Why are my blueberry leaves turning yellow with brown spots?

Yellowing leaves with brown spots on blueberry plants can be caused by various factors, including nutrient deficiencies, fungal diseases, or environmental stress. It is important to properly diagnose the issue to determine the appropriate treatment, which may involve adjusting soil pH, providing proper nutrients, or applying fungicides. Consulting with a local agricultural extension service or a plant specialist can help identify the specific cause and recommend the best course of action.