New structures for goat corrals to control peridomestic populations of Triatoma infestans (Hemiptera: Reduviidae) in the Gran Chaco of Argentina

GORLA DAVID ELADIO; ABRAHAN LUCIANA BEATRIZ; HERNÁNDEZ MARÍA LAURA; PORCASI XIMENA; HRELLAC HUGO; CARRIZO HUGO; CATALÁ SILVIA SUSANA

MEMóRIAS DO INSTITUTO OSWALDO CRUZ.

FUNDACO OSWALDO CRUZ

Lugar: Rio de Janeiro; Año: 2013 vol. 108 p. 352 - 358

0074-0276

Goat production is an important economic activities for rural communities in the Gran Chaco of Argentina. Goat corrals are important for the survival of T. infestans peridomestic populations. This study evaluated the impact of the modification of the traditional structure of the goat corral on T. infestans populations and on goat productivity in the region of Los Llanos (La Rioja). Thirty nine experimental corrals were constructed and 57 traditional corrals were kept as controls. We evaluated the infestation of the control and experimental corrals during five years after the structures construction. The results showed that the new structures enhanced T. infestans infestation detection, decreased the abundance of this species and contributed to a better control and monitoring of their populations by vector control programs using pyrethroid insecticides, because of the increased visibility of the insects and a better performance of the suspension concentrate formulation of the pyrethroid. The experimental corrals significantly increased goat productivity and represent an element through which local governments can promote the development of rural communities. Acceptability and adoption of the new corrals by the owners was high, as the enclosures offer a better protection for the goats, higher growth of kids and facilitates the herd handling.T. infestans peridomestic populations. This study evaluated the impact of the modification of the traditional structure of the goat corral on T. infestans populations and on goat productivity in the region of Los Llanos (La Rioja). Thirty nine experimental corrals were constructed and 57 traditional corrals were kept as controls. We evaluated the infestation of the control and experimental corrals during five years after the structures construction. The results showed that the new structures enhanced T. infestans infestation detection, decreased the abundance of this species and contributed to a better control and monitoring of their populations by vector control programs using pyrethroid insecticides, because of the increased visibility of the insects and a better performance of the suspension concentrate formulation of the pyrethroid. The experimental corrals significantly increased goat productivity and represent an element through which local governments can promote the development of rural communities. Acceptability and adoption of the new corrals by the owners was high, as the enclosures offer a better protection for the goats, higher growth of kids and facilitates the herd handling.