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Revista de la Sociedad Entomológica Argentina

versión impresa ISSN 0373-5680versión On-line ISSN 1851-7471

Resumen

MANCINI, Micaela A.  y  MARIOTTINI, Yanina. Analysis of the management of grasshopper species (Orthoptera: Acrididae), agricultural pest in Laprida county, Buenos Aires, Argentina. Rev. Soc. Entomol. Argent. [online]. 2021, vol.80, n.4, pp.100-107.  Epub 29-Dic-2021. ISSN 0373-5680.

Grasshoppers are among the dominant insects in most grassland systems. These insects’ communities tend to exhibit temporal variations in the distribution and abundance of their species, and during outbreak years cause important economic loss in both implanted pastures and crops. In the study area, Laprida county, as well as in other ones of Buenos Aires province, this pest problem has been recognized since last century. The aim of this study was to analyze the pest management of grasshoppers made by farmers and related institutions in Laprida using both qualitative (interviews and documentary observation) and quantitative methods (surveys). About 80% of surveyed farmers considered that grasshoppers are the main pest in the region, and 60% of them apply chemical insecticides against this pest, mainly on crops. Besides, only 12.8% of surveyed farmers are aware of nonchemical alternatives for pest control, such us biological control and natural enemies. Most of interviewed farmers acknowledged the importance of preventive management through systematic grasshopper monitoring and spot treatments in risky areas. Additionally, farmers showed interest for implement more environmentally-safer strategies such as biological control.

Palabras clave : Agroecosystem; Pest control; Qualitative method; Quantitative method.

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