Known for its long emergence, rapid growth, prolific seed production and ability to develop resistance to herbicides, Palmer amaranth can be a farmer’s worst enemy. Until about a decade ago ...

URBANA - Is it waterhemp or Palmer amaranth? Though identification can be difficult, University of Illinois associate professor of weed science Aaron Hager said early and accurate identification ...

Amaranthus species are among the most troublesome agricultural weeds in the world. Now, scientists have assembled genomes for waterhemp, smooth pigweed, and Palmer amaranth, paving the way for ...