Joe Ikley, North Dakota State University Extension weed specialist, conducted trials in edible fields near Fargo, North Dakota, and in Barnes County, North Dakota, on herbicide resistant pigweed.

Waterhemp control is critical because the weed can cause significant yield loss and, when it is resistant to herbicides, also results in increased control costs, as much as doubling them. Quincy Law ...

ST. PAUL -- Waterhemp is an annual weed species in the pigweed family that is capable of producing more than 1 million seeds per plant. Due to a limited number of effective herbicides, especially in ...

There is still time to manage resistance to HPPD-inhibiting herbicides in corn this year, but the window is shortening, according to University of Missouri Extension weed scientist Kevin Bradley.

This image shows the response of suspected PPO-inhibitor–resistant [A92 (R)] and known susceptible [A66 (S)] waterhemp (Amaranthus tuberculatus) populations from Wisconsin, 28 days after treatment ...

URBANA – Waterhemp is one of the most widespread and troublesome broad leaf weed species with which Illinois farmers must contend. Factors related to the species’ biology, such as prolonged ...

Corn stalks, straw and cover crops are impacting weed-control results, requiring farmers to make tactical adjustments.