Plants Database
Pasture Weed Control Database
Poison Hemlock
Spray poison hemlock when it is less than 18 inches tall and before it flowers. Grazon P+D and GrazonNext HL at 1 qt/A are very effective for poison hemlock control when applied in May or early June.
![Poison Hemlock](https://plants-database.s3.amazonaws.com/conium_maculatum.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAQCTTXN4WB7YGDWRU%2F20240727%2Fus-east-2%2Fs3%2Faws4_request&X-Amz-Date=20240727T025747Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=66ec3eb664d68930141635d28839f411a6028c66fc208c37cd951c90c93b0e53)