INIBIOLP   05426
INSTITUTO DE INVESTIGACIONES BIOQUIMICAS DE LA PLATA "PROF. DR. RODOLFO R. BRENNER"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Effective Biological Control of Chagas disease vectors. From lab to field.
Autor/es:
M. PATRICIA JUAREZ; SERGIO J. MIJAILOVSKY; JUAN R. GIROTTI; NICOLÁS PEDRINI; JORGE E. RABINOVICH
Lugar:
Orlando
Reunión:
Otro; International Entomology Leadership Summit: Improving the Human Condition through Insect Science; 2016
Institución organizadora:
Entomological Society of America
Resumen:
The bloodsucking Triatomine bugs are the insect vectors of Chagas disease (American trypanosomiasis). Traditional chemical control is no longer effective against a growing number of highly resistant bug populations; the development of alternative and effective control tools is urgently needed. Recent evidence showed that the insect cuticle plays a significant role in the resistance mechanism. Entomopathogenic fungi have the ability to breach triatomine cuticle and are effective both against pyrethroid-susceptible and pyrethroid-resistant Triatoma infestans. Here we show the efficacy of pheromone?based infection traps to effectively kill bugs indoors, and its effect on the vector population dynamics. Fungal virulence parameters and the contribution of fungal horizontal transmission to the infection process were estimated in laboratory and field assays. The infection effects on insect population dynamics were modeled showing the efficacy of the fungal biopesticide. This low cost, low tech, green tool is the first proven alternative to help control T. infestans, regardless their susceptibility to current chemical insecticides.This ecologically safe approach is the first proven alternative to chemical insecticides for the control of T. infestans.