Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana
Biological control is one of the recommended methods for aflatoxin mitigation. Biocontrol products must be developed, and their efficacy demonstrated before widespread use. Efficacy of two aflatoxin biocontrol products, Aflasafe GH01 and Aflasafe GH02, were evaluated in 800 maize and groundnut farme...
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2020
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/109102 |
| _version_ | 1855520416589676544 |
|---|---|
| author | Agbetiameh, D. Ortega Beltran, A. Awuah, R.T. Atehnkeng, J. Elzein, A. Cotty, P.J. Bandyopadhyay, Ranajit |
| author_browse | Agbetiameh, D. Atehnkeng, J. Awuah, R.T. Bandyopadhyay, Ranajit Cotty, P.J. Elzein, A. Ortega Beltran, A. |
| author_facet | Agbetiameh, D. Ortega Beltran, A. Awuah, R.T. Atehnkeng, J. Elzein, A. Cotty, P.J. Bandyopadhyay, Ranajit |
| author_sort | Agbetiameh, D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Biological control is one of the recommended methods for aflatoxin mitigation. Biocontrol products must be developed, and their efficacy demonstrated before widespread use. Efficacy of two aflatoxin biocontrol products, Aflasafe GH01 and Aflasafe GH02, were evaluated in 800 maize and groundnut farmers’ fields during 2015 and 2016 in the Ashanti, Brong Ahafo, Northern, Upper East, and Upper West regions of Ghana. Both products were developed after an extensive examination of fungi associated with maize and groundnut in Ghana. Each product contains as active ingredient fungi four Aspergillus flavus isolates belonging to atoxigenic African Aspergillus Vegetative Compatibility Groups (AAVs) widely distributed across Ghana. An untreated field was maintained for each treated field to determine product efficacy. Proportions of atoxigenic AAVs composing each product were assessed in soils before product application, and soils and grains at harvest. Significant (P < 0.05) displacement of toxigenic fungi occurred in both crops during both years, in all five regions. Biocontrol-treated crops consistently had significantly (P < 0.05) less aflatoxins (range = 76% to 100% less; average = 99% less) than untreated crops. Results indicate that both biocontrol products are highly efficient, cost-effective, environmentally safe tools for aflatoxin mitigation. Most crops from treated fields could have been sold in both local and international food and feed premium markets. Adoption and use of biocontrol products have the potential to improve the health of Ghanaians, and both income and trade opportunities of farmers, aggregators, distributors, and traders. |
| format | Journal Article |
| id | CGSpace109102 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1091022025-11-12T06:51:49Z Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana Agbetiameh, D. Ortega Beltran, A. Awuah, R.T. Atehnkeng, J. Elzein, A. Cotty, P.J. Bandyopadhyay, Ranajit aflatoxins maize groundnuts biological control intensification Biological control is one of the recommended methods for aflatoxin mitigation. Biocontrol products must be developed, and their efficacy demonstrated before widespread use. Efficacy of two aflatoxin biocontrol products, Aflasafe GH01 and Aflasafe GH02, were evaluated in 800 maize and groundnut farmers’ fields during 2015 and 2016 in the Ashanti, Brong Ahafo, Northern, Upper East, and Upper West regions of Ghana. Both products were developed after an extensive examination of fungi associated with maize and groundnut in Ghana. Each product contains as active ingredient fungi four Aspergillus flavus isolates belonging to atoxigenic African Aspergillus Vegetative Compatibility Groups (AAVs) widely distributed across Ghana. An untreated field was maintained for each treated field to determine product efficacy. Proportions of atoxigenic AAVs composing each product were assessed in soils before product application, and soils and grains at harvest. Significant (P < 0.05) displacement of toxigenic fungi occurred in both crops during both years, in all five regions. Biocontrol-treated crops consistently had significantly (P < 0.05) less aflatoxins (range = 76% to 100% less; average = 99% less) than untreated crops. Results indicate that both biocontrol products are highly efficient, cost-effective, environmentally safe tools for aflatoxin mitigation. Most crops from treated fields could have been sold in both local and international food and feed premium markets. Adoption and use of biocontrol products have the potential to improve the health of Ghanaians, and both income and trade opportunities of farmers, aggregators, distributors, and traders. 2020-11 2020-08-28T13:18:33Z 2020-08-28T13:18:33Z Journal Article https://hdl.handle.net/10568/109102 en Open Access application/pdf Elsevier Agbetiameh, D., Ortega-Beltran, A., Awuah, R.T., Atehnkeng, J., Elzein, A., Cotty, P.J. and Bandyopadhyay, R. 2020. Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana. Biological Control 150:104351. |
| spellingShingle | aflatoxins maize groundnuts biological control intensification Agbetiameh, D. Ortega Beltran, A. Awuah, R.T. Atehnkeng, J. Elzein, A. Cotty, P.J. Bandyopadhyay, Ranajit Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title | Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title_full | Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title_fullStr | Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title_full_unstemmed | Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title_short | Field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in Ghana |
| title_sort | field efficacy of two atoxigenic biocontrol products for mitigation of aflatoxin contamination in maize and groundnut in ghana |
| topic | aflatoxins maize groundnuts biological control intensification |
| url | https://hdl.handle.net/10568/109102 |
| work_keys_str_mv | AT agbetiamehd fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT ortegabeltrana fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT awuahrt fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT atehnkengj fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT elzeina fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT cottypj fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana AT bandyopadhyayranajit fieldefficacyoftwoatoxigenicbiocontrolproductsformitigationofaflatoxincontaminationinmaizeandgroundnutinghana |