Sechium edule fruit (Cucurbitaceae) is consumed as vegetable at horticultural maturity. Its success on export markets has
represented up to 8 % of annual growth (Anonymous, 2003). Mexico is the second world-wide exporter after Costa Rica, with a
production estimated in 281,346 tons from approximately 3634 ha, 2500 ha of which are contributed by the State of Veracruz
(Cadena, 2005). One of the main limiting factors in the marketing of this vegetable is the losses through fungi diseases, which
reach from 15 % (Valverde et al., 1989) to 25 % (Narayanasamy, 2006).