Essential oil extract from &lt;i&gt;Moringa oleifera&lt;/i&gt; roots as cowpea seed protectant against cowpea beetle

Alabi, O.Y.; Adewole, Mary M

doi:10.4314/acsj.v25i1.5

Cited by 8 publications

(5 citation statements)

References 11 publications

(9 reference statements)

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“…Du Val (Coleoptera: Tenebrionidae) [18] and Callosobruchus maculatus Fabr. (Coleoptera: Bruchidae) [19] , verifying high mortality rates and reduced egg production when applied to adults in contact and fumigation tests using moringa root oil. Holtz et al [20] found increased efficiency in the mortality of T. urticae using Moringa seed oil at different storage times.…”

Section: Resultsmentioning

confidence: 87%

Untitled

2020

J Pharmacogn Phytochem

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The study evaluated the acaricidal effect of aqueous extracts of green, mature and dried seeds of Moringa oleifera Lam. aiming to control Tetranychus urticae (Acari: Tetranychidae). Powder of green, ripe and dried seeds of M. oleifera were used in the preparation of aqueous extracts. Petri dishes containing Canavalia ensiformis (L.) D.C. leaf disc was used as arenas, with 10 replicates per treatment. First, the toxicity test was carried out, spraying the concentration of 20% (m / v) of each treatment on the mites in the arena. Later, the lethal concentration for T. urticae was estimated. The extracts were toxic to T. urticae, with higher mortality for green seed extracts, followed by mature seed extract. The green seed extract of M. oleifera showed lower LC50 among the tested treatments. This demonstrates that seed extracts, in the early stage of development, are promising for the control of T. urticae.

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Section: Resultsmentioning

confidence: 87%

Untitled

2020

J Pharmacogn Phytochem

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“…According to Refs. [ 25 , 52 ], the inability of the insects to deposit their eggs on the treated grains may have prevented larval feeding, reducing crop damage and weight loss. All three of the animal bone biochar tested were efficient in managing the pest in comparison to the control trial.…”

Section: Discussionmentioning

confidence: 99%

Assessments of some animal bones biochar as paddy protectants against rice weevil, Sitophilus oryzae L. [Coleoptera: Curculionidae]

Ileke,

Ojomo

2024

Heliyon

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“…Peasant farmers still rely on chemical insecticides despite the numerous problems associated with their usage ( Alabi and Adewole, 2017 ; Ojo et al., 2020 ). These problems range from environmental pollution and toxicity on the users and the non-targeted useful organisms ( Mgbemena et al., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

“…This has led to serious economic losses both in the field and in storage ( Uyi and Igbinoba, 2016 ). The cowpea seed beetle, Callosobruchus maculatus is a field-to-store pest of cowpea ( Alabi and Adewole, 2017 ). Infestation usually commences in the field and continues in the store where the population is being built up ( Ojo et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Kigelia africana Lam. (Benth.) leaf and stem bark ethanolic extracts on adult cowpea seed beetle, [Callosobruchus maculatus Fabricius (Coleoptera: Chrysomelidae)] affecting stored cowpea seeds (Vigna unguiculata)

Obembe

Ojo

Ileke

2020

Heliyon

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Callosobruchus maculatus is the most damaging insect pest of stored cowpea (Vigna unguiculata) seeds in Nigeria. Thus, this present research work was put in place to assess the insecticidal activities of the extracts obtained from the leaf and stem bark of Kigelia africana (Lam.) Benth against the cowpea seed beetle, C. maculatus. The parameters that were assessed were adult mortality, oviposition and adult emergence of C. maculatus. The experiments were conducted under laboratory conditions of 28AE2 C temperature and 75 AE 5% relative humidity. The extracts were applied at dosages of 0.3, 0.6, 0.9 and 1.2 mL per 20 g of cowpea seeds. The two extracts of K. africana were found to be toxic to the survival of the C. maculatus. However, the extract obtained from the leaf was more potent to the beetle than the extract obtained from the stem bark of the same plant. The two extracts also reduced ovipositipon and completely suppressed adult emergence at the highest dose of 1.2 mL per 50 g of cowpea seeds. The results obtained in the present research work showed that the two extracts of K. africana were effective in suppressing the population of the infamous stored pest of cowpea seed beetle, C. maculatus and could therefore be recommended to replace the harmful synthetic chemical insecticides in protecting cowpea seeds in storage.

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Essential oil extract from <i>Moringa oleifera</i> roots as cowpea seed protectant against cowpea beetle

Cited by 8 publications

References 11 publications

Untitled

Untitled

Assessments of some animal bones biochar as paddy protectants against rice weevil, Sitophilus oryzae L. [Coleoptera: Curculionidae]

Efficacy of Kigelia africana Lam. (Benth.) leaf and stem bark ethanolic extracts on adult cowpea seed beetle, [Callosobruchus maculatus Fabricius (Coleoptera: Chrysomelidae)] affecting stored cowpea seeds (Vigna unguiculata)

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