Efficacy of Senna occidentalis leaves powder on oviposition, hatchability of eggs and emergence of Callosobruchus maculatus (Fab)on treated cowpea seeds

Adesina, Jacobs Mobolade; Afolabi, L. A.; Aderibigbe, A. T. B.

doi:10.38150/sajeb.1(3).p168-171

SAJEB

2011

DOI: 10.38150/sajeb.1(3).p168-171

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Efficacy of Senna occidentalis leaves powder on oviposition, hatchability of eggs and emergence of Callosobruchus maculatus (Fab)on treated cowpea seeds

Jacobs Mobolade Adesina

L. A. Afolabi

A. T. B. Aderibigbe

Abstract: The efficacy of Senna occidentalis leaf powder against Callosobruchusmaculatus (F) on cowpea treated seeds was evaluated under ambientcondition (32±0.64°C and 68±3% R.H.) at the laboratory of AgriculturalTechnology of Rufus Giwa Polytechnic, Owo. C. maculatus was obtainedfrom OjaÃ¢â‚¬ÂOba market, Owo, Ondo State of Nigeria. The insects were rearedand bred in the laboratory. The cowpea seeds used for the bioassay werekept in the freezer for 15 days to eliminate infestation from the field. Theleaf powder was ob… Show more

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Seed preservatives properties of Secamone afzelii (Schult) K. Schum extracts on wheat grains damage and germination capability

Adesina¹,

Aderibigbe²

2021

Bull Natl Res Cent

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Background Botanical pesticides may be a possible solution to the post-harvest loss of stored grains faced by farmers and food processors. In this study, seed preservatives properties of Secamone afzelii leaves extracts at 50, 100, 150, 200 µl concentrations were investigated against lesser grain borer Rhyzopertha dominica (Fabricus) infestation on wheat grains weight loss and seed germination capability arranged in a Completely Randomized Design (CRD) and replicated thrice under ambient laboratory conditions. Results The outcomes of the study showed that S. afzelii leaves extracts exhibited significant effect (p < 0.05) in suppressing R. dominica adult emergence and weight loss of wheat grains than untreated. The increase in the concentrations led to significant decrease in adult emergence and weight loss with different extracts. Secamone afzelii ethyl acetate and hexane extracts significantly subdued adult emergence in contact toxicity (6.69% and 8.49%) and fumigant toxicity (8.85 and 8.87); a similar trend was observed in weight loss in both contact (2.33% and 5.13%) and fumigant (1.50% and 1.03%) toxicities at 200 µl, respectively. None of the extracts hinder the germination of treated grains, while germination percentage ranged between 88.69% and 93.40%. Conclusion The results clearly indicated that S. afzelii extracts, in general, ethyl acetate and hexane extracts of S. afzelii in particular were the best seed preservative for stored wheat. Thus S. afzelii leaves extracts could be utilized as grain protectant substitute for conventional synthetic insecticides and fumigants in the control of insect infestation and conservation of stored grain quality and germination capability. Further study is required to identify the bioactive chemicals responsible for the S. afzelii extracts insecticidal activity and stored grains quality preservation.

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Seed preservatives properties of Secamone afzelii (Schult) K. Schum extracts on wheat grains damage and germination capability

Adesina¹,

Aderibigbe²

2021

Bull Natl Res Cent

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Repellency and Bioactivity of Caatinga Biome Plant Powders againstCallosobruchus maculatus(Coleoptera: Chrysomelidae: Bruchinae)

Melo

Molina-Rugama

Haddi

et al. 2015

Florida Entomologist

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Eugenia aromaticaO. Berg andAfromomum meleguetaK. Schum botanical entomocides as possible synergetic protectant againstCallosobruchus maculatus(Fabricus) (Coleoptera: Chrysomelidae) infestation on stored cowpea (Vigna unguiculata(L.) Walp.)

2019

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Summary Introduction: Post-harvest protection of food grains against stored products insects’ infestation is a complementary means towards ensuring food security. Objective: Powders and extracts from Eugenia aromatica O. Berg and Aframomom melegueta K. Schum are to be evaluated for their synergetic effects on Callosobruchus maculatus Fabricus under laboratory conditions. Methods: The products were applied at rates of 1 g/20 g and 1% conc./20 g cowpea seeds respectively. Results: Findings show that E. aromatica products was more effective by evoking 100% mortality within 24 and 48 h, while synergetic effects of the two products evoked 100% mortality at 72 and 96 h. The survival of the bruchids treated with plant powder from eggs to adults indicated that, control had significant (p<0.05) progeny development (75.50%) in comparison with sole application of E. aromatica and combination with A. melegueta which recorded no progeny development. Conclusion: The study revealed that the plant products exerted toxicity effect against cowpea bruchid. Thus, they can be used to prevent egg hatching and thereby helping in the management of cowpea seeds.

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Efficacy of Senna occidentalis leaves powder on oviposition, hatchability of eggs and emergence of Callosobruchus maculatus (Fab)on treated cowpea seeds

Cited by 4 publications

References 0 publications

Seed preservatives properties of Secamone afzelii (Schult) K. Schum extracts on wheat grains damage and germination capability

Seed preservatives properties of Secamone afzelii (Schult) K. Schum extracts on wheat grains damage and germination capability

Repellency and Bioactivity of Caatinga Biome Plant Powders againstCallosobruchus maculatus(Coleoptera: Chrysomelidae: Bruchinae)

Eugenia aromaticaO. Berg andAfromomum meleguetaK. Schum botanical entomocides as possible synergetic protectant againstCallosobruchus maculatus(Fabricus) (Coleoptera: Chrysomelidae) infestation on stored cowpea (Vigna unguiculata(L.) Walp.)

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