Technical Abstract: Fusarium wilt of orchids is highly destructive and economically limiting to the production of quality orchids that has steadily increased in many production facilities. Important crops such as phalaenopsis, cattleyas, and oncidiums appear to be especially susceptible to certain Fusarium species. Fusarium wilt appears to be more frequent and severe in commercial nurseries that have adopted newer production technology and pot formulations for fast production cycles. These new production cycles may be increasing the susceptibility of some orchids to this and other diseases. Increased disease incidence motivates growers to increase chemical applications in an attempt to control disease. However, chemicals are often applied too late in the disease cycle for effective disease control. Ultimately, fungicides are applied unnecessarily, valuable time and labor are wasted, and the emergence of fungicide-resistant pathogens are increased. This bulletin article covers Fusarium disease symptoms, biology, management, and chemical control.