Abstract

MORALES, JESSICA; MUNOZ, LAURA; RODRIGUEZ, DANIEL  and  CANTOR, FERNANDO. Combined Action of Sex Pheromone and Wasp Apanteles gelechiidivoris in Greenhouse Tomato Crops. Acta biol.Colomb. [online]. 2014, vol.19, n.2, pp.175-184. ISSN 0120-548X.  https://doi.org/10.15446/abc.v19n2.38202.

The tomato budworm, Tuta absoluta, is considered main pest of tomato crops. Control of this pest is performed with hemicals, although, there are other strategies such as biological and ethological control. In Colombia there is not precedent that combines both strategies: ethological control with sexual pheromone and biological control with Apanteles gelechiidivoris, for the control of this pest in tomato crops. In this work four different treatments under greenhouse conditions were evaluated including biological control with A. gelechiidivoris, ethological control with sexual pheromone traps, combined action of both controls and traditional control (Chemicals). The experiments aimed to developing a control strategy to reduce populations of T. absoluta. This was done sampling a plant every to 2 meters. From each plant a sample composed by one leaf by stratum was taken and the variables number of total larvae of third instar and parasited and number of captured adults for trap. The maximum parasitism in the population of susceptible larvae was 86.38 % and for total population of larvae was 68.75 %. The combined action of pheromone traps and A. gelechiidivoris presented a greater efficiency and permanence on the control of larvae of T. absoluta.

Keywords : biological control; ethological control; integrated pest management.

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