Optimizing the Use of Essential Oils to Protect Stored Cowpeas from Callosobruchus Maculatus (Coleoptera: Bruchinae) Damage

Ilboudo, Zakaria; Dabire-Binso, Clémentine L.; Sankara, Fernand; Nébié, Roger C. H.; Sanon, Antoine

doi:10.4001/003.023.0115

Cited by 10 publications

(8 citation statements)

References 20 publications

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“…Thus, the efficacy of H spicigera and L multiflora EO is dependent on the amount of cowpea seed treated, whereas this factor does not influence the activity of O canum and H suaveolens EOs. 57 Using up to 7 applications of EO over a 4-month period of cowpea storage, these authors also showed that the efficiency of EOs does not depend on the number of applications but on its specificity so on their chemical composition. It was also shown that not all cowpea storage containers potentiate the activity of EOs as plastic containers are more suitable than aluminum ones.…”

Section: Cowpea Storage Trialsmentioning

confidence: 94%

“…In this respect, several studies have been conducted on the effects of plants with insecticidal potential to control the cowpea beetle. [48][49][50][51][52][53][54][55][56][57] In Burkina Faso, several plant species have been involved in these studies since the early 2000s ( Table 1 and related references). Extensive studies were conducted on 6 plant species from 3 families including Capparaceae, Lamiaceae, and Verbenaceae, through bioassays on C maculatus, cowpea storage trials and side effects of botanicals on biological control agents ( Table 1).…”

Section: Plant Species With Insecticidal Potential To Control C Maculmentioning

confidence: 99%

“…Laboratory bioassays do not take into account the actual conditions of cowpea storage. To mitigate this limit some studies have also addressed long-term storage issues in conditions as close as possible to on-farm storage, either in a controlled laboratory environment 53,57,59 or on-farm. 52 Such studies have yielded variable results which tend to confirm some potential of protecting stored cowpeas using crushed C viscosa and B senegalensis.…”

Section: Cowpea Storage Trialsmentioning

confidence: 99%

“…Storage trials were also conducted using EO. 53,57 These studies have shown that several factors can affect the effectiveness of EO in stored cowpeas. Thus, the efficacy of H spicigera and L multiflora EO is dependent on the amount of cowpea seed treated, whereas this factor does not influence the activity of O canum and H suaveolens EOs.…”

Section: Cowpea Storage Trialsmentioning

confidence: 99%

“…Finally, the aromatization of powders of kaolin, starch, and diatomaceous earth with EO made it possible to obtain insecticidal powders just as effective as pure EO. 57…”

Section: Cowpea Storage Trialsmentioning

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: Cowpea Storage Trialsmentioning

confidence: 94%

Section: Plant Species With Insecticidal Potential To Control C Maculmentioning

confidence: 99%

Section: Cowpea Storage Trialsmentioning

confidence: 99%

Section: Cowpea Storage Trialsmentioning

confidence: 99%

“…Finally, the aromatization of powders of kaolin, starch, and diatomaceous earth with EO made it possible to obtain insecticidal powders just as effective as pure EO. 57…”

Section: Cowpea Storage Trialsmentioning

confidence: 99%

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