Pesticides Use among Grain Merchants in Mubi Grain Markets of Adamawa State, Nigeria

Dahiru, B; Abdullahi, G.; Bukar, N

doi:10.4314/agrosh.v14i1.1

Cited by 9 publications

(11 citation statements)

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“…12 Similarly results from another study showed that traders consider the insecticide-treated grains to be fit for resale and therefore safe for consumption if they no longer spot traces of applied chemicals on the treated grains and to a lesser degree if they do not perceive the odor of the pesticidal materials on it. 11 Thus, there is no due regard for waiting period vis-à-vis the dosages applied with no reasonable allowance, made for effective biodegradability of these chemicals to less harmful constituents. The effects of exposure to pesticides include development of many cancers as well as the risk of genotoxic, immunotoxic, and neurotoxic and adverse reproductive effects and an increased incidence of psychiatric and dermatologic conditions.…”

Section: Side Effects Of Synthetic Insecticides Used For Grain Presermentioning

confidence: 99%

“…10 In view of these economic issues, the actors of the cowpea sector, and especially the traders, use all the means they consider effective to safeguard their stocks. 11,12 Storage methods include the use of insecticides as common as they are considered by some to be cheaper and more effective than existing alternatives. [12][13][14] Unfortunately, many side effects are associated with the use of chemicals which are hazardous to humans and environment, 15 and which also exacerbate insect pest control due to resistance development.…”

Section: Introductionmentioning

confidence: 99%

“…10 In view of these economic issues, the actors of the cowpea sector, and especially the traders, use all the means they consider effective to safeguard their stocks. 11,12…”

Section: Introductionmentioning

confidence: 99%

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Potential of Botanicals to Control Callosobruchus maculatus (Col.: Chrysomelidae, Bruchinae), a Major Pest of Stored Cowpeas in Burkina Faso: A Review

Sanon

Ilboudo

et al. 2018

Int J�Insect�Sci

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Cowpea is an essential food legume in the tropics and particularly for sub-Saharan African populations. Postharvest grain storage, however, is a major constraint for crop expansion and year-round availability due to the cowpea weevil, Callosobruchus maculatus F., the main storage pest of cowpeas in West Africa. The use of chemicals for cowpea storage is a common practice which represents, however, a risk for consumers, environment, and could also exacerbate pest control. In Burkina Faso, since the early 2000s, several scientific investigations have focused on the control of C maculatus using botanicals considered as promising and safe alternatives to chemicals. The aim of this review is to take stock of the research conducted and to identify the potential candidates on which future studies in this field will focus. The set of data analyzed show that several plants materials, including powders, crushed plants and essential oils (EO), were active against eggs, larvae, and adults of C maculatus, through dose-dependent mortality responses. However, EO extracted from native aromatic plants have yielded the most promising results, specifically EO from Ocimum canum appeared as the best candidate control agent. Other potentially interested EO tested included Hyptis suaveolens, Hyptis spicigera, and Lippia multiflora. Based on these results, attempts to optimize the use of EO for cowpea storage were conducted in laboratory and field conditions. Side effects of botanicals toward the main biological control agent, the ectoparasitoid Dinarmus basalis have also been highlighted. The results are discussed in a view of practical use of botanicals and EO as safe alternatives for Integrated Pest Management in stored cowpeas in Africa and developing countries.

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Section: Side Effects Of Synthetic Insecticides Used For Grain Presermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Potential of Botanicals to Control Callosobruchus maculatus (Col.: Chrysomelidae, Bruchinae), a Major Pest of Stored Cowpeas in Burkina Faso: A Review

Sanon

Ilboudo

et al. 2018

Int J�Insect�Sci

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“…These synthetic chemicals are toxic in nature affecting both the target and non-target species of plants and animals. Hence, the need to essentially subject them to safe and judicious use (Dahiru et al, 2014). Oruonye & Okrikata (2010) confirmed that the application of synthetic agro-chemicals to control crop enemies has a lot of adverse ecological impact.…”

Section: Introductionmentioning

confidence: 99%

Effects of crude extracts of Aspergillus fumigatus and Penicillium citrinum on the biomass of Eleusine indica (L.) Gaertn

Yahaya¹,

Fawole²,

Takim³

2019

Agrosearch

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In a pot experiment, two fungal strains namely Aspergillus fumigatus and Penicillium citrinum were evaluated for their herbicidal properties on the biomass of Eleusine indica using the biomass reduction method. Crude extracts of Aspergillus fumigatus and Penicillium citrinum made up of 10 treatments at three levels each with positive and negative controls in three replications in a Completely Randomised Block Design was adopted. Infections were evident within 48 hours after the application of the various treatments. At 1, 3, 5 and 7 days after application of the treatments, the percentage biomass yields and biomass reductions of E. indica were determined. The data collected were subjected to analysis of variance and the means separated using Duncan Multiple Range Test. The percentage reductions in biomass yields (88.46% and 35.61%) of Eleusine indica especially at the highest inocula concentration (10 10 spores/ml) of the crude extracts showed significant differences (p≤ 0.001). The results indicate that both crude extracts possess the potentials for herbicidal control of Eleusine indica with evidence that the concentrated crude extracts of Aspergilus fumigatus had the greatest impact on its biomass yields. Therefore, it is recommended that further work be carried out on the purification of both crude extracts to confirm the effective biological metabolites accountable for their herbicidal properties and also evaluate these herbicidal properties on other weed species adopting different time and methods of application.

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“…Control of cowpea pests has been mainly through application of synthetic insecticides but over-reliance on different chemicals and frequent misuse of the active ingredients have led to cases of poisoning in man, animals and the environment (Kopittke and Menzies, 2006;Iyanda, 2013Iyanda, , 2014Dahiru et al, 2014). Efforts have, therefore, been directed towards finding nonchemical control strategies that are safer.…”

Section: Introductionmentioning

confidence: 99%

Protease inhibition in cowpea pod-sucking bug species (Hemiptera: Heteroptera) using cereal and legume grain extracts

Taiwo¹,

Soyelu²,

Okonji³

2016

Afr. J. Biochem. Res.

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Selected grain extracts were assayed against digestive proteases of Anoplocnemis curvipes, Clavigralla tomentosicollis and Mirperus jaculus with a view to identifying suitable sources of protease inhibitors against the cowpea pests. Laboratory bioassays showed that grains of a local soybean variety Kìshí and a cowpea landrace NG/SA/07/0098 contain potent inhibitors although the former produced a consistently higher level of inhibition in each of the three pests. Protease activity was highest in C. tomentosicollis (1.06 μmol/mg) followed by M. jaculus (0.94 μmol/mg) and A. curvipes (0.69 μmol/mg) but inhibition was highest in M. jaculus. The optimum temperature range for the inhibitors was 40-90°C while optimum inhibitory activity occurred in weak acidic to neutral media, pH 4-7. There was total protease inhibition in the pests when soybean and cowpea extracts were combined against gut extracts in soybean-biased volumetric ratios of 0.7:0.3 and 0.8:0.2. This synergistic efficacy was superior to those of two commercial products. The inhibitors were stable for 10-50 min at 80°C but got denatured within few minutes of exposure to higher temperatures. Obtained results showed that the soybean and cowpea are suitable sources of protease inhibitors in breeding exercises for development of transgenic cowpea varieties.

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Pesticides Use among Grain Merchants in Mubi Grain Markets of Adamawa State, Nigeria

Cited by 9 publications

References 0 publications

Potential of Botanicals to Control Callosobruchus maculatus (Col.: Chrysomelidae, Bruchinae), a Major Pest of Stored Cowpeas in Burkina Faso: A Review

Potential of Botanicals to Control Callosobruchus maculatus (Col.: Chrysomelidae, Bruchinae), a Major Pest of Stored Cowpeas in Burkina Faso: A Review

Effects of crude extracts of <i>Aspergillus fumigatus</i> and <i>Penicillium citrinum</i> on the biomass of <i>Eleusine indica</i> (L.) Gaertn

Protease inhibition in cowpea pod-sucking bug species (Hemiptera: Heteroptera) using cereal and legume grain extracts

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