Waterhemp is more adaptable than Palmer amaranth when it comes to conferring multiple resistances, but Palmer is the more aggressive-growing weed.

Across the state of Iowa, Wesley Everman, assistant professor and weed specialist at Iowa State University Extension, said it ...

Aaron Hager is standing in a resistant waterhemp hot zone. The soybean rows surrounding him are a blanket of five-way herbicide resistance: atrazine, ALS inhibitors, PPO inhibitors, HPPD ...

Waterhemp is too established to eradicate in 28 Manitoba municipalities, according to the province. The invasive weed has ...

Agriculture Commissioner Doug Goehring has announced that $300,000 is available for drone detection of noxious and invasive ...

Fighting waterhemp, a weed 'born for the 21st century' Pigweed, a general category that includes the increasingly worrisome waterhemp and Palmer amaranth, requires bold ideas and determination to ...

North Dakota Agriculture Commissioner Doug Goehring has announced that $300,000 in grant funding is available for drone-based ...

URBANA, Ill. -- Responding to the first known report of waterhemp showing resistance to 4-hydroxyphenylpyruvate dioxygenase-inhibiting herbicides (HPPD) such as Callisto, Impact, and Laudis, weed ...

Waterhemp has done it again. Researchers have just confirmed that waterhemp is the first weed to evolve resistance to HPPD-inhibiting herbicides. Waterhemp has done it again. University of ...

Pennsylvania has an official list of noxious weeds that pose various threats to native plants and farmers across the state. They are covered by the Controlled Plants and Noxious Weeds Act of 2017.

Farmers are turning to post-emergent herbicides, but concerns about certain weeds, such as waterhemp, last until harvest.

More information: Alexis L. Meadows et al, Using a seed impact mill to limit waterhemp (Amaranthus tuberculatus) seed inputs in Iowa soybean, Weed Science (2024). DOI: 10.1017/wsc.2024.61.