Side effects of a mixture of essential oils on Psyttalia concolor
- PDF / 950,133 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 90 Downloads / 165 Views
Side effects of a mixture of essential oils on Psyttalia concolor Thiago J. S. Alves 1 Ana Murcia-Meseguer2 Celeste Azpiazu2 Andrea Wanumen2 Valéria Wanderley-Teixeira3 Álvaro A. C. Teixeira3 Antonio Ortiz4 Pilar Medina2 ●
●
●
●
●
●
●
1234567890();,:
1234567890();,:
Accepted: 20 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
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 (Szèpligeti) (Hymenoptera: Braconidae) which is a parasitoid of some pests of the Tephritidae family, as Ceratitis capitata. The LD50 of the EOs mixture for C. capitata females was 3.09 µl/g, whereas the LD50 for P. concolor females was 20.45 µl/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 Physiological selectivity Parasitoid-bioinsecticide interaction Braconidae Ceratitis capitata Botanical insecticides Parasitism rate ●
●
●
●
●
Introduction
Supplementary information The online version of this article (https:// doi.org/10.1007/s10646-020-02258-5) contains supplementary material, which is available to authorized users. * Thiago J. S. Alves [email protected] 1
Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE 52171-900, Brazil
2
Unidad de Protección de Cultivos, Departamento de Producción Agraria, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Av. Puerta de Hierro, 2, 28040 Madrid, Spain
3
Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE 52171-900, Brazil
4
Departamento de Química Orgánica e Inorgánica, EPSL, Universidad de Jaén, 23700 Linares, Spain
Biological control is a priority for Integrated Pest Management (IPM), but
Data Loading...
