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Biblioteca(s): | INIA Tacuarembó.
Fecha corriente: | 12/11/2014
Fecha de la última actualización: | 20/09/2019
Autoria: | MARTÍNEZ, G.; GONZÁLEZ, A.; DICKE, M.
Afiliación: | GONZALO ANIBAL MARTINEZ CROSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRÉSS GONZÁLEZ, Universidad de la República (UdelaR)/ Facultad de Química.; MARCEL DICKE, Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands.
Título: | Rearing and releasing the egg parasitoid Cleruchoides noackae, a biological control agent for the Eucalyptus bronze bug.
Año de publicación: | 2018
Fuente/Imprenta: | Biological Control, 2018, v. 123, p. 97-104.
DOI: | 10.1016/j.biocontrol.2018.05.008
Idioma: | Inglés
Notas: | History article: Received 21 July 2017 // Received in revised form 4 May 2018 // Accepted 16 May 2018 // Available online 17 May 2018.

Contenido:

Biological control is a major tool for forest insect pest management. We initiated a biological control program for the Eucalyptus bronze bug, Thaumastocoris peregrinus, with the egg parasitoid Cleruchoides noackae. Parasitized eggs were imported from a mass rearing in Brazil, and a rearing colony was set up. The wasp was reared in
plastic tubes each containing ten individuals that were offered 100 eggs of the bronze bug and a solution of water and honey. During 30 generations, rearing quality parameters were compared against expected quality standards set a priori, based on information from other rearing colonies. We also assessed the effect of temperature on developmental time, measured as the first day of emergence of adult parasitoids, as well as the relation between host-egg abortion and parasitization by C. noackae, and the evolution of the sex ratio of the emergent wasps within a single generation. Field releases were made yearly during summers in commercial plantations, starting
in March 2013. Survival and emergence rates were either stable or increased throughout 30 generations. The percentage of females was slightly above 50%. Rearing at 18 °C and 20 °C took longer than at 22 °C, but productivity was similar. Host-egg abortion was increased by parasitization. The proportion of females increased as
the emergence period progressed. Field surveys in two sites revealed that the wasp survived for two years. Fieldcollected parasitoids exhibited better quality indices than individuals from the laboratory rearing. Results indicate that biological control of the bronze bug with C. noackae is feasible with this rearing and release protocol.

Palabras-Clave: | INOCULATIVE RELEASE; PLANTATION FORESTRY; REARING QUALITY; THAUMASTOCORIS PEREGRINUS.
Thesagro: | EUCALYPTUS; URUGUAY.
Categoría del tema: | K10 Producción forestal
Registro original: | INIA Tacuarembó (TBO)
Ejemplares: | TBO - (100290-1) - PXI - AP - DD -  -  -  - DIS