Plant Fungal Diseases

Strawberries are available in grocery stores 365 days a year. This is largely due to the fact that berries are shipped from different locations across the United States and around the world. However, in the eastern United States, fresh, locally-grown strawberries are only available at farmers markets, roadside stands, and grocery stores for several weeks during the late spring and early summer. This limited availability occurs mostly because the commercial strawberry production in the East is derived from June-bearing varieties, which have a brief production season.

Pythium blight is a significant disease affecting turfgrass in the Mid-Atlantic region, particularly during warm, humid conditions. This disease impacts both cool-season and warm-season turfgrass, with creeping bentgrass, perennial ryegrass, and annual bluegrass being most susceptible. Pythium blight is caused by several species of Pythium thriving in wet and humid environments. Symptoms include water-soaked, greasy lesions on leaves and stems, progressing to large, blighted patches. Management strategies involve cultural practices such as proper irrigation, soil aeration, and maintaining appropriate mowing heights. Biological control, though beneficial, is often insufficient alone. Chemical management remains crucial, though rotating products is essential to prevent fungicide resistance. Integrated disease management practices are recommended for maintaining healthy turfgrass and mitigating the impact of Pythium blight. Author: Fereshteh Shahoveisi; Turfgrass Diseases: Pythium Blight (FS-2024-0707).