| Title: | "Volatile Organic Compounds from Entomopathogenic and Nematophagous Fungi, Repel Banana Black Weevil (Cosmopolites sordidus)" |
| Author(s): | Lozano-Soria A; Picciotti U; Lopez-Moya F; Lopez-Cepero J; Porcelli F; Lopez-Llorca LV; |
| Address: | "Department of Marine Science and Applied Biology, Laboratory of Plant Pathology, University of Alicante, 03080 Alicante, Spain. Department of Soil, Plant, and Food Sciences-(DiSSPA), University of Bari Aldo Moro, 70126 Bari, Italy. Dyrecta Lab Istituto di Ricerca, 70014 Conversano, Bari, Italy. Technical Department of Coplaca, 38001 Tenerife, Spain" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "Fungal Volatile Organic Compounds (VOCs) repel banana black weevil (BW), Cosmopolites sordidus (Germar, 1824), the key-pest of banana [Musa sp. (Linnaeus, 1753)]. The entomopathogens Beauveria bassiana (Bb1TS11) and Metarhizium robertsii (Mr4TS04) were isolated from banana plantation soils using an insect bait. Bb1TS11 and Mr4TS04 were pathogenic to BW adults. Bb1TS11, Bb203 (from infected palm weevils), Mr4TS04 and the nematophagous fungus Pochonia clamydosporia (Pc123), were tested for VOCs production. VOCs were identified by Gas Chromatography/Mass Spectrometry-Solid-Phase Micro Extraction (GC/MS-SPME). GC/MS-SPME identified a total of 97 VOCs in all strains tested. Seven VOCs (styrene, benzothiazole, camphor, borneol, 1,3-dimethoxy-benzene, 1-octen-3-ol and 3-cyclohepten-1-one) were selected for their abundance or previous record as insect repellents. BW-starved adults in the dark showed the highest mobility to banana corm in olfactometry bioassays. 3-cyclohepten-1-one (C7), produced by all fungal strains, is the best BW repellent (p < 0.05), followed by 1,3-dimethoxy-benzene (C5). The rest of the VOCs have a milder repellency to BW. Styrene (C1) and benzothiazole (C2) (known to repel palm weevil) block the attraction of banana corm and BW pheromone to BW adults in bioassays. Therefore, VOCs from biocontrol fungi can be used in future studies for the biomanagement of BW in the field" |
| Keywords: | Cosmopolites sordidus Curculionidae Musa accuminata VOCs biological control invasive species olfactory response pest control pheromone semiochemicals; |
| Notes: | "PubMed-not-MEDLINELozano-Soria, Ana Picciotti, Ugo Lopez-Moya, Federico Lopez-Cepero, Javier Porcelli, Francesco Lopez-Llorca, Luis Vicente eng Grant Agreement No 727624/European Union's Horizon 2020 Research and Innovation Programme: Microbial Uptakes for Sustainable management of major bananA pests and diseases/ Switzerland 2020/08/13 Insects. 2020 Aug 6; 11(8):509. doi: 10.3390/insects11080509" |
