Crop Treatments

All Crop Treatments Content

Mesonet camera overlooking spring pasture and cropland in Avon, South Dakota.

Great Temperature Shifts This Spring: Implications for burndown herbicide applications

The 2026 growing season is beginning as temperatures begin to increase. The increased temperatures are favorable for growing conditions, however, great temperature shifts throughout the day may adversely affect the activity of herbicide applied for preplant burndown.

Group of young producers inspecting beef cattle in a feedlot

Using Feedlot Manure to Reduce Crop Production Costs

Manure plays a key role in reducing system costs for integrated livestock-crops enterprises. Livestock waste can be a valuable source of crop nutrients when correctly managed.

A sprawling sorghum field ready for harvest

Sorghum Weed Control

Early competition, especially from grass, is critical for successfully controlling weeds in sorghum. There are preemergence as well as postemergence herbicides available for this crop. Early treatment provides the best control of broadleaved weeds with crop stage also being a critical factor for some postemergence treatments.

Greenhouse bench containing plants in potted substrate exhibiting death (brown plants) and survival (green plants) after herbicide treatment.

SDSU Research Update on Herbicide Resistance Screening

SDSU Extension's herbicide resistance screening has been gathering valuable information on regional resistance patterns across South Dakota. Results will help guide herbicide selection, tank-mix strategies, and resistance management programs for growers.

Field of green soybean plants with green corn and blue sky in the background.

EPA Approves Dicamba for Over-the-Top Applications in Tolerant Soybean in 2026 and 2027

The Environmental Protection Agency has issued a limited-time registration of over-the-top use of dicamba on tolerant cotton and soybean for two growing seasons, 2026 and 2027.

sun rising over South Dakota field

South Dakota Pest Management Guides

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.

Two clear bottles labeled 4 and 5 with white liquid inside. Bottle 5 has white substrate settled at the bottom.

Herbicide Mixing Order

The order in which herbicides are mixed in a tank can influence the effectiveness.

aerial view of South Dakota farm and surrounding land

Crops

During the growing season, SDSU Extension provides weekly production recommendations.

Yellow wheat field with green weeds throughout.

Weed Control Field Test Data

Data books to use as a reference to select appropriate herbicide(s) for row crops

Gloved hands examining a musk thistle seedhead.

Now is the Time to Plan for Noxious Weed Control in 2026

Most of South Dakota experienced first frosts that were delayed by at least one month, allowing for noxious weed growth to continue later in the season. Now is the time to plan for noxious weed management tactics.