| Title: | Side effects of a mixture of essential oils on Psyttalia concolor |
| Author(s): | Alves TJS; Murcia-Meseguer A; Azpiazu C; Wanumen A; Wanderley-Teixeira V; Teixeira AAC; Ortiz A; Medina P; |
| Address: | "Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros s/n, Dois Irmaos, Recife, PE, 52171-900, Brazil. thiago.alves.t@gmail.com. Unidad de Proteccion de Cultivos, Departamento de Produccion Agraria, Escuela Tecnica Superior de Ingenieria Agronomica, Alimentaria y de Biosistemas, Universidad Politecnica de Madrid (UPM), Av. Puerta de Hierro, 2, 28040, Madrid, Spain. Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros s/n, Dois Irmaos, Recife, PE, 52171-900, Brazil. Departamento de Quimica Organica e Inorganica, EPSL, Universidad de Jaen, 23700, Linares, Spain" |
| DOI: | 10.1007/s10646-020-02258-5 |
| ISSN/ISBN: | 1573-3017 (Electronic) 0963-9292 (Linking) |
| Abstract: | "Integrated Pest Management programs do not always prioritize natural enemies when selecting control methods; too often these important pest reducing agents are negatively affected by the action of other methods in agroecosystems. The aim of this research was to evaluate side effects of a bioinsecticide, developed from the mixture of cedar (Cedrus atlantica), eucalyptus (Corymbia citriodora) and lemon grass (Cymbopogon citratus) essential oils (EOs), in a ratio of 1:1:1, on Psyttalia concolor (Szepligeti) (Hymenoptera: Braconidae) which is a parasitoid of some pests of the Tephritidae family, as Ceratitis capitata. The LD(50) of the EOs mixture for C. capitata females was 3.09 microl/g, whereas the LD(50) for P. concolor females was 20.45 microl/g which suggests the natural enemy is more tolerant to the EOs mixture. P. concolor parasitized L3 larvae of C. capitata through a voile treated with the mixture of EOs at 1.8% without causing any deleterious effects neither on the percentage of attacked hosts nor on the emergence rate, whereas at the highest concentration tested, 4.8%, decreased both parameters during the 2 first days after treatment. Semi-field assays showed that mixture of EOs was harmless to P. concolor when released 4 h after treatment whereas killed 55 +/- 3.9% males and 37.5 +/- 1.6% females of C. capitata. The mixture of EOs used jointly with lambda-cyhalothrin or kaolin, both compounds applied against C. capitata in conventional and organic farming, respectively, did not increase the toxicity and/or persistence against the pest" |
| Keywords: | "Animals Female Insecta/*physiology Male Oils, Volatile/*toxicity Pest Control/*methods Botanical insecticides Braconidae Ceratitis capitata Parasitism rate Parasitoid-bioinsecticide interaction Physiological selectivity;" |
| Notes: | "MedlineAlves, Thiago J S Murcia-Meseguer, Ana Azpiazu, Celeste Wanumen, Andrea Wanderley-Teixeira, Valeria Teixeira, Alvaro A C Ortiz, Antonio Medina, Pilar eng AGL 2013-47603-C2-1/Ministerio de Ciencia e InnovaciOn/ 2020/08/28 Ecotoxicology. 2020 Nov; 29(9):1358-1367. doi: 10.1007/s10646-020-02258-5. Epub 2020 Aug 27" |
