Another methodology for spore production involves the use of fermenters and artificial media. The advantages of this technology are that spores are easily harvested and can be used to prepare formulations. In Colombia, some private companies have been trying to develop B. bassiana formulations as wettable powders and dispersible granules (Morales and Knauf 1994; Marin et al. 2000). The quality controls over those formulations are not very consistent, based on tests conducted by CENICAFÉ, Colombia's National Coffee Research Centre. Any B. bassiana product that is going to be used for the coffee growers to apply against H. hampei is continuously evaluated for quality, using CENICAFÉ approved methodology (Vélez et al. 1997; Marón et al. 2000).