Every spring we see articles about cressleaf groundsel and poison hemlock in hay fields and/or pastures. Both of these plants are poisonous and seem to be increasing in our area. In some cases, hay has been discarded to avoid potential livestock poisonings. Cressleaf groundsel is a winter annual and poison hemlock is a biennial. Both of these weeds are best controlled in the fall of the year (October is a good month), when plants are in the rosette stage of growth. Take time now to scout hay fields and pastures, especially if there is a history of either of these weeds being a problem. For information about specific herbicide recommendations as well as precautions and restrictions, contact the Wayne County Extension office at 330-264-8722.