Managing Acanthoscelides obtectus Say on Stored Phaseolus lunatus L. with Six Indigenous Botanical Powders

Mofunanya, A; Nta, A.I.

doi:10.9734/arrb/2018/42903

Cited by 2 publications

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“…Compounds of botanical origin which coevolved as defense mechanisms against herbivores and pathogens have been proposed as a promising strategy but few are commercially produced [9,10]. Numerous investigations of their protective power against storage pests is taking place, and insecticidal and repellent properties of plant powders [11][12][13], plant extracts [14][15][16], and essential oils are tested [17,18].…”

Section: Introductionmentioning

confidence: 99%

Toxic, Oviposition Deterrent and Oxidative Stress Effects of Thymus vulgaris Essential Oil against Acanthoscelides obtectus

Lazarević

Jevremović²,

Kostić

et al. 2020

Insects

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The bean weevil Acanthoscelides obtectus Say (Coleoptera: Chrysomelidae: Bruchinae) can cause significant losses in production of its primary host common bean Phaseolus vulgaris L. To avoid bean protection with environmentally risky chemical insecticides and provide sustainable and safe production of food, new pest management methods based on natural compounds are investigated. In the present study, we evaluated protective potential of the essential oil (EO) from the common thyme Thymus vulgaris L. applied on bean seeds. We assessed residual contact toxicity of thyme EO and its effects on A. obtectus longevity, oviposition and adult emergence. Furthermore, to elucidate the role of oxidative stress in thyme EO toxicity, we estimated the levels of oxidatively damaged proteins and lipids, as well as the level of thiols which have important role for antioxidant capacity. We found that thyme oil significantly reduced adult survival and longevity, induced oxidative damage to lipids and proteins and depleted protein and non-protein thiols in a concentration-dependent manner. Females appeared to be more tolerant to thyme oil treatment than males. Sublethal EO concentrations affected oxidative stress indices, deterred oviposition and strongly inhibited adult emergence. The results suggest that thyme oil has the potential to be used as an ecofriendly insecticide for A. obtectus control.

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Section: Introductionmentioning

confidence: 99%

Toxic, Oviposition Deterrent and Oxidative Stress Effects of Thymus vulgaris Essential Oil against Acanthoscelides obtectus

Lazarević

Jevremović²,

Kostić

et al. 2020

Insects

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“…Powders from the plant parts (leaf, stem and root) of Chromolaena odorata exhibited insecticidal activity against the cowpea beetle, Callosobruchus maculatus [56]. Mofunanya and Nta [57] reported on the insecticidal ability of Telfairia occidentalis, Piper guineensis, Gmelina arborea, Bryophyllum pinnate, Amaranthus viridis and Musanga ceropolides with P. guineensis and G. arborea exhibiting the highest insecticidal activity in the management of Acanthoscelides obtectus on stored Phaseolus lunatus.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Insecticidal Potential of Six Plants Leaves Powders against Acanthoscelides obtectus Say on Stored Phaseolus vulgaris L.

Nta

Mofunanya

Ogar

et al. 2019

JEAI

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Most plant powders possess insecticidal properties and can be used to control insect pests on stored products. This study was conducted to evaluate insecticidal properties of Solanum melongena, Parkia biglobosa. Ipomoea batatas, Colocasia esculenta, Tridax procumbens and Terminalia catappa against Acanthoscelides obtectus Say, an insect pest of stored Phaseolus vulgaris L. The leaves powder of these plants were assessed for aduticidal and reproduction inhibition potential as well as effect on seed weight in a completely randomized design at three treatment concentrations of 0.5%, 1.0%, 1.5% and 0 as the control. All the test plants investigated exhibited insecticidal activity against A. obtectus. Results showed a trend of variation in adult A. JEAI, 36(4): 1-12, 2019; Article no.JEAI.49045 2 obtectus mortality according to post-treatment days and plants powder concentrations. Results analysis revealed that at 14 days after treatment, T. catappa at 1.5% had the highest significant (P=0.05) mortality of 40.21±0.71 i . This was followed by S. melongena which had a similar effect of 39.41± 0.52 i at the same concentration (1.5%). The least significant mortality was observed in the control. At 0.5% T. procumbens, 0.5% Parkia biglobosa, 1.0% I. batatas and 1.0% C. esculenta, leaves powder had comparable effects. It was observed that the control had the highest number of progeny emergence of 181.33 ± 0.88 g after six weeks while T. catappa significantly (P=0.05) inhibited progeny at 1.5% followed by 1.5% S. melongena and 1.5% C. esculenta. Seeds of P. vulgaris treated with 1.5% T. catappa also had the least significant weight loss of 0.93 ± 0.17 g compared to the control which had the highest significant weight loss of 55.68 ± 0.79 g. Though all the plants studied caused significant increase in adult A. obtectus mortality, reduction in progeny emergence and P. vulgaris seed weight loss than the control. Terminalia catappa however, exhibited the best insecticidal potential. Terminalia catappa and Solanum melongena were very effective in inhibiting the reproduction and progeny emergence of A. obtectus, but increased adult mortality resulting in weight loss suggesting their potential in controlling A. obtectus on stored P. vulgaris. Original Research Article

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Managing Acanthoscelides obtectus Say on Stored Phaseolus lunatus L. with Six Indigenous Botanical Powders

Cited by 2 publications

References 0 publications

Toxic, Oviposition Deterrent and Oxidative Stress Effects of Thymus vulgaris Essential Oil against Acanthoscelides obtectus

Toxic, Oviposition Deterrent and Oxidative Stress Effects of Thymus vulgaris Essential Oil against Acanthoscelides obtectus

Evaluation of the Insecticidal Potential of Six Plants Leaves Powders against Acanthoscelides obtectus Say on Stored Phaseolus vulgaris L.

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