Dwight Lingenfelter, Extension Associate, Weed Science, PennState Extension
(Previously published online with Farm Progress, American Agriculturist: May 26, 2023)
Over the holiday weekend, I took the opportunity to make the trip back to my parents to help make hay. While working the fields, I noticed a few plants along the field edges that made me cringe. Upon closer inspection, what I unfortunately found where four stalks of poison hemlock. With a pair of gloves and my trusty trimmers, I took care of these stately weeds. I also made a note in my phone on where these weeds where on the farm in addition to a marker flag so I could return this fall to take care of any additional regrowth that may occur. With this being, I found this piece from Penn State University to be quite timely and useful as we come into what I see as a stretch of dry weather. As pastures and hay fields continue to be knocked down, this year it will be most important to take a closer look at the issues that toxic pasture and hayfield weeds may play in our livestock operations.
During drought and the usual summer slump that reduces forage growth, there are concerns for poisonous weeds in pastures and hay.
Livestock may be forced to graze on weeds they normally would not, or they may eat weeds out of curiosity. It is important to scout your pastures and remove these weeds — or broken limbs and leaves — before they cause health problems in your animals. Continue reading Get Familiar with Toxic Pasture Weeds