Aqueous plant extracts for control of groundnut leaf spot in Burkina Faso

Koïta, Kadidia; Zagre, B. M’Bi; Sankara, Philippe

doi:10.4314/acsj.v25i3.5

Cited by 8 publications

(8 citation statements)

References 12 publications

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“…Studies on L. rehmannii indicated a real efficiency of essential oil against R. solani, F. oxysporum and Penicillium digitatum fungi, which are respectively potato, maize and orange tree pathogens (Linde et al, 2010). Recent work has shown that the activity of this aqueous extract induces a control of the disease in the field and an increase of the yield to more than 10% compared to the negative control (Koïta et al, 2017). The integrated use of this plant with fungicide resulted in better control of the disease and a substantial gain in yield.…”

Section: Discussionmentioning

confidence: 99%

Untitled

2018

Int. J. Appl. Microbiol. Biotechnol. Res.

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This study is a contribution in the fight against early and late leaf spots (two fungal diseases) of peanut (Arachis hypogaea L.). The objectives of the study was to evaluate the antifungal effect of integrated treatment which composed of an aqueous extract of Lippia multiflora Moldenke leaves with a chemical fungicide (Chlorothalonil), alternately. The experiment was conducted in Gampêla district in Burkina Faso during the crop season 2016-2017. From 30 days after sowing (DAS), two varieties of peanuts, TS32-1 and B106, were sprayed five times, every 15 days, with the leaf plant extract (50 g dried leaves/1 l water) combined or not with Chlorothalonil. Marked effects on leaf spots were noticed from the first spraying, limiting the defoliation rate, the necrotic leaf area, and increasing pod and seed yield. Treatment means were compared using Student Newman-Keul test. Alternative treatments with Chlorothalonil fungicide reduced significantly the severity of diseases in the field. The maximum disease effect was observed on the untreated plot reaching the value of 6 in sensitive variety TS32-1. The integrated treatments, T2, T3 and T4 limited the disease at level 4 up to 90 DAS at last treatment. Among the alternative treatments, the highest pod and seed yields were observed with T4 (1519 and 408 kg ha -1 ) and T3 (1479 and 443 kg ha -1). This work confirmed the possibility to reduce the number of applications of fungicide in field by integrated treatments using aqueous extract of L. multiflora Moldenke leaves against leaf spots control. Therefore, the application of these plants extracts and Chlorothalonil in the control of leafs pots could lead to substantial yield increases for producers whilst ensuring safer conditions for consumers, producers and the environment.

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Section: Discussionmentioning

confidence: 99%

Untitled

2018

Int. J. Appl. Microbiol. Biotechnol. Res.

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“…Jenkins) coupled with groundnut rust (Puccinia arachidis L.) have been reported to be able to cause severe economic yield loss in groundnut globally (Anco et al, 2016;Damicone, 2017;Ghewande, 2009;Nutsugah et al, 2007;Subramanyam et al, 1991;Waliyar et al, 2000;Woodward et al, 2013). Generally, leaf spots can cause between 50-70% yield losses in West Africa (Naab et al, 2004;Waliyar et al, 2000) and up to 50% yield loss worldwide (Desai & Bagwan, 2005;Koïta et al, 2017;McDonald et al, 1985;Pal et al, 2014;Sangoyomi & Alabi, 2016). Pal et al (2014) reported that effective control of fungi diseases in groundnut has not been achievable to date despite the availability of different kinds of fungicides.…”

Section: How To Citementioning

confidence: 99%

“…Several research findings have proven that plants that contain antimicrobial biochemical metabolites, when applied against microbes are less detrimental to the environment than synthetic pesticides (Hashim & Devi, 2003). Koïta et al (2017) reported that aqueous extracts of Lippia multiflora Moldenke and Ziziphus mucronata Wild were most effective and significantly increased groundnut pod yield on a susceptible groundnut variety (TS32-1) in Burkina Faso compared to other treatments.…”

Section: How To Citementioning

confidence: 99%

Appraisal of fungi leaf spots of groundnut (Arachis hypogea) and control of Cylindrocladium blight disease using biocontrol, botanical, and chemical measures

NDİFON¹

2022

Biotech Studies

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Groundnut is infected by 55 pathogens which adversely contribute to the low yield of groundnuts. Three sub-trials were conceived to proffer solutions to groundnut Cylindrocladium parasiticum disease. These sub-trials (using biocontrol, synthetic and botanical measures) were set up in vitro using completely randomized design with each treatment replicated thrice. Firstly, all biocontrol (Trichoderma) isolates showed a steady linear increase in the inhibition of the growth of the pathogen. There was no significant difference (P≤0.05) between the isolates of Trichoderma harzianum at 96 h after inoculation (HAI). Secondly, the synthetic pesticide Mancozeb® 100% significantly inhibited the pathogen more than all other synthetic chemical treatments, followed by Mancozeb 50%, Tandem® 100% and Tandem 50% (which were at par (at 144 HAI)). Thirdly, the botanical Parkia sp. 100% was significantly superior to other botanicals (192 HAI results). Likewise, Casuarina sp. 100% and Parkia sp. 50% were at par but performed better than other treatments except for Parkia sp. 100%. Inhibition by Casuarina sp. 50% was at par with Parkia sp. 50% but it was significantly superior to other treatments (except for Parkia sp. 100%, Casuarina sp. 100%, and Parkia sp. 50%). Finally, all trials showed that Mancozeb 100% performed better than other treatments.

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“…In Cameroon, groundnut is produced in all regions with an average yield of about 0.85 t ha −1 (Ambang et al 2011) compared to a global average of 1.5 t ha −1 (FAOSTAT 2014). Low yields in Cameroon may be attributed to low availability of improved varieties to local farmers, poor agronomic practices as well as pests and diseases (Fontem et al 1996;Ambang et al 2008;Ambang et al 2010;Ambang et al 2011;Koita et al 2017). Among diseases, early and late leaf spots caused by Cercospora arachidicola Hori and Cercospora personatum (Berk and Curt), respectively, are the most important foliar diseases of peanut in the world (Fontem et al 1996;Ogwulumba et al 2008;Ambang et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Varietal resistance is an effective and practical method for managing crop diseases but the unavailability and high cost of such seeds limits its application (Lucas et al 1992). Chemical control using fungicides and/or in combination with phyto-extracts results in harmful consequences on the environment (Srinivas et al 1997;Ambang et al 2008;Koita et al 2017). Moreover, synthetic products are very expensive and inaccessible to small-scale producers.…”

Section: Introductionmentioning

confidence: 99%

Effect of phyto-extracts of neem (Azadirachta indica) and garlic (Allium sativum) on leaf spot disease of groundnut (Arachis hypogaea L.)

et al. 2020

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A field experiment was conducted to investigate the effect of aqueous and ethanolic extracts of neem (Azadirachta indica A. JUSS) and garlic (Allium sativum L.) against Cercospora leaf spot (CLS) disease of groundnut (Arachis hypogaea L.). A split plot design using two exotic (“fleur” 11 var., 65-13 var.) and one local (village var.) variety of groundnut as the main factor and ten treatments comprising one negative control (sterile distilled water), one positive control (fungicide: spavozeb) and eight phyto-extracts replicated three times was applied. Treatments were applied to plots at 45, 60, 75 and 90 days after planting (DAP). Results showed that CLS disease incidence ranged between 66.67% and 88.89% at 65 DAP for 10% ethanolic extract of garlic and 20% aqueous extract of garlic, respectively. Disease severity was lowest for 20% ethanolic extracts of neem seeds (14.74%) and garlic bulb (14.99%) at 65 DAP. Yield obtained from treatments of ethanolic extracts of garlic (3.62 t ha−1) was significantly higher (p < 0.05) than the control (2.40 t ha−1) but comparable to the spavozeb treatment (3.09 t ha−1). Exotic varieties were more productive (3.13 and 3.43 t ha−1) than the more resistant local variety (2.67 t ha−1).

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Aqueous plant extracts for control of groundnut leaf spot in Burkina Faso

Cited by 8 publications

References 12 publications

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Untitled

Appraisal of fungi leaf spots of groundnut (Arachis hypogea) and control of Cylindrocladium blight disease using biocontrol, botanical, and chemical measures

Effect of phyto-extracts of neem (Azadirachta indica) and garlic (Allium sativum) on leaf spot disease of groundnut (Arachis hypogaea L.)

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