Biological control of the South American rice water weevil, Oryzophagus oryzae, using light traps with Beauveria bassiana in irrigated rice field
DOI:
https://doi.org/10.19180/1809-2667.v20n22018p180-184Keywords:
Coleoptera, Curculionidae, Integrated pest management, Root maggot, Oryza sativaAbstract
The South American rice water weevil, Oryzophagus oryzae (Costa Lima), is an important pest of irrigated rice in Brazil. Its larvae damage the plant root system. The practice of biological control of this insect needs to be improved. Thus, a research was carried out to verify the mortality rates of O. oryzae, by the infection of individuals with Beauveria bassiana (Bals.) Vuill. in light traps set in irrigated rice field. Two traps received an apparatus of fungal contamination, with mass of B. bassiana, prepared in autoclaved rice. A third trap, without apparatus, was maintained as a control. Insects captured from October 2013 to March 2014 were kept in the laboratory to verify mortality and fungal infection, characterized by the mycelial growth on body. The mortality rate of individuals artificially infected was 73.1%, whereas in the control was 0.8% (natural infection). Light traps with apparatus of fungal contamination were effective on the biological control of O. oryzae adults.Downloads
Published
Issue
Section
License
The authors of the manuscript submitted to Vértices, hereby represented by the corresponding author, agree to the following terms:
The authors retain the copyright and grant Vértices the right of first publication.
At the same time the work is licensed under the Creative Commons Attribution 4.0 International License, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon its content for any legal purpose, even commercially, provided the original work is properly cited.
Authors will not receive any material reward for the manuscript and Essentia Editora will make it available online in Open Access mode, through its own system or other databases.
Authors are authorized to enter into additional contracts separately for non-exclusive distribution of the version of the work published in Vértices (eg, publish in institutional repository or as book chapter), with acknowledgment of authorship and initial publication in this journal.
Authors are permitted and encouraged to disseminate and distribute the post-print (ie final draft post-refereeing) or publisher's version/PDF at online information sources (eg, in institutional repositories or on their personal page) at any time after the first publication of the article by Vértices.
Essentia Editora may make normative, orthographic and grammatical changes in the originals in order to maintain the standard language, with the final consent of the authors.
The content and opinions expressed in the manuscript are the sole responsibility of the author (s).
How to Cite
1.png)
