SciELO - Scientific Electronic Library Online

vol.72 número2Bacterias Endófitas de Pinus taeda L. como Agentes de control Biológico de Fusarium circinatum Nirenberg & O'DonnellAcumulación Potencial de Proteína en Jabalí Europeo (Sus scrofa L.) índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Chilean journal of agricultural research

versión On-line ISSN 0718-5839


CARRASCO-LETELIER, Leonidas; MENDOZA, Yamandu  y  RAMALLO, Gustavo. Acute Contact Toxicity Test of Oxalic Acid on Honeybees in the Southwestern Zone of Uruguay. Chilean J. Agric. Res. [online]. 2012, vol.72, n.2, pp. 285-289. ISSN 0718-5839.

This work studies the acute contact toxicity of oxalic acid (OA) on a honeybee polyhybrid subspecies (Apis mellifera), which is the dominant biotype in southwestern zone of Uruguay (SWZU) and the country's most important honey-producing region. We determined the mean lethal dose (LD50), as well as the no observed effect level (NOEL) and the lowest observed effect level (LOEL) values. We also estimated the total number of honeybees per hive in the test area. The aim was to assess the relationship between the maximum OA dose used in Uruguay (3.1 g OA per hive) and the toxicological parameters of honeybees from SWZU. The current dose of 3.1 g OA per hive corresponds to 132.8 OA per honeybee since determined NOEL is 400 OA per honeybee; our results indicate that the current dose could be increased to 9.3 g OA per hive. The results also highlight some differences between the LD50 value in SWZU honeybees (548.95 OA per honeybee) and some published LD50 values for other honeybee subspecies.

Palabras clave : LD50; Uruguay.

        · resumen en Español     · texto en Inglés     · pdf en Inglés