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A climate-adapted push-pull system effectively controls fall armyworm, Spodoptera frugiperda (J E Smith), in maize in East Africa
Open accessAbstract
Fall armyworm, Spodoptera frugiperda (J E Smith), an economically important pest native to tropical and sub-tropical America has recently invaded Africa, causing substantial damage to maize and other crops. We evaluated functionality of a companion cropping system, ‘climate-adapted push-pull’, developed for control of cereal stemborers in drier agro-ecologies, as an added tool for the management of fall armyworm. The technology comprises intercropping maize with drought-tolerant greenleaf desmodium, Desmodium intortum (Mill.) Urb., and planting Brachiaria cv Mulato II as a border crop around this intercrop. Protection to maize is provided by semiochemicals that are emitted by the intercrop that repel (push) stemborer moths while those released by the border crop attract (pull) them. 250 farmers who had adopted the technology in drier areas of Kenya, Uganda and Tanzania were randomly selected for the study during the long rainy season (March-August) of 2017. Each farmer had a set of two plots, a climate-adapted push–pull and a maize monocrop. Data were collected in each plot on the number of fall armyworm larvae on maize, percentage of maize plants damaged by the larvae and maize grain yields. Similarly, farmers' perceptions of the impact of the technology on the pest were assessed using a semi-structured questionnaire. Reductions of 82.7% in average number of larvae per plant and 86.7% in plant damage per plot were observed in climate-adapted push-pull compared to maize monocrop plots. Similarly, maize grain yields were significantly higher, 2.7 times, in the climate-adapted push-pull plots. Farmers rated the technology significantly superior in reducing fall armyworm infestation and plant damage rates. These results demonstrate that the technology is effective in controlling fall armyworm with concomitant maize grain yield increases, and represent the first documentation of a technology that can be immediately deployed for management of the pest in East Africa and beyond.
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Cites
The Use of Push-Pull Strategies in Integrated Pest Management
Cook, S. M., Khan, Z. R., & Pickett, J. A. (2007) · Annual Review of Entomology · doi:10.1146/annurev.ento.52.110405.091407 · Cited by 1,572
Self-citationStorer, N. P., Babcock, J. M., Schlenz, M., Meade, T., Thompson, G. D., Bing, J. W., & Huckaba, R. M. (2010) · Journal of Economic Entomology · doi:10.1603/ec10040 · Cited by 641
Cited by
Intensification for redesigned and sustainable agricultural systems
Pretty, J. (2018) · Science · doi:10.1126/science.aav0294 · Cited by 655
Baudron, F., Zaman-Allah, M. A., Chaipa, I., Chari, N., & Chinwada, P. (2019) · Crop Protection · doi:10.1016/j.cropro.2019.01.028 · Cited by 336
De Groote, H., Kimenju, S. C., Munyua, B., Palmas, S., Kassie, M., & Bruce, A. (2020) · Agriculture, Ecosystems & Environment · doi:10.1016/j.agee.2019.106804 · Cited by 325
Barrios, E., Gemmill-Herren, B., Bicksler, A., Siliprandi, E., Brathwaite, R., Moller, S., Batello, C., & Tittonell, P. (2020) · Ecosystems and People · doi:10.1080/26395916.2020.1808705 · Cited by 293
(2022) · doi:10.1038/s41598-021-04369-3 · Cited by 115
Metadata
- Authors
- Midega, C. A. O., Pittchar, J. O., Pickett, J. A., Hailu, G. W., & Khan, Z. R.
- Venue
- Crop Protection
- Publisher
- Elsevier BV
- Published
- 2018-03
- Volume
- 105
- Pages
- 10-15
- ISSN
- 0261-2194 (ISSN-L)
- OpenAlex
- W2769058086
- Cited by
- 431
- References
- 2
- FWCI
- 19.22
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Midega, C. A. O., Pittchar, J. O., Pickett, J. A., Hailu, G. W., & Khan, Z. R. (2018). A climate-adapted push-pull system effectively controls fall armyworm, Spodoptera frugiperda (J E Smith), in maize in East Africa. Crop Protection. https://doi.org/10.1016/j.cropro.2017.11.003
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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