Cotesia flavipes (Hymenoptera: Braconidae) as a biological control agent of sugarcane stem borers in Colombia’s Cauca River Valley
Keywords:
Diatraea tabernella, Diatraea busckella, Diatraea saccharalis, Diatraea indigenella, Lydella minense, Cytochrome oxidase I,Abstract
Summary
Releases of the parasitoid Cotesia flavipes have been carried out since late 2014 in Colombia’s Cauca River Valley to complement other biological control on sugarcane stem borers (Diatraea spp.). To confirm the identity of the species being released as well as those recovered in the field, including samples from the department of Santander in western Colombia, specimens were examined using a fragment of cytocrome oxydase I (COI). Results confirmed that the genetic identity of the specimens sequenced corresponded to C. flavipes, with a genetic divergence of 0.00 to 0.03 as compared with GenBank registers. In the Cauca River Valley, parasitoid distribution currently extends from La Virginia (Risaralda) to Palmira (Valle del Cauca), and is mainly associated to the geographical distribution of the new Diatraea species reported in the region, D. busckella and D. tabernella.
Sumario
Desde finales del año 2014 se ha venido liberando al parasitoide Cotesia flavipes en el valle del río Cauca de Colombia para complementar otros esfuerzos de control biológico de los barrenadores del tallo de la caña de azúcar (Diatraea spp.). Para confirmar la identidad tanto de los parasitoides que se han venido liberando como de aquellos recuperados en campo, incluso de aquellos provenientes del departamento de Santander al oeste de Colombia, se analizaron especímenes utilizando un fragmento de la citocromo oxidasa I (COI). Se confirmó que la identidad genética de los especímenes secuenciados corresponde a C. flavipes, con un estimativo de divergencia genética de 0.00 y 0.03 en comparación con los registros Genbank. En el valle del río Cauca la distribución del parasitoide se extiende actualmente entre La Virginia (Risaralda) y Palmira (Valle del Cauca), y es asociada principalmente a la distribución de las nuevas especies de Diatraea reportadas en la región, D. busckella y D. tabernella.
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