Identify and Control Poison Hemlock

Rory Lewandowski, OSU Extension Educator, Wayne County

As I have driven around the county the past few weeks, I have noticed some patches of poison hemlock on roadside banks and also in some fields. This is a concern because all parts of this plant including leaves, stems and roots are poisonous when ingested. This is a good time to scout both hay fields and pastures for this weed and take steps to control it. This is not a weed that livestock owners can afford to ignore.

Poison hemlock has an appearance similar to wild carrot and is a member of the parsley family. The plant has compound leaves made up of multiple leaflets that are finely divided and have a triangular shape. Some descriptions say the leaf has a lacy appearance. One of the key identifying characteristics is the stem. The stem of poison hemlock is Continue reading