Coffee is one of the most widely consumed beverages in the world. Its cultivation is an important factor of social and economic stability. However, its production is affected by several diseases. Coffee leaf rust (CLR), a cryptogamic disease caused by the fungus Hemileia vastatrix, is the most serious coffee leaf disease known to date. It causes damages that induce severe yield losses. Its control mainly relies on good cultural practices, fungicides, resistant cultivars and biocontrol using hyperparasites (such as the fungus Lecanicillium lecanii). Fungicides are widely used, but have a harmful ecological impact. Coffee being a perennial plant, planting resistant cultivars implies to renew the plantation, which is very costly. Hyperparasites could hence be a good alternative, but careful analysis is needed for their deployment to be successful in the long term. Our goal is to understand and control the propagation of CLR, deploying hyperparasites.