UNIDEF   23986
UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICO PARA LA DEFENSA
Unidad Ejecutora - UE
artículos
Título:
3 Traslucent pheromone traps increase trapping efficiency of ambrosia beetle Megaplatypus mutatus
Autor/es:
GONZALEZ AUDINO P.; GATTI PABLO; ZERBA EDUARDO
Revista:
CROP PROTECTION
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2011 vol. 30 p. 745 - 747
ISSN:
0261-2194
Resumen:
Megaplatypus mutatus (=Platypus mutatus) is an ambrosia beetle native to South
America. Unlike most ambrosia beetles, it attacks only living
trees, penetrating the xylem of its host by boring long tunnels. These galleries cause severe stem-breakage and mortality in
commercial poplar plantations.
In previous studies we
showed that volatile emissions from pioneer male M. mutatus are composed of (+)-6-methyl-5-hepten-2-ol, 6-methyl-5-hepten-2-one
and 3-pentanol. Recently,
we developed reservoir
type controlled release dispensers and tested the efficacy of various trap
designs in the field. Results showed that black cross-vane traps (CIPEIN-CV) captured
significantly more insects than other traps designs baited with the same
dispensers. In the present study we modified the colour, the construction
material and the size of traps with the aim of increasing trapping efficacy and
reducing the final trap cost. The results
showed that significantly more female and male M. mutatus were captured in
small and large traslucent traps (CIPEIN-CVt) than in black CIPEIN-CV trap. Furthermore,
traslucent CIPEIN CVt trap costs were significantly lower than costs for
CIPEIN-CV traps. Significantly improved trapping efficacy with an important
decrease in final costs will allow detection of considerably lower populations
of M. mutatus in monitoring programs.