The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.
All Corn Weeds Content
Marestail (also known as horseweed) is considered either a winter annual or biennial species that is often difficult to identify at the rosette stage. In the Dakota’s, marestail will germinate in the fall and bolt in the spring.
Kochia is a problem in north central South Dakota row crops. New post-emergent options in corn and soybean have helped alleviate kochia competition from many fields, but these herbicide options shouldn’t be completely relied upon for a long-term control plan.
Nearly one out of every three dollars generated by South Dakota agriculture starts in a corn field. Two of every three rows of corn become ethanol.
August 23, 2021
To address drought concerns, as well as weed and pest inquiries, South Dakota State University Extension will feature two booth locations at the 2021 South Dakota State Fair Sept. 2-6 in Huron.
Each year in early summer, many growers begin to notice distorted leaves on their fruits, vegetables, and crops. Most commonly the cause is a herbicide application to a nearby field.
Cool, dry conditions have slowed weed emergence and growth, but dry conditions also have limited the activation of preemergent chemicals. Given this scenario, fields need to be scouted closely to ensure that weeds do not get away.
Some herbicides can persist in soil, especially dry soil. Herbicide carryover could be an issue in 2021 across the state depending upon last year’s moisture levels and field conditions.
When growing sweet corn on a large scale, weed control can be challenging, and certain steps need to be taken before choosing an herbicide.
As cover crop usage has increased in recent years, managing weeds through a longer residual herbicide program has become more complicated. Learn some considerations for cover crops following corn silage.