Which disease was historically associated with Fusarium patch?

• A. Summer patch
• B. Necrotic ring spot
• C. Brown patch
• D. Pythium blight

Answer: (A)

Fusarium patch and Summer patch have long been linked in turf history because the same patchy turf symptoms were described under Fusarium patch in earlier writings and later associated with a summer-time disease called Summer patch. In the older literature, the fungal pathogen causing the patches was identified as Fusarium, and the observed symptoms tended to appear or be noticed during warmer periods, so the condition was historically described as Summer patch as well. Over time, taxonomy clarified the pathogens involved, but the historical connection remains: what was once called Fusarium patch is closely tied to Summer patch in older texts. The other diseases are caused by different pathogens and typically have distinct environmental triggers and symptom patterns, so they aren’t the historical association in question.