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Impacts of 2 species of predatory Reduviidae on bagworms in oil palm plantations


Jamian, Syari and Ahmad Razi, Norhisham and Nasron, Amal Ghazali and Zakaria, Azlina and Md Sharif, Badrul Azhar (2017) Impacts of 2 species of predatory Reduviidae on bagworms in oil palm plantations. Insect Science, 24 (2). pp. 285-294. ISSN 1672-9609; ESSN: 1744-7917


Integrated pest management (IPM) is widely practiced in commercial oil palm agriculture. This management system is intended to minimize the number of attacks by pest insects such as bagworms on crops, as well as curb economic loss with less dependency on chemical pesticides. One practice in IPM is the use of biological control agents such as predatory insects. In this study, we assessed the response of predatory natural enemies to pest outbreak and water stress, and document the habitat associations of potential pest predators. The abundances of 2 predatory insect species, namely Sycanus dichotomus and Cosmolestes picticeps (Hemiptera: Reduviidae), were compared bagworm outbreak sites and nonoutbreak sites within oil palm plantations. We also examined habitat characteristics that influence the abundances of both predatory species. We found that the abundance of C. picticeps was significantly higher in bagworm outbreak sites than in nonoutbreak sites. There were no significant differences in the abundance of S. dichotomus among outbreak and non-outbreak sites. Both species responded negatively to water stress in oil palm plantations. Concerning the relationship between predatory insect abundance and in situ habitat quality characteristics, our models explained 46.36% of variation for C. picticeps and 23.17% of variation for S. dichotomus. Both species of predatory insects thrived from the planting of multiple beneficial plants in oil palm plantations. The results suggest that C. picticeps can be used as a biological agent to control bagworm populations in oil palm plantations, but S. dichotomus has no or little potential for such ecosystem service.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Forestry
Institute of Bioscience
DOI Number: https://doi.org/10.1111/1744-7917.12309
Publisher: Institute of Zoology, Chinese Academy of Sciences
Keywords: Bagworms; Beneficial plants; Biological control; Habitat quality; Integrated pest management; Oil palm; Predatory insects
Depositing User: Nabilah Mustapa
Date Deposited: 15 Mar 2018 06:33
Last Modified: 15 Mar 2018 06:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/1744-7917.12309
URI: http://psasir.upm.edu.my/id/eprint/59666
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