Why do grass patches turn yellow and die shortly after fertilizing?
If the grass bordering these yellow areas is a healthy green color and the yellow areas don’ t spread, fertilizer burn is to blame. Whenever excessive amounts of these materials contact grass, they cause the blades to dry out and die. You can prevent burn by picking up spilled fertilizer, applying fertilizer according to label directions and thoroughly watering the grass after fertilizing to wash it into the soil.
