Influence of wetland borders on prevalence of fall armyworm and wasps in maize-soybean cropping system in Eastern Uganda
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Pest Management
Abstract
The non-crop habitats within agro-ecosystems are important resources for ecological and
biological insect pest management. Diversified cropping systems are known to influence
pest populations, however, how neighboring habitats affect pest population dynamics is not
clear. This study focused on understanding the influence of wetland borders on Fall
Armyworm (FAW) and wasps prevalence in a maize-soybean intercrop system in Eastern
Uganda. FAW and wasps population estimates were carried out in twelve farmers’ fields
stratified within 0–300 and 500–1100 meters from the wetland borderline. Data were collected
biweekly from emergence until post flower growth of the crops. Results showed the
prevalence of FAW was significantly higher on maize-soybean fields 500–1100 meters compared
to those within 0 to 300m from the wetland borders. While the prevalence of wasps
was significantly higher in the crops at 82–219 meters from wetland borderline. It is concluded
that wetland borders play a crucial role in negatively affecting crop pest populations
while positively influencing natural enemy populations and these effects are influenced by
distance of crop fields from the wetland border.
Description
Keywords
Wetland borders, Fall armyworm, Wasps, Population estimates, Maize-soybean intercrop
Citation
David Ojuu, Samuel Kyamanywa & Thomas Odong Lapaka (2021): Influence of wetland borders on prevalence of fall armyworm and wasps in maize-soybean cropping system in Eastern Uganda, International Journal of Pest Management, DOI: 10.1080/09670874.2021.1918356. https://doi.org/10.1080/09670874.2021.1918356