Efficacy of Three Plant Powders in the Control of<i>Cylas puncticollis</i>(Boheman) (Coleoptera: Curculionidae) on Sweet Potato During Storage

Nta, A.I.; Okweche, Simon Idoko; Umoetok, S. B. A.

doi:10.4001/003.026.0141

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…The sweet potato treated with nut extracts showed less tuber damage (18%) than the positive control (33%) and could offer a better alternative in the control of SPW. Crude extracts from Aframomum melegueta, Dennettia tripetalla and Xylopia aethiopica fruits have shown protection of sweet potato tuber from damage by SPW, with low damage of 11.5%, 15.1% and 10.6%, respectively [41]. Our results from the laboratory bioassays validated in the greenhouse indicate that M. volkensii nut and pulp extracts could potentially be an important component in the management of FAW and SPW.…”

Section: Discussionmentioning

confidence: 66%

Laboratory and Greenhouse Evaluation of Melia volkensii Extracts for Potency against African Sweet Potato Weevil, Cylas puncticollis, and Fall Armyworm, Spodoptera frugiperda

et al. 2021

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The African sweet potato weevil, Cylas puncticollis, and fall armyworm, Spodoptera frugiperda, are insect pests of economic importance that have a negative impact on sweet potato and maize production, respectively. In this study, we aimed to evaluate the potential of Melia volkensii extracts to protect sweet potato and maize plants against damage by both insect pests. We evaluated extracts from the bark, leaves, pulp and nuts of Melia volkensii for antifeedant activity against C. puncticollis and S. exigua (used as a substitute for S. frugiperda), under laboratory conditions. Interestingly, extracts of all plant parts showed antifeedant activity. These results led us to investigate the effectiveness of nut and pulp extracts to protect sweet potato and maize crops in greenhouse conditions. Against C. puncticollis, the sweet potato plants treated with nut extracts showed the lowest tuber damage (18%) when compared to pulp extracts (30%), positive control (33%) and negative control (76%). Nut extracts, pulp extracts and positive control reduced maize leaf and whorl damage by S. frugiperda compared to the negative control. Altogether, this study highlights the potential of M. volkensii extracts and their application in integrated insect pest management

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Section: Discussionmentioning

confidence: 66%

Laboratory and Greenhouse Evaluation of Melia volkensii Extracts for Potency against African Sweet Potato Weevil, Cylas puncticollis, and Fall Armyworm, Spodoptera frugiperda

et al. 2021

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“…Powders from three local plants (Dennettia tripetela, Fromomum melegueta, and Xylopia aethiopica) were assayed in various concentrations to determine effects on SPW in a lab setting. Several of the treatments resulted in significant mortality to adult SPW and a concomitant reduction of SPW progeny emergence from an in vitro tuber assay as compared to the control (Nta et al 2018). Chemistry derived from plant matter (botanicals) such as the examples described above, are an environmentally safe, accessible alternative that could be an attractive pest management approach for SSA.…”

Section: Botanicalsmentioning

confidence: 99%

Tailoring IPM plans to fight a cloaked pest: helping smallholder farmers combat the sweetpotato weevil in sub-Saharan Africa

Keyser,

Walters,

Turner

et al. 2024

CABI Agric Biosci

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Africa accounts for a significant portion of the world’s sweetpotato production where it is widely grown as a staple crop. In sub-Saharan Africa (SSA), sweetpotato serves as an important year-round source of calories and nutrition, a form of income for smallholder and pre-commercial farmers, and is increasingly used as silage for animal feed. However, yield per hectare is considerably lower in SSA than from other regions primarily due to sweetpotato weevils (SPW, Cylas spp., Coleoptera: Brentidae). Weevil feeding causes physical damage to the root and can induce chemical responses that give the storage root a bitter taste, both of which make them unmarketable. Commercial growers in many developed countries rely on frequent chemical treatments and strict quarantine regulations to control SPW, however, this approach is currently not practical for many areas of SSA. In this paper we, (1) outline factors that contribute to SPW infestation; (2) review available strategies and ongoing research for control of SPW, including chemical pesticides, biological control (macro-organismal as well as microbial control), cultural practices, selective breeding, and biotechnology; and (3) discuss the potential for implementing an integrated pest management (IPM) approach that leverages a combination of techniques. We rationalize that a multifaceted strategy for SPW control will improve both the quantity and quality of sweetpotato production in Africa.

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“…Sweet potato plays an essential dietary role in many parts of tropical Africa, and also as an efficient producer of edible biological material for humans and animals [10]. The green leaves of the plant contain essential minerals and vitamins such as pro-vitamin A, vitamin B, vitamin C, calcium, potassium, iron and sodium [11]. The root is termed a 'three in one' commodity, blending the characters of cereals which contain increased levels of starch, fruits with high amounts of vitamins and pectin and vegetables which also contain vitamins and minerals [11].…”

Section: Introductionmentioning

confidence: 99%

“…The green leaves of the plant contain essential minerals and vitamins such as pro-vitamin A, vitamin B, vitamin C, calcium, potassium, iron and sodium [11]. The root is termed a 'three in one' commodity, blending the characters of cereals which contain increased levels of starch, fruits with high amounts of vitamins and pectin and vegetables which also contain vitamins and minerals [11]. With this rich minerals and vitamins, this crop is consumed raw, boiled, fried, dried, and processed into flour for bread and pastries [12].…”

Section: Introductionmentioning

confidence: 99%

Integrating Tithonia Diversifolia, Piper Guineense and Oil Palm Bunch Residue Ash for the Management of Sweet Potato Weevil (Cylas Puncticollis Boh.) and on Yield of Sweet Potato in Fako Division of Cameroon

Okolle

Abuno²,

Monono³

et al. 2022

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This research was to evaluate the effects of integrating T. diversifolia, P. guineense and OPBRA to manage Cylas puncticollis infestation and on the yield of sweet potatoes. Bioassay 1, 5g T. diversifolia + 5g P guineense /100mL and 10g P guineense /100mL showed significant low (P < 0.05) in mortality, number of eggs laid, percentage repellence and progeny emergence of C. puncticollis. Bioassay 2: 20 g OPBRA /100mL, 5g OPBRA + 5g P guineense /100mL, and 10g P guineense /100mL. The lowest progeny emergence was 5g OPBRA + 5g P guineense /100mL. 5g OPBRA + 5g P guineense /100mL, and 10g P guineense /100mL showed significant difference (P < 0.05) in mortality, mean number of eggs laid of C. puncticollis with the control. Bioassay 3 and 4: showed significant effect (P < 0.05) of T. diversifolia, OPBRA and P. guineense pastes on weight loss due and root sizes to C. puncticollis damage of sweet potato. On the field, sweet potatoes that were treated with 2 ton/ha T. diversifolia + 2 ton/ha OPBRA + 0.33 ton/ha P. guineense and 0.67 ton/ha P. guineense showed significantly (P < 0.05) less infestation than the other treatments. Plants treated with 2 tons/ha T. diversifolia +2 tons/ha OPBRA + O.33 tons/ha P. guineense had the highest yield. The combination of T. diversifolia, OPBRA and small proportion of P guineense could serve as an alternative of source of synthetic pesticides managing C. puncticolis infestation as well as source of organic matter improve soil fertility.

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Efficacy of Three Plant Powders in the Control ofCylas puncticollis(Boheman) (Coleoptera: Curculionidae) on Sweet Potato During Storage

Cited by 4 publications

References 25 publications

Laboratory and Greenhouse Evaluation of Melia volkensii Extracts for Potency against African Sweet Potato Weevil, Cylas puncticollis, and Fall Armyworm, Spodoptera frugiperda

Laboratory and Greenhouse Evaluation of Melia volkensii Extracts for Potency against African Sweet Potato Weevil, Cylas puncticollis, and Fall Armyworm, Spodoptera frugiperda

Tailoring IPM plans to fight a cloaked pest: helping smallholder farmers combat the sweetpotato weevil in sub-Saharan Africa

Integrating Tithonia Diversifolia, Piper Guineense and Oil Palm Bunch Residue Ash for the Management of Sweet Potato Weevil (Cylas Puncticollis Boh.) and on Yield of Sweet Potato in Fako Division of Cameroon

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