Ornamental and Turf Pesticide Applicators Practice Exam

When does spring dead spot in bermudagrass occur?

1. During summer dormancy

2. After winter dormancy

3. During the spring growth phase

4. In the late fall

The correct answer is: After winter dormancy

Spring dead spot in bermudagrass typically occurs after winter dormancy, as the grass begins to transition back into active growth. This condition is characterized by dead patches that appear in early spring, often following periods of cold weather when the grass has been dormant. The timing is crucial; as bermudagrass emerges from winter dormancy and temperatures begin to rise, areas affected by spring dead spot become noticeably evident. It is primarily caused by pathogens, and is exacerbated by conditions such as poor drainage, high soil pH, and drought stress, which are factors that can persist through winter. Understanding the environmental conditions that lead to spring dead spot emphasizes the importance of proper management practices before spring, including soil treatments and environmental control, to mitigate the onset of this disease.