Spanish Abstract: En este documento se presenta un analisis de la industria de plaguicidas en Colombia. Se consideran las principales variables internacionales de produccion y consumo de plaguicidas. Posteriormente, se analiza la participacion de los plaguicidas en la estructura productiva colombiana y se presentan los antecedentes regulatorios y el regimen de libertad regulada. Utilizando la base de datos proporcionada por el Ministerio de Agricultura y Desarrollo Rural, con informacion entre enero de 2006 y mayo de 2013, se calculan los indicadores de concentracion y dominancia. English Abstract: This paper presents an analysis of the pesticide industry in Colombia. Some variables like international production and consumption of pesticides are considered for the worldwide context. Subsequently, we study the involvement of pesticides in Colombian production structure. Likewise, a regulatory background and the regulated freedom regime are presented. We use a database provided by the Ministry of Agriculture and Rural Development with information between January 2006 and May 2013. These data allowed elaborate an analysis of market concentration and industrial dominance. Similarly we studied the differences between ex-factory price and the retail price.