Abstract

YASEM DE ROMERO, Marta G.; SALVATORE, Analia R.; LOPEZ, Germán  and  WILLINK, Eduardo. Natural presence of hyphomycetes fungi in hibernating Diatraea saccharalis F. larvae in sugarcane in Tucumán, Argentina. Rev. ind. agríc. Tucumán [online]. 2008, vol.85, n.2, pp.39-42. ISSN 1851-3018.

Sugarcane borer Diatraea saccharalis (Fabricius) (Lepidoptera: Pyralidae) is the most important pest affecting sugarcane crops in Tucumán. Optimizing its management entails combining different available resources, even natural ones, accurately. Since 2005, a survey of entomopathogenic fungi present in the local sugarcane agroecosystem has been under way. The aim is to detect and identify entomopathogenic fungi which cause natural death in hibernating D. saccharalis larvae affecting sugarcane in Tucumán, Argentina. By now, Beauveria bassiana (Bals.) Vuill. (57.13%), Metarhizium anisopliae (Metsch.) Sorokin (23.82%), Nomuraea rileyi (Farlow) Samson (9.53%) and Isaria sp. Persoon: Fries (9.53%) have been found naturally in hibernating sugarcane borer larvae in sugarcane crops in the province of Tucumán. This finding may be relevant in suggesting that sugarcane borer population might be regulated by hyphomycetes.

Keywords : Metarhizium anisopliae; Beauveria bassiana; Nomuraea rileyi; Isaria sp.; "Sugar cane borer".

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