Phomopsis is a genus of fungi that primarily affects plants, causing various diseases. It is known for its role in the decay of fruits, seeds, and woody plants. The fungi can lead to symptoms such as leaf spots, fruit rot, and dieback, impacting agricultural productivity. These fungi thrive in warm, moist environments and can spread through spores. Phomopsis species are often associated with crops like grapes, soybeans, and citrus fruits. Effective management includes proper sanitation, crop rotation, and the use of resistant plant varieties to minimize the impact of these pathogens.