Cause Heat or moisture stress can result in a sunburn on the flower heads.
Symptoms Brown or blackened areas on the side of the plant continuously exposed to sun.
Cultural control
- Maintain adequate irrigation.
Not a common problem so it took a heat wave to get this image.
Jay W. Pscheidt, 2021.
Cause Heat or moisture stress can result in a sunburn on the flower heads.
Symptoms Brown or blackened areas on the side of the plant continuously exposed to sun.
Cultural control