Pesticide residues on lettuce ( L.) in Cundinamarca-Colombia.

Lettuce is Colombia's most widely cultivated leafy vegetable, but in the absence of good agricultural practices, there is the risk of some pesticide residues that affect its safety and quality. This work aimed to identify the pesticides used by farmers for the lettuce crop, the iceberg variety ( var. capitata), in some municipalities of Cundinamarca (Colombia) and to investigate their residues by sampling and analysis.