Destructive Pigweed Found in PA

  • Photo: Palmer Amaranth in the Field, United Soybean Board

October 14, 2013

A prolific weed that has destroyed many crops in the southern U.S. has made its way to southeastern Pennsylvania. William Curan is an Agronomist with Penn State University. He writes in the magazine Ag Professional that Palmer amaranth, a type of pigweed, has been tentatively identified here for the first time.

Curan says pigweeds can be resistant to Roundup, which means herbicide won’t kill them. He says the seeds can quickly spread to neighboring fields or farms.

It’s been called a monster weed by weed specialists in Ohio. They’re concerned that Palmer amaranth is gaining ground there. Curan is investigating how it spread to Pennsylvania.