Article (Scientific journals)
Nesidiocoris tenuis in Burkina Faso: Distribution, predatory capacity and insecticide sensibility
Sawadogo, Mathieu W.; Mano, Elias; Ahissou, Besmer Régis et al.
2022In Physiological Entomology
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Keywords :
biological control; insecticide; IPM; Nesidiocoris tenuis; tomato; Tuta absoluta; Physiology; Ecology, Evolution, Behavior and Systematics; Insect Science
Abstract :
[en] Tuta absoluta (Lepidoptera: Gelechiidae) is a worldwide invasive insect species, considered a major pest of tomato. It has recently established in Burkina Faso, where chemical control remains the only affordable option to limit damages. Nesidiocoris tenuis (Hemiptera: Miridae) is commercialized as a biological agent to control this pest in other parts of the world. But very limited information exists on this predator in Burkina Faso. In this study, we first performed an insect survey in all agricultural regions areas of the country, and we found N. tenuis to be widely observed in all of them. Then, we performed two laboratory bioassays and demonstrated that all instars preyed on T. absoluta eggs, whether they were fed ad libitum or they had to actively forage for their prey. Because insecticide tolerant populations of T. absoluta were recently identified, we finally aimed at identifying agrochemicals that do not harm N. tenuis. We evaluated the toxicity of two synthetic insecticides, three bio-bacterial insecticides and eight plant extracts, all being active ingredients available on the local market. Most of them (i.e., abamectin, emamectin benzoate, spinosad, spinetoram) were highly toxic for both T. absoluta and N. tenuis. In contrast, Bacillus thuringiensis var. Kurstaki, neem oil, Cleome viscosa (Asian spiderflower), Ocimum basilicum (Basil) and Cassia occidentalis (Coffee senna) were compatible with N. tenuis while still controlling T. absoluta. Based on our results, we recommend the application of Bacillus thuringiensis to both control T. absoluta and which does not compromise the maintenance of N. tenuis populations.
Disciplines :
Entomology & pest control
Agriculture & agronomy
Author, co-author :
Sawadogo, Mathieu W.;  Gembloux Agro-Bio Tech, TERRA, University of Liege, Gembloux, Belgium ; Institut du Développement Rural, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
Mano, Elias;  Centre National de Recherches Scientifiques et Technologiques, Bobo-Dioulasso, Burkina Faso
Ahissou, Besmer Régis ;  Gembloux Agro-Bio Tech, TERRA, University of Liege, Gembloux, Belgium ; Institut du Développement Rural, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
Somda, Irénée;  Institut du Développement Rural, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
Nacro, Souleymane;  Institut de l'Environnement et de Recherches Agricoles, Ouagadougou, Burkina Faso
Legrève, Anne;  Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
Verheggen, François  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Nesidiocoris tenuis in Burkina Faso: Distribution, predatory capacity and insecticide sensibility
Publication date :
2022
Journal title :
Physiological Entomology
ISSN :
0307-6962
eISSN :
1365-3032
Publisher :
John Wiley and Sons Inc
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ARES - Académie de Recherche et d'Enseignement Supérieur [BE]
Funding text :
This research was funded by the Academy of Research and Higher Education‐Commission Development Cooperation (ARES‐CDD) as part of the PRD‐ProDuIRe project.
Available on ORBi :
since 17 May 2022

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