“If we find pigweed seed we just have to assume it is Palmer amaranth even if we don’t know,” he says. “If a grower sends us something with pigweed, we reject it.” Right now it’s hard ...

Until about a decade ago, Palmer amaranth was relatively unheard of in the Midwest. Since then, this pigweed has made a name for itself as one of the most competitive weeds in corn, soybean and ...

A highly aggressive, herbicide-resistant weed known as Palmer amaranth is rapidly spreading across southern Idaho, posing significant challenges for crop farmers. Albert Adjesiwor, University of ...

redroot pigweed, and Palmer amaranth. Why should you care about these weeds? Well, pigweed grows quickly, spreads like ...

Albert Adjesiwor, University of Idaho Extension Weed Specialist and Associate Professor, said a pigweed, known as Palmer Amaranth, is something he is familiar with, after the weed began popping up ...

Researchers from the University of Illinois Urbana-Champaign and partners have produced complete, chromosome-level genomes for Palmer amaranth, smooth and redroot pigweed. The reference genomes expose ...

A herbicide-resistant pigweed first confirmed in the state less than three years ago has already infested more than 7,000 ...

Pigweed is one of the most wide-spread weed species in Delaware and the region, infesting vegetable crops as well as grain crops. Pigweed is capable of quickly becoming the dominant species in a field ...

A recently published article in the journal Weed Science demonstrates just how devastating Palmer amaranth (Amaranthus palmeri) can be for furrow-irrigated rice production, even in small amounts.