Bioactivity of selected plant powders against Prostephanus truncatus (Coleoptera: Bostrichidae) in stored maize grains

Fridah Chebet, Arop L. Deng, Joshua O. Ogendo, Alice W. Kamau and Philip K. Bett
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Fridah Chebet: Department of Crops, Horticulture and Soils and
Arop L. Deng: Department of Biological Sciences, Egerton University, Egerton, Kenya
Joshua O. Ogendo: Department of Crops, Horticulture and Soils and
Alice W. Kamau: Department of Crops, Horticulture and Soils and
Philip K. Bett: Department of Biological Sciences, Egerton University, Egerton, Kenya

Plant Protection Science, 2013, vol. 49, issue 1, 34-43

Abstract: Crude powders of Azadirachta indica, Lantana camara, and Tephrosia vogelii, each at six concentrations (0.0, 2.0, 4.0, 6.0, 8.0, and 10% w/w), and Actellic SuperTM 2% dust were evaluated for repellence anti-feeding and toxicity to adult Prostephanus truncatus. Treatments were laid out in a completely randomised design with four replicates. Results showed that powders were strongly repellent (PR values 73.0-90.0%) and caused 46.2-52.2 and 69.7-85.6% reductions in grain damage and F1 progeny, respectively. Results showed that powders were weakly toxic to P. truncatus causing 40% kill 21 days after treatment compared to 100% kill by Actellic SuperTM2% dust 5 DAT. The findings are discussed in the context of their relevance for integrated pest management options in smallholder agriculture.

Keywords: Azadirachta indica; Lantana camara; Tephrosia vogelii; botanicals (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:49:y:2013:i:1:id:56-2011-pps

DOI: 10.17221/56/2011-PPS

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