluded that the application 6% w/w of both neem seed and
leaf powder are effective in the control of bean weevil and could be used as an
alternative control option in integrated stored pest management strategies by
small scale farmers.
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Pages:13-16
How to cite this article:
Mehmet Karakas "Bio-control effect of neem (<i>Azadirachta indica</i> A. Juss, 1830) leaf and seed powders against adult bean weevil (<i>Acanthoscelides obtectus</i> Say, 1831) mortality". International Journal of Biology Research, Vol 8, Issue 2, 2023, Pages 13-16
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