Commercially, application of fungicides may be costly. To cut down on costs, one must understand the life cycle of the pathogens. Different fungicides are more effective at certain infection stages. Understand that throughout the development of the plant, different fungicides should be considered to protect plant health. In order to cut down on spraying costs, it is important to understand life cycle of the pathogen. “Research in New York demonstrated berries of most varieties become resistant to black rot infection 3-4 weeks after bloom, therefore, sprays for black rot should not be needed at this time”. Understanding times to limit application is important for good production practices. This shows that preventative chemical measures before the three to four weeks would be optimal. Each region should develop their own fungicide application program in correlation with cultural practices.